3477 lines
86 KiB
C
3477 lines
86 KiB
C
/**
|
|
* $Id$
|
|
*
|
|
* ***** BEGIN GPL LICENSE BLOCK *****
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software Foundation,
|
|
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
|
|
* All rights reserved.
|
|
*
|
|
* Contributors: Hos, Robert Wenzlaff.
|
|
* Contributors: 2004/2005/2006 Blender Foundation, full recode
|
|
*
|
|
* ***** END GPL LICENSE BLOCK *****
|
|
*/
|
|
|
|
/* system includes */
|
|
#include <stdio.h>
|
|
#include <math.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
|
|
/* External modules: */
|
|
#include "MTC_matrixops.h"
|
|
|
|
#include "BLI_arithb.h"
|
|
#include "BLI_blenlib.h"
|
|
#include "BLI_jitter.h"
|
|
#include "BLI_rand.h"
|
|
#include "BLI_threads.h"
|
|
|
|
#include "BKE_utildefines.h"
|
|
|
|
#include "DNA_group_types.h"
|
|
#include "DNA_image_types.h"
|
|
#include "DNA_lamp_types.h"
|
|
#include "DNA_material_types.h"
|
|
#include "DNA_mesh_types.h"
|
|
#include "DNA_meshdata_types.h"
|
|
#include "DNA_object_types.h"
|
|
#include "DNA_texture_types.h"
|
|
|
|
#include "BKE_global.h"
|
|
#include "BKE_material.h"
|
|
#include "BKE_node.h"
|
|
#include "BKE_texture.h"
|
|
|
|
/* local include */
|
|
#include "renderpipeline.h"
|
|
#include "render_types.h"
|
|
#include "renderdatabase.h"
|
|
#include "pixelblending.h"
|
|
#include "pixelshading.h"
|
|
#include "gammaCorrectionTables.h"
|
|
#include "shadbuf.h"
|
|
#include "zbuf.h"
|
|
|
|
#include "texture.h"
|
|
|
|
/* own include */
|
|
#include "rendercore.h"
|
|
|
|
|
|
/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
|
|
/* defined in pipeline.c, is hardcopy of active dynamic allocated Render */
|
|
/* only to be used here in this file, it's for speed */
|
|
extern struct Render R;
|
|
/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
|
|
|
|
/* x and y are current pixels in rect to be rendered */
|
|
/* do not normalize! */
|
|
void calc_view_vector(float *view, float x, float y)
|
|
{
|
|
|
|
view[2]= -R.clipsta;
|
|
|
|
if(R.r.mode & R_ORTHO) {
|
|
view[0]= view[1]= 0.0f;
|
|
}
|
|
else {
|
|
|
|
if(R.r.mode & R_PANORAMA)
|
|
x-= R.panodxp;
|
|
|
|
/* move x and y to real viewplane coords */
|
|
x= (x/(float)R.winx);
|
|
view[0]= R.viewplane.xmin + x*(R.viewplane.xmax - R.viewplane.xmin);
|
|
|
|
y= (y/(float)R.winy);
|
|
view[1]= R.viewplane.ymin + y*(R.viewplane.ymax - R.viewplane.ymin);
|
|
|
|
// if(R.flag & R_SEC_FIELD) {
|
|
// if(R.r.mode & R_ODDFIELD) view[1]= (y+R.ystart)*R.ycor;
|
|
// else view[1]= (y+R.ystart+1.0)*R.ycor;
|
|
// }
|
|
// else view[1]= (y+R.ystart+R.bluroffsy+0.5)*R.ycor;
|
|
|
|
if(R.r.mode & R_PANORAMA) {
|
|
float u= view[0] + R.panodxv; float v= view[2];
|
|
view[0]= R.panoco*u + R.panosi*v;
|
|
view[2]= -R.panosi*u + R.panoco*v;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
static void fogcolor(float *colf, float *rco, float *view)
|
|
{
|
|
float alpha, stepsize, startdist, dist, hor[4], zen[3], vec[3], dview[3];
|
|
float div=0.0f, distfac;
|
|
|
|
hor[0]= R.wrld.horr; hor[1]= R.wrld.horg; hor[2]= R.wrld.horb;
|
|
zen[0]= R.wrld.zenr; zen[1]= R.wrld.zeng; zen[2]= R.wrld.zenb;
|
|
|
|
VECCOPY(vec, rco);
|
|
|
|
/* we loop from cur coord to mist start in steps */
|
|
stepsize= 1.0f;
|
|
|
|
div= ABS(view[2]);
|
|
dview[0]= view[0]/(stepsize*div);
|
|
dview[1]= view[1]/(stepsize*div);
|
|
dview[2]= -stepsize;
|
|
|
|
startdist= -rco[2] + BLI_frand();
|
|
for(dist= startdist; dist>R.wrld.miststa; dist-= stepsize) {
|
|
|
|
hor[0]= R.wrld.horr; hor[1]= R.wrld.horg; hor[2]= R.wrld.horb;
|
|
alpha= 1.0f;
|
|
do_sky_tex(vec, vec, NULL, hor, zen, &alpha);
|
|
|
|
distfac= (dist-R.wrld.miststa)/R.wrld.mistdist;
|
|
|
|
hor[3]= hor[0]*distfac*distfac;
|
|
|
|
/* premul! */
|
|
alpha= hor[3];
|
|
hor[0]= hor[0]*alpha;
|
|
hor[1]= hor[1]*alpha;
|
|
hor[2]= hor[2]*alpha;
|
|
addAlphaOverFloat(colf, hor);
|
|
|
|
VECSUB(vec, vec, dview);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
float mistfactor(float zcor, float *co) /* dist en height, return alpha */
|
|
{
|
|
float fac, hi;
|
|
|
|
fac= zcor - R.wrld.miststa; /* zcor is calculated per pixel */
|
|
|
|
/* fac= -co[2]-R.wrld.miststa; */
|
|
|
|
if(fac>0.0) {
|
|
if(fac< R.wrld.mistdist) {
|
|
|
|
fac= (fac/(R.wrld.mistdist));
|
|
|
|
if(R.wrld.mistype==0) fac*= fac;
|
|
else if(R.wrld.mistype==1);
|
|
else fac= sqrt(fac);
|
|
}
|
|
else fac= 1.0;
|
|
}
|
|
else fac= 0.0;
|
|
|
|
/* height switched off mist */
|
|
if(R.wrld.misthi!=0.0 && fac!=0.0) {
|
|
/* at height misthi the mist is completely gone */
|
|
|
|
hi= R.viewinv[0][2]*co[0]+R.viewinv[1][2]*co[1]+R.viewinv[2][2]*co[2]+R.viewinv[3][2];
|
|
|
|
if(hi>R.wrld.misthi) fac= 0.0;
|
|
else if(hi>0.0) {
|
|
hi= (R.wrld.misthi-hi)/R.wrld.misthi;
|
|
fac*= hi*hi;
|
|
}
|
|
}
|
|
|
|
return (1.0-fac)* (1.0-R.wrld.misi);
|
|
}
|
|
|
|
static void spothalo(struct LampRen *lar, ShadeInput *shi, float *intens)
|
|
{
|
|
double a, b, c, disc, nray[3], npos[3];
|
|
float t0, t1 = 0.0, t2= 0.0, t3, haint;
|
|
float p1[3], p2[3], ladist, maxz = 0.0, maxy = 0.0;
|
|
int snijp, doclip=1, use_yco=0;
|
|
int ok1=0, ok2=0;
|
|
|
|
*intens= 0.0;
|
|
haint= lar->haint;
|
|
|
|
if(R.r.mode & R_ORTHO) {
|
|
/* camera pos (view vector) cannot be used... */
|
|
/* camera position (cox,coy,0) rotate around lamp */
|
|
p1[0]= shi->co[0]-lar->co[0];
|
|
p1[1]= shi->co[1]-lar->co[1];
|
|
p1[2]= -lar->co[2];
|
|
MTC_Mat3MulVecfl(lar->imat, p1);
|
|
VECCOPY(npos, p1); // npos is double!
|
|
}
|
|
else {
|
|
VECCOPY(npos, lar->sh_invcampos); /* in initlamp calculated */
|
|
}
|
|
|
|
/* rotate view */
|
|
VECCOPY(nray, shi->view);
|
|
MTC_Mat3MulVecd(lar->imat, nray);
|
|
|
|
if(R.wrld.mode & WO_MIST) {
|
|
/* patchy... */
|
|
haint *= mistfactor(-lar->co[2], lar->co);
|
|
if(haint==0.0) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
|
|
/* rotate maxz */
|
|
if(shi->co[2]==0.0) doclip= 0; /* for when halo at sky */
|
|
else {
|
|
p1[0]= shi->co[0]-lar->co[0];
|
|
p1[1]= shi->co[1]-lar->co[1];
|
|
p1[2]= shi->co[2]-lar->co[2];
|
|
|
|
maxz= lar->imat[0][2]*p1[0]+lar->imat[1][2]*p1[1]+lar->imat[2][2]*p1[2];
|
|
maxz*= lar->sh_zfac;
|
|
maxy= lar->imat[0][1]*p1[0]+lar->imat[1][1]*p1[1]+lar->imat[2][1]*p1[2];
|
|
|
|
if( fabs(nray[2]) <0.000001 ) use_yco= 1;
|
|
}
|
|
|
|
/* scale z to make sure volume is normalized */
|
|
nray[2]*= lar->sh_zfac;
|
|
/* nray does not need normalization */
|
|
|
|
ladist= lar->sh_zfac*lar->dist;
|
|
|
|
/* solve */
|
|
a = nray[0] * nray[0] + nray[1] * nray[1] - nray[2]*nray[2];
|
|
b = nray[0] * npos[0] + nray[1] * npos[1] - nray[2]*npos[2];
|
|
c = npos[0] * npos[0] + npos[1] * npos[1] - npos[2]*npos[2];
|
|
|
|
snijp= 0;
|
|
if (fabs(a) < 0.00000001) {
|
|
/*
|
|
* Only one intersection point...
|
|
*/
|
|
return;
|
|
}
|
|
else {
|
|
disc = b*b - a*c;
|
|
|
|
if(disc==0.0) {
|
|
t1=t2= (-b)/ a;
|
|
snijp= 2;
|
|
}
|
|
else if (disc > 0.0) {
|
|
disc = sqrt(disc);
|
|
t1 = (-b + disc) / a;
|
|
t2 = (-b - disc) / a;
|
|
snijp= 2;
|
|
}
|
|
}
|
|
if(snijp==2) {
|
|
/* sort */
|
|
if(t1>t2) {
|
|
a= t1; t1= t2; t2= a;
|
|
}
|
|
|
|
/* z of intersection points with diabolo */
|
|
p1[2]= npos[2] + t1*nray[2];
|
|
p2[2]= npos[2] + t2*nray[2];
|
|
|
|
/* evaluate both points */
|
|
if(p1[2]<=0.0) ok1= 1;
|
|
if(p2[2]<=0.0 && t1!=t2) ok2= 1;
|
|
|
|
/* at least 1 point with negative z */
|
|
if(ok1==0 && ok2==0) return;
|
|
|
|
/* intersction point with -ladist, the bottom of the cone */
|
|
if(use_yco==0) {
|
|
t3= (-ladist-npos[2])/nray[2];
|
|
|
|
/* de we have to replace one of the intersection points? */
|
|
if(ok1) {
|
|
if(p1[2]<-ladist) t1= t3;
|
|
}
|
|
else {
|
|
ok1= 1;
|
|
t1= t3;
|
|
}
|
|
if(ok2) {
|
|
if(p2[2]<-ladist) t2= t3;
|
|
}
|
|
else {
|
|
ok2= 1;
|
|
t2= t3;
|
|
}
|
|
}
|
|
else if(ok1==0 || ok2==0) return;
|
|
|
|
/* at least 1 visible interesction point */
|
|
if(t1<0.0 && t2<0.0) return;
|
|
|
|
if(t1<0.0) t1= 0.0;
|
|
if(t2<0.0) t2= 0.0;
|
|
|
|
if(t1==t2) return;
|
|
|
|
/* sort again to be sure */
|
|
if(t1>t2) {
|
|
a= t1; t1= t2; t2= a;
|
|
}
|
|
|
|
/* calculate t0: is the maximum visible z (when halo is intersected by face) */
|
|
if(doclip) {
|
|
if(use_yco==0) t0= (maxz-npos[2])/nray[2];
|
|
else t0= (maxy-npos[1])/nray[1];
|
|
|
|
if(t0<t1) return;
|
|
if(t0<t2) t2= t0;
|
|
}
|
|
|
|
/* calc points */
|
|
p1[0]= npos[0] + t1*nray[0];
|
|
p1[1]= npos[1] + t1*nray[1];
|
|
p1[2]= npos[2] + t1*nray[2];
|
|
p2[0]= npos[0] + t2*nray[0];
|
|
p2[1]= npos[1] + t2*nray[1];
|
|
p2[2]= npos[2] + t2*nray[2];
|
|
|
|
|
|
/* now we have 2 points, make three lengths with it */
|
|
|
|
a= sqrt(p1[0]*p1[0]+p1[1]*p1[1]+p1[2]*p1[2]);
|
|
b= sqrt(p2[0]*p2[0]+p2[1]*p2[1]+p2[2]*p2[2]);
|
|
c= VecLenf(p1, p2);
|
|
|
|
a/= ladist;
|
|
a= sqrt(a);
|
|
b/= ladist;
|
|
b= sqrt(b);
|
|
c/= ladist;
|
|
|
|
*intens= c*( (1.0-a)+(1.0-b) );
|
|
|
|
/* WATCH IT: do not clip a,b en c at 1.0, this gives nasty little overflows
|
|
at the edges (especially with narrow halos) */
|
|
if(*intens<=0.0) return;
|
|
|
|
/* soft area */
|
|
/* not needed because t0 has been used for p1/p2 as well */
|
|
/* if(doclip && t0<t2) { */
|
|
/* *intens *= (t0-t1)/(t2-t1); */
|
|
/* } */
|
|
|
|
*intens *= haint;
|
|
|
|
if(lar->shb && lar->shb->shadhalostep) {
|
|
*intens *= shadow_halo(lar, p1, p2);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
static void renderspothalo(ShadeInput *shi, float *col, float alpha)
|
|
{
|
|
GroupObject *go;
|
|
LampRen *lar;
|
|
float i;
|
|
|
|
if(alpha==0.0f) return;
|
|
|
|
for(go=R.lights.first; go; go= go->next) {
|
|
lar= go->lampren;
|
|
|
|
if(lar->type==LA_SPOT && (lar->mode & LA_HALO) && lar->haint>0) {
|
|
|
|
spothalo(lar, shi, &i);
|
|
if(i>0.0) {
|
|
col[3]+= i*alpha; // all premul
|
|
col[0]+= i*lar->r*alpha;
|
|
col[1]+= i*lar->g*alpha;
|
|
col[2]+= i*lar->b*alpha;
|
|
}
|
|
}
|
|
}
|
|
/* clip alpha, is needed for unified 'alpha threshold' (vanillaRenderPipe.c) */
|
|
if(col[3]>1.0) col[3]= 1.0;
|
|
}
|
|
|
|
|
|
|
|
/* also used in zbuf.c */
|
|
int count_mask(unsigned short mask)
|
|
{
|
|
if(R.samples)
|
|
return (R.samples->cmask[mask & 255]+R.samples->cmask[mask>>8]);
|
|
return 0;
|
|
}
|
|
|
|
static int calchalo_z(HaloRen *har, int zz)
|
|
{
|
|
|
|
if(har->type & HA_ONLYSKY) {
|
|
if(zz!=0x7FFFFFFF) zz= - 0x7FFFFF;
|
|
}
|
|
else {
|
|
zz= (zz>>8);
|
|
}
|
|
return zz;
|
|
}
|
|
|
|
static void halo_pixelstruct(HaloRen *har, float *rb, float dist, float xn, float yn, PixStr *ps)
|
|
{
|
|
float col[4], accol[4];
|
|
int amount, amountm, zz, flarec;
|
|
|
|
amount= 0;
|
|
accol[0]=accol[1]=accol[2]=accol[3]= 0.0;
|
|
flarec= har->flarec;
|
|
|
|
while(ps) {
|
|
amountm= count_mask(ps->mask);
|
|
amount+= amountm;
|
|
|
|
zz= calchalo_z(har, ps->z);
|
|
if(zz> har->zs) {
|
|
float fac;
|
|
|
|
shadeHaloFloat(har, col, zz, dist, xn, yn, flarec);
|
|
fac= ((float)amountm)/(float)R.osa;
|
|
accol[0]+= fac*col[0];
|
|
accol[1]+= fac*col[1];
|
|
accol[2]+= fac*col[2];
|
|
accol[3]+= fac*col[3];
|
|
flarec= 0;
|
|
}
|
|
|
|
ps= ps->next;
|
|
}
|
|
/* now do the sky sub-pixels */
|
|
amount= R.osa-amount;
|
|
if(amount) {
|
|
float fac;
|
|
|
|
shadeHaloFloat(har, col, 0x7FFFFF, dist, xn, yn, flarec);
|
|
fac= ((float)amount)/(float)R.osa;
|
|
accol[0]+= fac*col[0];
|
|
accol[1]+= fac*col[1];
|
|
accol[2]+= fac*col[2];
|
|
accol[3]+= fac*col[3];
|
|
}
|
|
col[0]= accol[0];
|
|
col[1]= accol[1];
|
|
col[2]= accol[2];
|
|
col[3]= accol[3];
|
|
|
|
addalphaAddfacFloat(rb, col, har->add);
|
|
|
|
}
|
|
|
|
static void halo_tile(RenderPart *pa, float *pass, unsigned int lay)
|
|
{
|
|
HaloRen *har = NULL;
|
|
rcti disprect= pa->disprect;
|
|
float dist, xsq, ysq, xn, yn, *rb;
|
|
float col[4];
|
|
long *rd= NULL;
|
|
int a, *rz, zz, y;
|
|
short minx, maxx, miny, maxy, x;
|
|
|
|
for(a=0; a<R.tothalo; a++) {
|
|
if((a & 255)==0) {
|
|
if(R.test_break() ) break;
|
|
har= R.bloha[a>>8];
|
|
}
|
|
else har++;
|
|
|
|
/* layer test, clip halo with y */
|
|
if((har->lay & lay)==0);
|
|
else if(disprect.ymin > har->maxy);
|
|
else if(disprect.ymax < har->miny);
|
|
else {
|
|
|
|
minx= floor(har->xs-har->rad);
|
|
maxx= ceil(har->xs+har->rad);
|
|
|
|
if(disprect.xmin > maxx);
|
|
else if(disprect.xmax < minx);
|
|
else {
|
|
|
|
minx= MAX2(minx, disprect.xmin);
|
|
maxx= MIN2(maxx, disprect.xmax);
|
|
|
|
miny= MAX2(har->miny, disprect.ymin);
|
|
maxy= MIN2(har->maxy, disprect.ymax);
|
|
|
|
for(y=miny; y<maxy; y++) {
|
|
int rectofs= (y-disprect.ymin)*pa->rectx + (minx - disprect.xmin);
|
|
rb= pass + 4*rectofs;
|
|
rz= pa->rectz + rectofs;
|
|
|
|
if(pa->rectdaps)
|
|
rd= pa->rectdaps + rectofs;
|
|
|
|
yn= (y-har->ys)*R.ycor;
|
|
ysq= yn*yn;
|
|
|
|
for(x=minx; x<maxx; x++, rb+=4, rz++) {
|
|
xn= x- har->xs;
|
|
xsq= xn*xn;
|
|
dist= xsq+ysq;
|
|
if(dist<har->radsq) {
|
|
if(rd && *rd) {
|
|
halo_pixelstruct(har, rb, dist, xn, yn, (PixStr *)*rd);
|
|
}
|
|
else {
|
|
zz= calchalo_z(har, *rz);
|
|
if(zz> har->zs) {
|
|
shadeHaloFloat(har, col, zz, dist, xn, yn, har->flarec);
|
|
addalphaAddfacFloat(rb, col, har->add);
|
|
}
|
|
}
|
|
}
|
|
if(rd) rd++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void lamphalo_tile(RenderPart *pa, float *pass, unsigned int lay)
|
|
{
|
|
ShadeInput shi;
|
|
float zco, fac;
|
|
long *rd= pa->rectdaps;
|
|
int x, y, *rz= pa->rectz;
|
|
|
|
for(y=pa->disprect.ymin; y<pa->disprect.ymax; y++) {
|
|
for(x=pa->disprect.xmin; x<pa->disprect.xmax; x++, rz++, pass+=4) {
|
|
|
|
calc_view_vector(shi.view, x, y);
|
|
|
|
if(rd && *rd) {
|
|
PixStr *ps= (PixStr *)*rd;
|
|
int samp, totsamp= 0;
|
|
|
|
while(ps) {
|
|
/* inverse of zbuf calc: zbuf = MAXZ*hoco_z/hoco_w */
|
|
zco= ((float)ps->z)/2147483647.0f;
|
|
shi.co[2]= R.winmat[3][2]/( R.winmat[2][3]*zco - R.winmat[2][2] );
|
|
|
|
fac= shi.co[2]/shi.view[2];
|
|
shi.co[0]= fac*shi.view[0];
|
|
shi.co[1]= fac*shi.view[1];
|
|
|
|
totsamp+= samp= count_mask(ps->mask);
|
|
fac= ((float)samp)/(float)R.osa;
|
|
renderspothalo(&shi, pass, fac);
|
|
ps= ps->next;
|
|
}
|
|
if(totsamp<R.osa) {
|
|
fac= ((float)R.osa-totsamp)/(float)R.osa;
|
|
shi.co[2]= 0.0f;
|
|
renderspothalo(&shi, pass, fac);
|
|
}
|
|
|
|
}
|
|
else {
|
|
/* inverse of zbuf calc: zbuf = MAXZ*hoco_z/hoco_w */
|
|
zco= ((float)*rz)/2147483647.0f;
|
|
zco= shi.co[2]= R.winmat[3][2]/( R.winmat[2][3]*zco - R.winmat[2][2] );
|
|
fac= shi.co[2]/shi.view[2];
|
|
shi.co[0]= fac*shi.view[0];
|
|
shi.co[1]= fac*shi.view[1];
|
|
|
|
renderspothalo(&shi, pass, 1.0);
|
|
}
|
|
|
|
if(rd) rd++;
|
|
}
|
|
if(y&1)
|
|
if(R.test_break()) break;
|
|
}
|
|
}
|
|
|
|
/* ---------------- shaders ----------------------- */
|
|
|
|
static double Normalise_d(double *n)
|
|
{
|
|
double d;
|
|
|
|
d= n[0]*n[0]+n[1]*n[1]+n[2]*n[2];
|
|
|
|
if(d>0.00000000000000001) {
|
|
d= sqrt(d);
|
|
|
|
n[0]/=d;
|
|
n[1]/=d;
|
|
n[2]/=d;
|
|
} else {
|
|
n[0]=n[1]=n[2]= 0.0;
|
|
d= 0.0;
|
|
}
|
|
return d;
|
|
}
|
|
|
|
/* mix of 'real' fresnel and allowing control. grad defines blending gradient */
|
|
float fresnel_fac(float *view, float *vn, float grad, float fac)
|
|
{
|
|
float t1, t2;
|
|
|
|
if(fac==0.0) return 1.0;
|
|
|
|
t1= (view[0]*vn[0] + view[1]*vn[1] + view[2]*vn[2]);
|
|
if(t1>0.0) t2= 1.0+t1;
|
|
else t2= 1.0-t1;
|
|
|
|
t2= grad + (1.0-grad)*pow(t2, fac);
|
|
|
|
if(t2<0.0) return 0.0;
|
|
else if(t2>1.0) return 1.0;
|
|
return t2;
|
|
}
|
|
|
|
static double saacos_d(double fac)
|
|
{
|
|
if(fac<= -1.0f) return M_PI;
|
|
else if(fac>=1.0f) return 0.0;
|
|
else return acos(fac);
|
|
}
|
|
|
|
/* Stoke's form factor. Need doubles here for extreme small area sizes */
|
|
static float area_lamp_energy(float *co, float *vn, LampRen *lar)
|
|
{
|
|
double fac;
|
|
double vec[4][3]; /* vectors of rendered co to vertices lamp */
|
|
double cross[4][3]; /* cross products of this */
|
|
double rad[4]; /* angles between vecs */
|
|
|
|
VECSUB(vec[0], co, lar->area[0]);
|
|
VECSUB(vec[1], co, lar->area[1]);
|
|
VECSUB(vec[2], co, lar->area[2]);
|
|
VECSUB(vec[3], co, lar->area[3]);
|
|
|
|
Normalise_d(vec[0]);
|
|
Normalise_d(vec[1]);
|
|
Normalise_d(vec[2]);
|
|
Normalise_d(vec[3]);
|
|
|
|
/* cross product */
|
|
CROSS(cross[0], vec[0], vec[1]);
|
|
CROSS(cross[1], vec[1], vec[2]);
|
|
CROSS(cross[2], vec[2], vec[3]);
|
|
CROSS(cross[3], vec[3], vec[0]);
|
|
|
|
Normalise_d(cross[0]);
|
|
Normalise_d(cross[1]);
|
|
Normalise_d(cross[2]);
|
|
Normalise_d(cross[3]);
|
|
|
|
/* angles */
|
|
rad[0]= vec[0][0]*vec[1][0]+ vec[0][1]*vec[1][1]+ vec[0][2]*vec[1][2];
|
|
rad[1]= vec[1][0]*vec[2][0]+ vec[1][1]*vec[2][1]+ vec[1][2]*vec[2][2];
|
|
rad[2]= vec[2][0]*vec[3][0]+ vec[2][1]*vec[3][1]+ vec[2][2]*vec[3][2];
|
|
rad[3]= vec[3][0]*vec[0][0]+ vec[3][1]*vec[0][1]+ vec[3][2]*vec[0][2];
|
|
|
|
rad[0]= saacos_d(rad[0]);
|
|
rad[1]= saacos_d(rad[1]);
|
|
rad[2]= saacos_d(rad[2]);
|
|
rad[3]= saacos_d(rad[3]);
|
|
|
|
/* Stoke formula */
|
|
fac= rad[0]*(vn[0]*cross[0][0]+ vn[1]*cross[0][1]+ vn[2]*cross[0][2]);
|
|
fac+= rad[1]*(vn[0]*cross[1][0]+ vn[1]*cross[1][1]+ vn[2]*cross[1][2]);
|
|
fac+= rad[2]*(vn[0]*cross[2][0]+ vn[1]*cross[2][1]+ vn[2]*cross[2][2]);
|
|
fac+= rad[3]*(vn[0]*cross[3][0]+ vn[1]*cross[3][1]+ vn[2]*cross[3][2]);
|
|
|
|
if(fac<=0.0) return 0.0;
|
|
return pow(fac*lar->areasize, lar->k); // corrected for buttons size and lar->dist^2
|
|
}
|
|
|
|
static float spec(float inp, int hard)
|
|
{
|
|
float b1;
|
|
|
|
if(inp>=1.0) return 1.0;
|
|
else if (inp<=0.0) return 0.0;
|
|
|
|
b1= inp*inp;
|
|
/* avoid FPE */
|
|
if(b1<0.01) b1= 0.01;
|
|
|
|
if((hard & 1)==0) inp= 1.0;
|
|
if(hard & 2) inp*= b1;
|
|
b1*= b1;
|
|
if(hard & 4) inp*= b1;
|
|
b1*= b1;
|
|
if(hard & 8) inp*= b1;
|
|
b1*= b1;
|
|
if(hard & 16) inp*= b1;
|
|
b1*= b1;
|
|
|
|
/* avoid FPE */
|
|
if(b1<0.001) b1= 0.0;
|
|
|
|
if(hard & 32) inp*= b1;
|
|
b1*= b1;
|
|
if(hard & 64) inp*=b1;
|
|
b1*= b1;
|
|
if(hard & 128) inp*=b1;
|
|
|
|
if(b1<0.001) b1= 0.0;
|
|
|
|
if(hard & 256) {
|
|
b1*= b1;
|
|
inp*=b1;
|
|
}
|
|
|
|
return inp;
|
|
}
|
|
|
|
static float Phong_Spec( float *n, float *l, float *v, int hard, int tangent )
|
|
{
|
|
float h[3];
|
|
float rslt;
|
|
|
|
h[0] = l[0] + v[0];
|
|
h[1] = l[1] + v[1];
|
|
h[2] = l[2] + v[2];
|
|
Normalise(h);
|
|
|
|
rslt = h[0]*n[0] + h[1]*n[1] + h[2]*n[2];
|
|
if(tangent) rslt= sasqrt(1.0 - rslt*rslt);
|
|
|
|
if( rslt > 0.0 ) rslt= spec(rslt, hard);
|
|
else rslt = 0.0;
|
|
|
|
return rslt;
|
|
}
|
|
|
|
|
|
/* reduced cook torrance spec (for off-specular peak) */
|
|
static float CookTorr_Spec(float *n, float *l, float *v, int hard, int tangent)
|
|
{
|
|
float i, nh, nv, h[3];
|
|
|
|
h[0]= v[0]+l[0];
|
|
h[1]= v[1]+l[1];
|
|
h[2]= v[2]+l[2];
|
|
Normalise(h);
|
|
|
|
nh= n[0]*h[0]+n[1]*h[1]+n[2]*h[2];
|
|
if(tangent) nh= sasqrt(1.0 - nh*nh);
|
|
else if(nh<0.0) return 0.0;
|
|
|
|
nv= n[0]*v[0]+n[1]*v[1]+n[2]*v[2];
|
|
if(tangent) nv= sasqrt(1.0 - nv*nv);
|
|
else if(nv<0.0) nv= 0.0;
|
|
|
|
i= spec(nh, hard);
|
|
|
|
i= i/(0.1+nv);
|
|
return i;
|
|
}
|
|
|
|
/* Blinn spec */
|
|
static float Blinn_Spec(float *n, float *l, float *v, float refrac, float spec_power, int tangent)
|
|
{
|
|
float i, nh, nv, nl, vh, h[3];
|
|
float a, b, c, g=0.0, p, f, ang;
|
|
|
|
if(refrac < 1.0) return 0.0;
|
|
if(spec_power == 0.0) return 0.0;
|
|
|
|
/* conversion from 'hardness' (1-255) to 'spec_power' (50 maps at 0.1) */
|
|
if(spec_power<100.0)
|
|
spec_power= sqrt(1.0/spec_power);
|
|
else spec_power= 10.0/spec_power;
|
|
|
|
h[0]= v[0]+l[0];
|
|
h[1]= v[1]+l[1];
|
|
h[2]= v[2]+l[2];
|
|
Normalise(h);
|
|
|
|
nh= n[0]*h[0]+n[1]*h[1]+n[2]*h[2]; /* Dot product between surface normal and half-way vector */
|
|
if(tangent) nh= sasqrt(1.0f - nh*nh);
|
|
else if(nh<0.0) return 0.0;
|
|
|
|
nv= n[0]*v[0]+n[1]*v[1]+n[2]*v[2]; /* Dot product between surface normal and view vector */
|
|
if(tangent) nv= sasqrt(1.0f - nv*nv);
|
|
if(nv<=0.0) nv= 0.01; /* hrms... */
|
|
|
|
nl= n[0]*l[0]+n[1]*l[1]+n[2]*l[2]; /* Dot product between surface normal and light vector */
|
|
if(tangent) nl= sasqrt(1.0f - nl*nl);
|
|
if(nl<=0.0) {
|
|
return 0.0;
|
|
}
|
|
|
|
vh= v[0]*h[0]+v[1]*h[1]+v[2]*h[2]; /* Dot product between view vector and half-way vector */
|
|
if(vh<=0.0) vh= 0.01;
|
|
|
|
a = 1.0;
|
|
b = (2.0*nh*nv)/vh;
|
|
c = (2.0*nh*nl)/vh;
|
|
|
|
if( a < b && a < c ) g = a;
|
|
else if( b < a && b < c ) g = b;
|
|
else if( c < a && c < b ) g = c;
|
|
|
|
p = sqrt( (double)((refrac * refrac)+(vh*vh)-1.0) );
|
|
f = (((p-vh)*(p-vh))/((p+vh)*(p+vh)))*(1+((((vh*(p+vh))-1.0)*((vh*(p+vh))-1.0))/(((vh*(p-vh))+1.0)*((vh*(p-vh))+1.0))));
|
|
ang = saacos(nh);
|
|
|
|
i= f * g * exp((double)(-(ang*ang) / (2.0*spec_power*spec_power)));
|
|
if(i<0.0) i= 0.0;
|
|
|
|
return i;
|
|
}
|
|
|
|
/* cartoon render spec */
|
|
static float Toon_Spec( float *n, float *l, float *v, float size, float smooth, int tangent)
|
|
{
|
|
float h[3];
|
|
float ang;
|
|
float rslt;
|
|
|
|
h[0] = l[0] + v[0];
|
|
h[1] = l[1] + v[1];
|
|
h[2] = l[2] + v[2];
|
|
Normalise(h);
|
|
|
|
rslt = h[0]*n[0] + h[1]*n[1] + h[2]*n[2];
|
|
if(tangent) rslt = sasqrt(1.0f - rslt*rslt);
|
|
|
|
ang = saacos( rslt );
|
|
|
|
if( ang < size ) rslt = 1.0;
|
|
else if( ang >= (size + smooth) || smooth == 0.0 ) rslt = 0.0;
|
|
else rslt = 1.0 - ((ang - size) / smooth);
|
|
|
|
return rslt;
|
|
}
|
|
|
|
/* Ward isotropic gaussian spec */
|
|
static float WardIso_Spec( float *n, float *l, float *v, float rms, int tangent)
|
|
{
|
|
float i, nh, nv, nl, h[3], angle, alpha;
|
|
|
|
|
|
/* half-way vector */
|
|
h[0] = l[0] + v[0];
|
|
h[1] = l[1] + v[1];
|
|
h[2] = l[2] + v[2];
|
|
Normalise(h);
|
|
|
|
nh = n[0]*h[0]+n[1]*h[1]+n[2]*h[2]; /* Dot product between surface normal and half-way vector */
|
|
if(tangent) nh = sasqrt(1.0f - nh*nh);
|
|
if(nh<=0.0) nh = 0.001f;
|
|
|
|
nv = n[0]*v[0]+n[1]*v[1]+n[2]*v[2]; /* Dot product between surface normal and view vector */
|
|
if(tangent) nv = sasqrt(1.0f - nv*nv);
|
|
if(nv<=0.0) nv = 0.001f;
|
|
|
|
nl = n[0]*l[0]+n[1]*l[1]+n[2]*l[2]; /* Dot product between surface normal and light vector */
|
|
if(tangent) nl = sasqrt(1.0f - nl*nl);
|
|
if(nl<=0.0) nl = 0.001;
|
|
|
|
angle = tan(saacos(nh));
|
|
alpha = MAX2(rms,0.001);
|
|
|
|
i= nl * (1.0/(4*M_PI*alpha*alpha)) * (exp( -(angle*angle)/(alpha*alpha))/(sqrt(nv*nl)));
|
|
|
|
return i;
|
|
}
|
|
|
|
/* cartoon render diffuse */
|
|
static float Toon_Diff( float *n, float *l, float *v, float size, float smooth )
|
|
{
|
|
float rslt, ang;
|
|
|
|
rslt = n[0]*l[0] + n[1]*l[1] + n[2]*l[2];
|
|
|
|
ang = saacos( (double)(rslt) );
|
|
|
|
if( ang < size ) rslt = 1.0;
|
|
else if( ang >= (size + smooth) || smooth == 0.0 ) rslt = 0.0;
|
|
else rslt = 1.0 - ((ang - size) / smooth);
|
|
|
|
return rslt;
|
|
}
|
|
|
|
/* Oren Nayar diffuse */
|
|
|
|
/* 'nl' is either dot product, or return value of area light */
|
|
/* in latter case, only last multiplication uses 'nl' */
|
|
static float OrenNayar_Diff(float nl, float *n, float *l, float *v, float rough )
|
|
{
|
|
float i, nh, nv, vh, realnl, h[3];
|
|
float a, b, t, A, B;
|
|
float Lit_A, View_A, Lit_B[3], View_B[3];
|
|
|
|
h[0]= v[0]+l[0];
|
|
h[1]= v[1]+l[1];
|
|
h[2]= v[2]+l[2];
|
|
Normalise(h);
|
|
|
|
nh= n[0]*h[0]+n[1]*h[1]+n[2]*h[2]; /* Dot product between surface normal and half-way vector */
|
|
if(nh<0.0) nh = 0.0;
|
|
|
|
nv= n[0]*v[0]+n[1]*v[1]+n[2]*v[2]; /* Dot product between surface normal and view vector */
|
|
if(nv<=0.0) nv= 0.0;
|
|
|
|
realnl= n[0]*l[0]+n[1]*l[1]+n[2]*l[2]; /* Dot product between surface normal and light vector */
|
|
if(realnl<=0.0) return 0.0;
|
|
if(nl<0.0) return 0.0; /* value from area light */
|
|
|
|
vh= v[0]*h[0]+v[1]*h[1]+v[2]*h[2]; /* Dot product between view vector and halfway vector */
|
|
if(vh<=0.0) vh= 0.0;
|
|
|
|
Lit_A = saacos(realnl);
|
|
View_A = saacos( nv );
|
|
|
|
Lit_B[0] = l[0] - (realnl * n[0]);
|
|
Lit_B[1] = l[1] - (realnl * n[1]);
|
|
Lit_B[2] = l[2] - (realnl * n[2]);
|
|
Normalise( Lit_B );
|
|
|
|
View_B[0] = v[0] - (nv * n[0]);
|
|
View_B[1] = v[1] - (nv * n[1]);
|
|
View_B[2] = v[2] - (nv * n[2]);
|
|
Normalise( View_B );
|
|
|
|
t = Lit_B[0]*View_B[0] + Lit_B[1]*View_B[1] + Lit_B[2]*View_B[2];
|
|
if( t < 0 ) t = 0;
|
|
|
|
if( Lit_A > View_A ) {
|
|
a = Lit_A;
|
|
b = View_A;
|
|
}
|
|
else {
|
|
a = View_A;
|
|
b = Lit_A;
|
|
}
|
|
|
|
A = 1 - (0.5 * ((rough * rough) / ((rough * rough) + 0.33)));
|
|
B = 0.45 * ((rough * rough) / ((rough * rough) + 0.09));
|
|
|
|
b*= 0.95; /* prevent tangens from shooting to inf, 'nl' can be not a dot product here. */
|
|
/* overflow only happens with extreme size area light, and higher roughness */
|
|
i = nl * ( A + ( B * t * sin(a) * tan(b) ) );
|
|
|
|
return i;
|
|
}
|
|
|
|
/* Minnaert diffuse */
|
|
static float Minnaert_Diff(float nl, float *n, float *v, float darkness)
|
|
{
|
|
|
|
float i, nv;
|
|
|
|
/* nl = dot product between surface normal and light vector */
|
|
if (nl <= 0.0)
|
|
return 0;
|
|
|
|
/* nv = dot product between surface normal and view vector */
|
|
nv = n[0]*v[0]+n[1]*v[1]+n[2]*v[2];
|
|
if (nv < 0.0)
|
|
nv = 0;
|
|
|
|
if (darkness <= 1)
|
|
i = nl * pow(MAX2(nv*nl, 0.1), (darkness - 1) ); /*The Real model*/
|
|
else
|
|
i = nl * pow( (1.001 - nv), (darkness - 1) ); /*Nvidia model*/
|
|
|
|
return i;
|
|
}
|
|
|
|
static float Fresnel_Diff(float *vn, float *lv, float *view, float fac_i, float fac)
|
|
{
|
|
return fresnel_fac(lv, vn, fac_i, fac);
|
|
}
|
|
|
|
/* --------------------------------------------- */
|
|
/* also called from texture.c */
|
|
void calc_R_ref(ShadeInput *shi)
|
|
{
|
|
float i;
|
|
|
|
/* shi->vn dot shi->view */
|
|
i= -2*(shi->vn[0]*shi->view[0]+shi->vn[1]*shi->view[1]+shi->vn[2]*shi->view[2]);
|
|
|
|
shi->ref[0]= (shi->view[0]+i*shi->vn[0]);
|
|
shi->ref[1]= (shi->view[1]+i*shi->vn[1]);
|
|
shi->ref[2]= (shi->view[2]+i*shi->vn[2]);
|
|
if(shi->osatex) {
|
|
if(shi->vlr->flag & R_SMOOTH) {
|
|
i= -2*( (shi->vn[0]+shi->dxno[0])*(shi->view[0]+shi->dxview) +
|
|
(shi->vn[1]+shi->dxno[1])*shi->view[1]+ (shi->vn[2]+shi->dxno[2])*shi->view[2] );
|
|
|
|
shi->dxref[0]= shi->ref[0]- ( shi->view[0]+shi->dxview+i*(shi->vn[0]+shi->dxno[0]));
|
|
shi->dxref[1]= shi->ref[1]- (shi->view[1]+ i*(shi->vn[1]+shi->dxno[1]));
|
|
shi->dxref[2]= shi->ref[2]- (shi->view[2]+ i*(shi->vn[2]+shi->dxno[2]));
|
|
|
|
i= -2*( (shi->vn[0]+shi->dyno[0])*shi->view[0]+
|
|
(shi->vn[1]+shi->dyno[1])*(shi->view[1]+shi->dyview)+ (shi->vn[2]+shi->dyno[2])*shi->view[2] );
|
|
|
|
shi->dyref[0]= shi->ref[0]- (shi->view[0]+ i*(shi->vn[0]+shi->dyno[0]));
|
|
shi->dyref[1]= shi->ref[1]- (shi->view[1]+shi->dyview+i*(shi->vn[1]+shi->dyno[1]));
|
|
shi->dyref[2]= shi->ref[2]- (shi->view[2]+ i*(shi->vn[2]+shi->dyno[2]));
|
|
|
|
}
|
|
else {
|
|
|
|
i= -2*( shi->vn[0]*(shi->view[0]+shi->dxview) +
|
|
shi->vn[1]*shi->view[1]+ shi->vn[2]*shi->view[2] );
|
|
|
|
shi->dxref[0]= shi->ref[0]- (shi->view[0]+shi->dxview+i*shi->vn[0]);
|
|
shi->dxref[1]= shi->ref[1]- (shi->view[1]+ i*shi->vn[1]);
|
|
shi->dxref[2]= shi->ref[2]- (shi->view[2]+ i*shi->vn[2]);
|
|
|
|
i= -2*( shi->vn[0]*shi->view[0]+
|
|
shi->vn[1]*(shi->view[1]+shi->dyview)+ shi->vn[2]*shi->view[2] );
|
|
|
|
shi->dyref[0]= shi->ref[0]- (shi->view[0]+ i*shi->vn[0]);
|
|
shi->dyref[1]= shi->ref[1]- (shi->view[1]+shi->dyview+i*shi->vn[1]);
|
|
shi->dyref[2]= shi->ref[2]- (shi->view[2]+ i*shi->vn[2]);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/* called from ray.c */
|
|
void shade_color(ShadeInput *shi, ShadeResult *shr)
|
|
{
|
|
Material *ma= shi->mat;
|
|
|
|
if(ma->mode & (MA_VERTEXCOLP|MA_FACETEXTURE)) {
|
|
shi->r= shi->vcol[0];
|
|
shi->g= shi->vcol[1];
|
|
shi->b= shi->vcol[2];
|
|
}
|
|
|
|
if(ma->texco) {
|
|
if(ma->mode & (MA_VERTEXCOLP|MA_FACETEXTURE)) {
|
|
shi->r= shi->vcol[0];
|
|
shi->g= shi->vcol[1];
|
|
shi->b= shi->vcol[2];
|
|
}
|
|
do_material_tex(shi);
|
|
}
|
|
|
|
if(ma->mode & (MA_ZTRA|MA_RAYTRANSP)) {
|
|
if(ma->fresnel_tra!=0.0)
|
|
shi->alpha*= fresnel_fac(shi->view, shi->vn, ma->fresnel_tra_i, ma->fresnel_tra);
|
|
}
|
|
|
|
shr->diff[0]= shi->r;
|
|
shr->diff[1]= shi->g;
|
|
shr->diff[2]= shi->b;
|
|
shr->alpha= shi->alpha;
|
|
}
|
|
|
|
/* ramp for at end of shade */
|
|
static void ramp_diffuse_result(float *diff, ShadeInput *shi)
|
|
{
|
|
Material *ma= shi->mat;
|
|
float col[4], fac=0;
|
|
|
|
if(ma->ramp_col) {
|
|
if(ma->rampin_col==MA_RAMP_IN_RESULT) {
|
|
|
|
fac= 0.3*diff[0] + 0.58*diff[1] + 0.12*diff[2];
|
|
do_colorband(ma->ramp_col, fac, col);
|
|
|
|
/* blending method */
|
|
fac= col[3]*ma->rampfac_col;
|
|
|
|
ramp_blend(ma->rampblend_col, diff, diff+1, diff+2, fac, col);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* r,g,b denote energy, ramp is used with different values to make new material color */
|
|
static void add_to_diffuse(float *diff, ShadeInput *shi, float is, float r, float g, float b)
|
|
{
|
|
Material *ma= shi->mat;
|
|
float col[4], colt[3], fac=0;
|
|
|
|
if(ma->ramp_col && (ma->mode & MA_RAMP_COL)) {
|
|
|
|
/* MA_RAMP_IN_RESULT is exceptional */
|
|
if(ma->rampin_col==MA_RAMP_IN_RESULT) {
|
|
// normal add
|
|
diff[0] += r * shi->r;
|
|
diff[1] += g * shi->g;
|
|
diff[2] += b * shi->b;
|
|
}
|
|
else {
|
|
/* input */
|
|
switch(ma->rampin_col) {
|
|
case MA_RAMP_IN_ENERGY:
|
|
fac= 0.3*r + 0.58*g + 0.12*b;
|
|
break;
|
|
case MA_RAMP_IN_SHADER:
|
|
fac= is;
|
|
break;
|
|
case MA_RAMP_IN_NOR:
|
|
fac= shi->view[0]*shi->vn[0] + shi->view[1]*shi->vn[1] + shi->view[2]*shi->vn[2];
|
|
break;
|
|
}
|
|
|
|
do_colorband(ma->ramp_col, fac, col);
|
|
|
|
/* blending method */
|
|
fac= col[3]*ma->rampfac_col;
|
|
colt[0]= shi->r;
|
|
colt[1]= shi->g;
|
|
colt[2]= shi->b;
|
|
|
|
ramp_blend(ma->rampblend_col, colt, colt+1, colt+2, fac, col);
|
|
|
|
/* output to */
|
|
diff[0] += r * colt[0];
|
|
diff[1] += g * colt[1];
|
|
diff[2] += b * colt[2];
|
|
}
|
|
}
|
|
else {
|
|
diff[0] += r * shi->r;
|
|
diff[1] += g * shi->g;
|
|
diff[2] += b * shi->b;
|
|
}
|
|
}
|
|
|
|
static void ramp_spec_result(float *specr, float *specg, float *specb, ShadeInput *shi)
|
|
{
|
|
Material *ma= shi->mat;
|
|
float col[4];
|
|
float fac;
|
|
|
|
if(ma->ramp_spec && (ma->rampin_spec==MA_RAMP_IN_RESULT)) {
|
|
fac= 0.3*(*specr) + 0.58*(*specg) + 0.12*(*specb);
|
|
do_colorband(ma->ramp_spec, fac, col);
|
|
|
|
/* blending method */
|
|
fac= col[3]*ma->rampfac_spec;
|
|
|
|
ramp_blend(ma->rampblend_spec, specr, specg, specb, fac, col);
|
|
|
|
}
|
|
}
|
|
|
|
/* is = dot product shade, t = spec energy */
|
|
static void do_specular_ramp(ShadeInput *shi, float is, float t, float *spec)
|
|
{
|
|
Material *ma= shi->mat;
|
|
float col[4];
|
|
float fac=0.0;
|
|
|
|
spec[0]= shi->specr;
|
|
spec[1]= shi->specg;
|
|
spec[2]= shi->specb;
|
|
|
|
/* MA_RAMP_IN_RESULT is exception */
|
|
if(ma->ramp_spec && (ma->rampin_spec!=MA_RAMP_IN_RESULT)) {
|
|
|
|
/* input */
|
|
switch(ma->rampin_spec) {
|
|
case MA_RAMP_IN_ENERGY:
|
|
fac= t;
|
|
break;
|
|
case MA_RAMP_IN_SHADER:
|
|
fac= is;
|
|
break;
|
|
case MA_RAMP_IN_NOR:
|
|
fac= shi->view[0]*shi->vn[0] + shi->view[1]*shi->vn[1] + shi->view[2]*shi->vn[2];
|
|
break;
|
|
}
|
|
|
|
do_colorband(ma->ramp_spec, fac, col);
|
|
|
|
/* blending method */
|
|
fac= col[3]*ma->rampfac_spec;
|
|
|
|
ramp_blend(ma->rampblend_spec, spec, spec+1, spec+2, fac, col);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
static void ambient_occlusion(ShadeInput *shi, ShadeResult *shr)
|
|
{
|
|
float f, shadfac[4];
|
|
|
|
if((R.wrld.mode & WO_AMB_OCC) && (R.r.mode & R_RAYTRACE) && shi->amb!=0.0) {
|
|
ray_ao(shi, shadfac);
|
|
|
|
if(R.wrld.aocolor==WO_AOPLAIN) {
|
|
if (R.wrld.aomix==WO_AOADDSUB) shadfac[3] = 2.0*shadfac[3]-1.0;
|
|
else if (R.wrld.aomix==WO_AOSUB) shadfac[3] = shadfac[3]-1.0;
|
|
|
|
f= R.wrld.aoenergy*shadfac[3]*shi->amb;
|
|
shr->ao[0]+= f;
|
|
shr->ao[1]+= f;
|
|
shr->ao[2]+= f;
|
|
}
|
|
else {
|
|
if (R.wrld.aomix==WO_AOADDSUB) {
|
|
shadfac[0] = 2.0*shadfac[0]-1.0;
|
|
shadfac[1] = 2.0*shadfac[1]-1.0;
|
|
shadfac[2] = 2.0*shadfac[2]-1.0;
|
|
}
|
|
else if (R.wrld.aomix==WO_AOSUB) {
|
|
shadfac[0] = shadfac[0]-1.0;
|
|
shadfac[1] = shadfac[1]-1.0;
|
|
shadfac[2] = shadfac[2]-1.0;
|
|
}
|
|
f= R.wrld.aoenergy*shi->amb;
|
|
shr->ao[0]+= f*shadfac[0];
|
|
shr->ao[1]+= f*shadfac[1];
|
|
shr->ao[2]+= f*shadfac[2];
|
|
}
|
|
}
|
|
}
|
|
|
|
/* function returns diff, spec and optional shadow */
|
|
/* if passrender it returns shadow color, otherwise it applies it to diffuse and spec */
|
|
static void shade_one_light(LampRen *lar, ShadeInput *shi, ShadeResult *shr, int passrender)
|
|
{
|
|
Material *ma= shi->mat;
|
|
VlakRen *vlr= shi->vlr;
|
|
float lv[3], lampdist, ld= 1.0f, lacol[3], shadfac[4];
|
|
float i, is, inp, i_noshad, *vn, *view, vnor[3], phongcorr;
|
|
|
|
vn= shi->vn;
|
|
view= shi->view;
|
|
|
|
/* lampdist calculation */
|
|
if(lar->type==LA_SUN || lar->type==LA_HEMI) {
|
|
VECCOPY(lv, lar->vec);
|
|
lampdist= 1.0;
|
|
}
|
|
else {
|
|
lv[0]= shi->co[0]-lar->co[0];
|
|
lv[1]= shi->co[1]-lar->co[1];
|
|
lv[2]= shi->co[2]-lar->co[2];
|
|
ld= sqrt(lv[0]*lv[0]+lv[1]*lv[1]+lv[2]*lv[2]);
|
|
lv[0]/= ld;
|
|
lv[1]/= ld;
|
|
lv[2]/= ld;
|
|
|
|
/* ld is re-used further on (texco's) */
|
|
if(lar->type==LA_AREA) {
|
|
lampdist= 1.0;
|
|
}
|
|
else {
|
|
if(lar->mode & LA_QUAD) {
|
|
float t= 1.0;
|
|
if(lar->ld1>0.0)
|
|
t= lar->dist/(lar->dist+lar->ld1*ld);
|
|
if(lar->ld2>0.0)
|
|
t*= lar->distkw/(lar->distkw+lar->ld2*ld*ld);
|
|
|
|
lampdist= t;
|
|
}
|
|
else {
|
|
lampdist= (lar->dist/(lar->dist+ld));
|
|
}
|
|
|
|
if(lar->mode & LA_SPHERE) {
|
|
float t= lar->dist - ld;
|
|
if(t<0.0) return;
|
|
|
|
t/= lar->dist;
|
|
lampdist*= (t);
|
|
}
|
|
}
|
|
}
|
|
|
|
lacol[0]= lar->r;
|
|
lacol[1]= lar->g;
|
|
lacol[2]= lar->b;
|
|
|
|
if(lar->type==LA_SPOT) {
|
|
float t, inpr;
|
|
|
|
if(lar->mode & LA_SQUARE) {
|
|
if(lv[0]*lar->vec[0]+lv[1]*lar->vec[1]+lv[2]*lar->vec[2]>0.0) {
|
|
float lvrot[3], x;
|
|
|
|
/* rotate view to lampspace */
|
|
VECCOPY(lvrot, lv);
|
|
MTC_Mat3MulVecfl(lar->imat, lvrot);
|
|
|
|
x= MAX2(fabs(lvrot[0]/lvrot[2]) , fabs(lvrot[1]/lvrot[2]));
|
|
/* 1.0/(sqrt(1+x*x)) is equivalent to cos(atan(x)) */
|
|
|
|
inpr= 1.0f/(sqrt(1.0f+x*x));
|
|
}
|
|
else inpr= 0.0;
|
|
}
|
|
else {
|
|
inpr= lv[0]*lar->vec[0]+lv[1]*lar->vec[1]+lv[2]*lar->vec[2];
|
|
}
|
|
|
|
t= lar->spotsi;
|
|
if(inpr<t) return;
|
|
else {
|
|
t= inpr-t;
|
|
i= 1.0;
|
|
if(t<lar->spotbl && lar->spotbl!=0.0) {
|
|
/* soft area */
|
|
i= t/lar->spotbl;
|
|
t= i*i;
|
|
inpr*= (3.0*t-2.0*t*i);
|
|
}
|
|
lampdist*=inpr;
|
|
}
|
|
|
|
if(lar->mode & LA_OSATEX) {
|
|
shi->osatex= 1; /* signal for multitex() */
|
|
|
|
shi->dxlv[0]= lv[0] - (shi->co[0]-lar->co[0]+shi->dxco[0])/ld;
|
|
shi->dxlv[1]= lv[1] - (shi->co[1]-lar->co[1]+shi->dxco[1])/ld;
|
|
shi->dxlv[2]= lv[2] - (shi->co[2]-lar->co[2]+shi->dxco[2])/ld;
|
|
|
|
shi->dylv[0]= lv[0] - (shi->co[0]-lar->co[0]+shi->dyco[0])/ld;
|
|
shi->dylv[1]= lv[1] - (shi->co[1]-lar->co[1]+shi->dyco[1])/ld;
|
|
shi->dylv[2]= lv[2] - (shi->co[2]-lar->co[2]+shi->dyco[2])/ld;
|
|
}
|
|
|
|
}
|
|
|
|
if(lar->mode & LA_TEXTURE) do_lamp_tex(lar, lv, shi, lacol);
|
|
|
|
/* dot product and reflectivity */
|
|
/* inp = dotproduct, is = shader result, i = lamp energy (with shadow) */
|
|
|
|
/* tangent case; calculate fake face normal, aligned with lampvector */
|
|
if(vlr->flag & R_TANGENT) {
|
|
float cross[3];
|
|
Crossf(cross, lv, vn);
|
|
Crossf(vnor, cross, vn);
|
|
vnor[0]= -vnor[0];vnor[1]= -vnor[1];vnor[2]= -vnor[2];
|
|
vn= vnor;
|
|
}
|
|
else if(ma->mode & MA_TANGENT_V) {
|
|
float cross[3];
|
|
Crossf(cross, lv, shi->tang);
|
|
Crossf(vnor, cross, shi->tang);
|
|
vnor[0]= -vnor[0];vnor[1]= -vnor[1];vnor[2]= -vnor[2];
|
|
vn= vnor;
|
|
}
|
|
|
|
inp= vn[0]*lv[0] + vn[1]*lv[1] + vn[2]*lv[2];
|
|
|
|
/* phong threshold to prevent backfacing faces having artefacts on ray shadow (terminator problem) */
|
|
if((ma->mode & MA_RAYBIAS) && (lar->mode & LA_SHAD_RAY) && (vlr->flag & R_SMOOTH)) {
|
|
float thresh= vlr->ob->smoothresh;
|
|
if(inp>thresh)
|
|
phongcorr= (inp-thresh)/(inp*(1.0-thresh));
|
|
else
|
|
phongcorr= 0.0;
|
|
}
|
|
else if(ma->sbias!=0.0f) {
|
|
if(inp>ma->sbias)
|
|
phongcorr= (inp-ma->sbias)/(inp*(1.0-ma->sbias));
|
|
else
|
|
phongcorr= 0.0;
|
|
}
|
|
else phongcorr= 1.0;
|
|
|
|
/* diffuse shaders */
|
|
if(lar->mode & LA_NO_DIFF) {
|
|
is= 0.0; // skip shaders
|
|
}
|
|
else if(lar->type==LA_HEMI) {
|
|
is= 0.5*inp + 0.5;
|
|
}
|
|
else {
|
|
|
|
if(lar->type==LA_AREA) {
|
|
/* single sided */
|
|
if(lv[0]*lar->vec[0]+lv[1]*lar->vec[1]+lv[2]*lar->vec[2]>0.0) {
|
|
inp= area_lamp_energy(shi->co, vn, lar);
|
|
}
|
|
else inp= 0.0;
|
|
}
|
|
|
|
/* diffuse shaders (oren nayer gets inp from area light) */
|
|
if(ma->diff_shader==MA_DIFF_ORENNAYAR) is= OrenNayar_Diff(inp, vn, lv, view, ma->roughness);
|
|
else if(ma->diff_shader==MA_DIFF_TOON) is= Toon_Diff(vn, lv, view, ma->param[0], ma->param[1]);
|
|
else if(ma->diff_shader==MA_DIFF_MINNAERT) is= Minnaert_Diff(inp, vn, view, ma->darkness);
|
|
else if(ma->diff_shader==MA_DIFF_FRESNEL) is= Fresnel_Diff(vn, lv, view, ma->param[0], ma->param[1]);
|
|
else is= inp; // Lambert
|
|
}
|
|
|
|
i= is*phongcorr;
|
|
|
|
if(i>0.0) {
|
|
i*= lampdist*shi->refl;
|
|
}
|
|
i_noshad= i;
|
|
|
|
vn= shi->vn; // bring back original vector, we use special specular shaders for tangent
|
|
if(ma->mode & MA_TANGENT_V)
|
|
vn= shi->tang;
|
|
|
|
/* init transp shadow */
|
|
shadfac[0]= shadfac[1]= shadfac[2]= shadfac[3]= 1.0;
|
|
|
|
/* shadow and spec, (lampdist==0 outside spot) */
|
|
if(lampdist> 0.0) {
|
|
|
|
if(i>0.0 && (R.r.mode & R_SHADOW)) {
|
|
if(ma->mode & MA_SHADOW) {
|
|
if(lar->type==LA_HEMI); // no shadow
|
|
else {
|
|
if(lar->shb) {
|
|
shadfac[3] = testshadowbuf(lar->shb, shi->co, shi->dxco, shi->dyco, inp);
|
|
}
|
|
else if(lar->mode & LA_SHAD_RAY) {
|
|
ray_shadow(shi, lar, shadfac);
|
|
}
|
|
|
|
/* warning, here it skips the loop */
|
|
if(lar->mode & LA_ONLYSHADOW) {
|
|
|
|
shadfac[3]= i*lar->energy*(1.0-shadfac[3]);
|
|
shr->diff[0] -= shadfac[3]*shi->r;
|
|
shr->diff[1] -= shadfac[3]*shi->g;
|
|
shr->diff[2] -= shadfac[3]*shi->b;
|
|
return;
|
|
}
|
|
|
|
if(passrender==0)
|
|
if(shadfac[3]==0.0) return;
|
|
|
|
i*= shadfac[3];
|
|
}
|
|
}
|
|
}
|
|
|
|
/* in case 'no diffuse' we still do most calculus, spec can be in shadow */
|
|
if(i>0.0 && !(lar->mode & LA_NO_DIFF)) {
|
|
if(ma->mode & MA_SHADOW_TRA)
|
|
add_to_diffuse(shr->diff, shi, is, i*shadfac[0]*lacol[0], i*shadfac[1]*lacol[1], i*shadfac[2]*lacol[2]);
|
|
else
|
|
add_to_diffuse(shr->diff, shi, is, i*lacol[0], i*lacol[1], i*lacol[2]);
|
|
}
|
|
if(passrender && i_noshad>0.0 && !(lar->mode & LA_NO_DIFF)) {
|
|
/* while passrender we store shadowless diffuse in shr->shad, so we can subtract */
|
|
if(ma->mode & MA_SHADOW_TRA)
|
|
add_to_diffuse(shr->shad, shi, is, i_noshad*shadfac[0]*lacol[0], i_noshad*shadfac[1]*lacol[1], i_noshad*shadfac[2]*lacol[2]);
|
|
else
|
|
add_to_diffuse(shr->shad, shi, is, i_noshad*lacol[0], i_noshad*lacol[1], i_noshad*lacol[2]);
|
|
}
|
|
|
|
/* specularity */
|
|
if(shadfac[3]>0.0 && shi->spec!=0.0 && !(lar->mode & LA_NO_SPEC)) {
|
|
|
|
if(lar->type==LA_HEMI) {
|
|
float t;
|
|
/* hemi uses no spec shaders (yet) */
|
|
|
|
lv[0]+= view[0];
|
|
lv[1]+= view[1];
|
|
lv[2]+= view[2];
|
|
|
|
Normalise(lv);
|
|
|
|
t= vn[0]*lv[0]+vn[1]*lv[1]+vn[2]*lv[2];
|
|
|
|
if(lar->type==LA_HEMI) {
|
|
t= 0.5*t+0.5;
|
|
}
|
|
|
|
t= shadfac[3]*shi->spec*spec(t, shi->har);
|
|
|
|
shr->spec[0]+= t*(lacol[0] * shi->specr);
|
|
shr->spec[1]+= t*(lacol[1] * shi->specg);
|
|
shr->spec[2]+= t*(lacol[2] * shi->specb);
|
|
}
|
|
else {
|
|
/* specular shaders */
|
|
float specfac, t;
|
|
|
|
if(ma->spec_shader==MA_SPEC_PHONG)
|
|
specfac= Phong_Spec(vn, lv, view, shi->har, (vlr->flag & R_TANGENT) || (ma->mode & MA_TANGENT_V));
|
|
else if(ma->spec_shader==MA_SPEC_COOKTORR)
|
|
specfac= CookTorr_Spec(vn, lv, view, shi->har, (vlr->flag & R_TANGENT) || (ma->mode & MA_TANGENT_V));
|
|
else if(ma->spec_shader==MA_SPEC_BLINN)
|
|
specfac= Blinn_Spec(vn, lv, view, ma->refrac, (float)shi->har, (vlr->flag & R_TANGENT) || (ma->mode & MA_TANGENT_V));
|
|
else if(ma->spec_shader==MA_SPEC_WARDISO)
|
|
specfac= WardIso_Spec( vn, lv, view, ma->rms, (vlr->flag & R_TANGENT) || (ma->mode & MA_TANGENT_V));
|
|
else
|
|
specfac= Toon_Spec(vn, lv, view, ma->param[2], ma->param[3], (vlr->flag & R_TANGENT) || (ma->mode & MA_TANGENT_V));
|
|
|
|
/* area lamp correction */
|
|
if(lar->type==LA_AREA) specfac*= inp;
|
|
|
|
t= shadfac[3]*shi->spec*lampdist*specfac;
|
|
|
|
if(ma->mode & MA_RAMP_SPEC) {
|
|
float spec[3];
|
|
do_specular_ramp(shi, specfac, t, spec);
|
|
shr->spec[0]+= t*(lacol[0] * spec[0]);
|
|
shr->spec[1]+= t*(lacol[1] * spec[1]);
|
|
shr->spec[2]+= t*(lacol[2] * spec[2]);
|
|
}
|
|
else {
|
|
shr->spec[0]+= t*(lacol[0] * shi->specr);
|
|
shr->spec[1]+= t*(lacol[1] * shi->specg);
|
|
shr->spec[2]+= t*(lacol[2] * shi->specb);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
#if 0
|
|
static void shade_lamp_loop_pass(ShadeInput *shi, ShadeResult *shr, int passflag)
|
|
{
|
|
Material *ma= shi->mat;
|
|
VlakRen *vlr= shi->vlr;
|
|
|
|
memset(shr, 0, sizeof(ShadeResult));
|
|
|
|
/* envmap hack, always reset */
|
|
shi->refcol[0]= shi->refcol[1]= shi->refcol[2]= shi->refcol[3]= 0.0f;
|
|
|
|
/* material color itself */
|
|
if(passflag & (SCE_PASS_COMBINED|SCE_PASS_RGBA)) {
|
|
if(ma->mode & (MA_VERTEXCOLP|MA_FACETEXTURE)) {
|
|
shi->r= shi->vcol[0];
|
|
shi->g= shi->vcol[1];
|
|
shi->b= shi->vcol[2];
|
|
}
|
|
if(ma->texco)
|
|
do_material_tex(shi);
|
|
|
|
shr->col[0]= shi->r;
|
|
shr->col[1]= shi->g;
|
|
shr->col[2]= shi->b;
|
|
}
|
|
|
|
if(ma->mode & MA_SHLESS) {
|
|
shr->diff[0]= shi->r;
|
|
shr->diff[1]= shi->g;
|
|
shr->diff[2]= shi->b;
|
|
shr->alpha= shi->alpha;
|
|
return;
|
|
}
|
|
|
|
if( (ma->mode & (MA_VERTEXCOL|MA_VERTEXCOLP))== MA_VERTEXCOL ) { // vertexcolor light
|
|
shr->diff[0]= shi->r*(shi->emit+shi->vcol[0]);
|
|
shr->diff[1]= shi->g*(shi->emit+shi->vcol[1]);
|
|
shr->diff[2]= shi->b*(shi->emit+shi->vcol[2]);
|
|
}
|
|
else {
|
|
shr->diff[0]= shi->r*shi->emit;
|
|
shr->diff[1]= shi->g*shi->emit;
|
|
shr->diff[2]= shi->b*shi->emit;
|
|
}
|
|
|
|
/* AO pass */
|
|
if(passflag & (SCE_PASS_COMBINED|SCE_PASS_AO)) {
|
|
ambient_occlusion(shi, shr);
|
|
}
|
|
|
|
/* lighting pass */
|
|
if(passflag & (SCE_PASS_COMBINED|SCE_PASS_DIFFUSE|SCE_PASS_SPEC|SCE_PASS_SHADOW)) {
|
|
GroupObject *go;
|
|
ListBase *lights;
|
|
LampRen *lar;
|
|
float diff[3];
|
|
|
|
/* lights */
|
|
if(ma->group)
|
|
lights= &ma->group->gobject;
|
|
else
|
|
lights= &R.lights;
|
|
|
|
for(go=lights->first; go; go= go->next) {
|
|
lar= go->lampren;
|
|
if(lar==NULL) continue;
|
|
|
|
/* yafray: ignore shading by photonlights, not used in Blender */
|
|
if (lar->type==LA_YF_PHOTON) continue;
|
|
|
|
/* test for lamp layer */
|
|
if(lar->mode & LA_LAYER) if((lar->lay & vlr->lay)==0) continue;
|
|
if((lar->lay & shi->lay)==0) continue;
|
|
|
|
/* accumulates in shr->diff and shr->spec and shr->shad */
|
|
shade_one_light(lar, shi, shr, passflag);
|
|
}
|
|
|
|
/* calculate shadow */
|
|
VECCOPY(diff, shr->shad);
|
|
VECSUB(shr->shad, shr->shad, shr->diff);
|
|
VECCOPY(shr->diff, diff);
|
|
}
|
|
|
|
/* alpha in end, spec can influence it */
|
|
if(passflag & (SCE_PASS_COMBINED|SCE_PASS_RGBA)) {
|
|
if(ma->mode & (MA_ZTRA|MA_RAYTRANSP)) {
|
|
if(ma->fresnel_tra!=0.0)
|
|
shi->alpha*= fresnel_fac(shi->view, shi->vn, ma->fresnel_tra_i, ma->fresnel_tra);
|
|
|
|
if(shi->spectra!=0.0) {
|
|
float t = MAX3(shr->spec[0], shr->spec[1], shr->spec[2]);
|
|
t *= shi->spectra;
|
|
if(t>1.0) t= 1.0;
|
|
shi->alpha= (1.0-t)*shi->alpha+t;
|
|
}
|
|
}
|
|
shr->col[3]= shi->alpha;
|
|
}
|
|
shr->alpha= shi->alpha;
|
|
|
|
shr->diff[0]+= shi->ambr + shi->r*shi->amb*shi->rad[0];
|
|
shr->diff[1]+= shi->ambg + shi->g*shi->amb*shi->rad[1];
|
|
shr->diff[2]+= shi->ambb + shi->b*shi->amb*shi->rad[2];
|
|
|
|
if(ma->mode & MA_RAMP_COL) ramp_diffuse_result(shr->diff, shi);
|
|
if(ma->mode & MA_RAMP_SPEC) ramp_spec_result(shr->spec, shr->spec+1, shr->spec+2, shi);
|
|
|
|
/* refcol is for envmap only */
|
|
if(shi->refcol[0]!=0.0) {
|
|
shr->diff[0]= shi->mirr*shi->refcol[1] + (1.0 - shi->mirr*shi->refcol[0])*shr->diff[0];
|
|
shr->diff[1]= shi->mirg*shi->refcol[2] + (1.0 - shi->mirg*shi->refcol[0])*shr->diff[1];
|
|
shr->diff[2]= shi->mirb*shi->refcol[3] + (1.0 - shi->mirb*shi->refcol[0])*shr->diff[2];
|
|
}
|
|
|
|
if(passflag & SCE_PASS_COMBINED) {
|
|
shr->combined[0]= shr->diff[0] + shr->ao[0]*shr->col[0] + shr->spec[0];
|
|
shr->combined[1]= shr->diff[1] + shr->ao[1]*shr->col[1] + shr->spec[1];
|
|
shr->combined[2]= shr->diff[2] + shr->ao[2]*shr->col[2] + shr->spec[2];
|
|
shr->combined[3]= shr->alpha;
|
|
}
|
|
|
|
if(R.r.mode & R_RAYTRACE) {
|
|
|
|
if((ma->mode & MA_RAYMIRROR)==0) shi->ray_mirror= 0.0;
|
|
|
|
if(shi->ray_mirror!=0.0 || ((shi->mat->mode & MA_RAYTRANSP) && shr->alpha!=1.0)) {
|
|
float diff[3];
|
|
|
|
VECCOPY(diff, shr->diff);
|
|
|
|
ray_trace(shi, shr);
|
|
|
|
VECSUB(shr->ray, shr->diff, diff);
|
|
VECCOPY(shr->diff, diff);
|
|
VECADD(shr->combined, shr->combined, shr->ray);
|
|
}
|
|
}
|
|
else {
|
|
/* doesnt look 'correct', but is better for preview, plus envmaps dont raytrace this */
|
|
if(shi->mat->mode & MA_RAYTRANSP) shr->alpha= 1.0;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void shade_lamp_loop(ShadeInput *shi, ShadeResult *shr)
|
|
{
|
|
LampRen *lar;
|
|
GroupObject *go;
|
|
Material *ma= shi->mat;
|
|
VlakRen *vlr= shi->vlr;
|
|
ListBase *lights;
|
|
|
|
memset(shr, 0, sizeof(ShadeResult));
|
|
|
|
if((ma->mode & MA_RAYMIRROR)==0) shi->ray_mirror= 0.0;
|
|
|
|
/* lights */
|
|
if(ma->group)
|
|
lights= &ma->group->gobject;
|
|
else
|
|
lights= &R.lights;
|
|
|
|
/* separate loop */
|
|
if(ma->mode & MA_ONLYSHADOW) {
|
|
float i, inp, inpr, lv[3];
|
|
float *vn, *view, shadfac[4];
|
|
float t, ir;
|
|
|
|
vn= shi->vn;
|
|
view= shi->view;
|
|
|
|
if(R.r.mode & R_SHADOW) {
|
|
|
|
shadfac[3]= ir= 0.0;
|
|
for(go=lights->first; go; go= go->next) {
|
|
lar= go->lampren;
|
|
if(lar==NULL) continue;
|
|
|
|
/* yafray: ignore shading by photonlights, not used in Blender */
|
|
if (lar->type==LA_YF_PHOTON) continue;
|
|
|
|
if(lar->mode & LA_LAYER) if((lar->lay & vlr->lay)==0) continue;
|
|
if((lar->lay & shi->lay)==0) continue;
|
|
|
|
lv[0]= shi->co[0]-lar->co[0];
|
|
lv[1]= shi->co[1]-lar->co[1];
|
|
lv[2]= shi->co[2]-lar->co[2];
|
|
|
|
if(lar->type==LA_SPOT) {
|
|
/* only test within spotbundel */
|
|
if(lar->shb || (lar->mode & LA_SHAD_RAY)) {
|
|
|
|
Normalise(lv);
|
|
inpr= lv[0]*lar->vec[0]+lv[1]*lar->vec[1]+lv[2]*lar->vec[2];
|
|
if(inpr>lar->spotsi) {
|
|
|
|
inp= vn[0]*lv[0] + vn[1]*lv[1] + vn[2]*lv[2];
|
|
|
|
if(lar->shb) i = testshadowbuf(lar->shb, shi->co, shi->dxco, shi->dyco, inp);
|
|
else {
|
|
float shad[4];
|
|
ray_shadow(shi, lar, shad);
|
|
i= shad[3];
|
|
}
|
|
|
|
t= inpr - lar->spotsi;
|
|
if(t<lar->spotbl && lar->spotbl!=0.0) {
|
|
t/= lar->spotbl;
|
|
t*= t;
|
|
i= t*i+(1.0-t);
|
|
}
|
|
|
|
shadfac[3]+= i;
|
|
ir+= 1.0;
|
|
}
|
|
else {
|
|
shadfac[3]+= 1.0;
|
|
ir+= 1.0;
|
|
}
|
|
}
|
|
}
|
|
else if(lar->mode & LA_SHAD_RAY) {
|
|
float shad[4];
|
|
|
|
/* single sided? */
|
|
if( shi->facenor[0]*lv[0] + shi->facenor[1]*lv[1] + shi->facenor[2]*lv[2] > -0.01) {
|
|
ray_shadow(shi, lar, shad);
|
|
shadfac[3]+= shad[3];
|
|
ir+= 1.0;
|
|
}
|
|
}
|
|
|
|
}
|
|
if(ir>0.0) {
|
|
shadfac[3]/= ir;
|
|
shr->alpha= (shi->alpha)*(1.0-shadfac[3]);
|
|
}
|
|
}
|
|
|
|
if((R.wrld.mode & WO_AMB_OCC) && (R.r.mode & R_RAYTRACE) && shi->amb!=0.0) {
|
|
float f;
|
|
|
|
ray_ao(shi, shadfac); // shadfac==0: full light
|
|
shadfac[3]= 1.0-shadfac[3];
|
|
|
|
f= R.wrld.aoenergy*shadfac[3]*shi->amb;
|
|
|
|
if(R.wrld.aomix==WO_AOADD) {
|
|
shr->alpha += f;
|
|
shr->alpha *= f;
|
|
}
|
|
else if(R.wrld.aomix==WO_AOSUB) {
|
|
shr->alpha += f;
|
|
}
|
|
else {
|
|
shr->alpha *= f;
|
|
shr->alpha += f;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if(ma->mode & (MA_VERTEXCOLP|MA_FACETEXTURE)) {
|
|
shi->r= shi->vcol[0];
|
|
shi->g= shi->vcol[1];
|
|
shi->b= shi->vcol[2];
|
|
}
|
|
|
|
/* envmap hack, always reset */
|
|
shi->refcol[0]= shi->refcol[1]= shi->refcol[2]= shi->refcol[3]= 0.0;
|
|
|
|
if(ma->texco) {
|
|
if(ma->mode & (MA_VERTEXCOLP|MA_FACETEXTURE)) {
|
|
shi->r= shi->vcol[0];
|
|
shi->g= shi->vcol[1];
|
|
shi->b= shi->vcol[2];
|
|
}
|
|
do_material_tex(shi);
|
|
}
|
|
|
|
if(ma->mode & MA_SHLESS) {
|
|
shr->diff[0]= shi->r;
|
|
shr->diff[1]= shi->g;
|
|
shr->diff[2]= shi->b;
|
|
shr->alpha= shi->alpha;
|
|
return;
|
|
}
|
|
|
|
if( (ma->mode & (MA_VERTEXCOL|MA_VERTEXCOLP))== MA_VERTEXCOL ) { // vertexcolor light
|
|
shr->diff[0]= shi->r*(shi->emit+shi->vcol[0]);
|
|
shr->diff[1]= shi->g*(shi->emit+shi->vcol[1]);
|
|
shr->diff[2]= shi->b*(shi->emit+shi->vcol[2]);
|
|
}
|
|
else {
|
|
shr->diff[0]= shi->r*shi->emit;
|
|
shr->diff[1]= shi->g*shi->emit;
|
|
shr->diff[2]= shi->b*shi->emit;
|
|
}
|
|
|
|
if(R.wrld.mode & WO_AMB_OCC) {
|
|
ambient_occlusion(shi, shr);
|
|
shr->diff[0] += shi->r*shr->ao[0];
|
|
shr->diff[1] += shi->r*shr->ao[1];
|
|
shr->diff[2] += shi->r*shr->ao[2];
|
|
}
|
|
|
|
for(go=lights->first; go; go= go->next) {
|
|
lar= go->lampren;
|
|
if(lar==NULL) continue;
|
|
|
|
/* yafray: ignore shading by photonlights, not used in Blender */
|
|
if (lar->type==LA_YF_PHOTON) continue;
|
|
|
|
/* test for lamp layer */
|
|
if(lar->mode & LA_LAYER) if((lar->lay & vlr->lay)==0) continue;
|
|
if((lar->lay & shi->lay)==0) continue;
|
|
|
|
/* accumulates in shr->diff and shr->spec, 0= no passrender */
|
|
shade_one_light(lar, shi, shr, 0);
|
|
}
|
|
|
|
if(ma->mode & (MA_ZTRA|MA_RAYTRANSP)) {
|
|
if(ma->fresnel_tra!=0.0)
|
|
shi->alpha*= fresnel_fac(shi->view, shi->vn, ma->fresnel_tra_i, ma->fresnel_tra);
|
|
|
|
if(shi->spectra!=0.0) {
|
|
float t = MAX3(shr->spec[0], shr->spec[1], shr->spec[2]);
|
|
t *= shi->spectra;
|
|
if(t>1.0) t= 1.0;
|
|
shi->alpha= (1.0-t)*shi->alpha+t;
|
|
}
|
|
}
|
|
|
|
shr->alpha= shi->alpha;
|
|
|
|
shr->diff[0]+= shi->r*shi->amb*shi->rad[0];
|
|
shr->diff[0]+= shi->ambr;
|
|
|
|
shr->diff[1]+= shi->g*shi->amb*shi->rad[1];
|
|
shr->diff[1]+= shi->ambg;
|
|
|
|
shr->diff[2]+= shi->b*shi->amb*shi->rad[2];
|
|
shr->diff[2]+= shi->ambb;
|
|
|
|
if(ma->mode & MA_RAMP_COL) ramp_diffuse_result(shr->diff, shi);
|
|
if(ma->mode & MA_RAMP_SPEC) ramp_spec_result(shr->spec, shr->spec+1, shr->spec+2, shi);
|
|
|
|
/* refcol is for envmap only */
|
|
if(shi->refcol[0]!=0.0) {
|
|
shr->diff[0]= shi->mirr*shi->refcol[1] + (1.0 - shi->mirr*shi->refcol[0])*shr->diff[0];
|
|
shr->diff[1]= shi->mirg*shi->refcol[2] + (1.0 - shi->mirg*shi->refcol[0])*shr->diff[1];
|
|
shr->diff[2]= shi->mirb*shi->refcol[3] + (1.0 - shi->mirb*shi->refcol[0])*shr->diff[2];
|
|
}
|
|
|
|
}
|
|
|
|
/* this function sets all coords for render (shared with raytracer) */
|
|
/* warning; exception for ortho render is here, can be done better! */
|
|
void shade_input_set_coords(ShadeInput *shi, float u, float v, int i1, int i2, int i3)
|
|
{
|
|
VertRen *v1, *v2, *v3;
|
|
VlakRen *vlr= shi->vlr;
|
|
float l, dl;
|
|
short texco= shi->mat->texco;
|
|
int mode= shi->mat->mode_l; /* or-ed result for all layers */
|
|
char p1, p2, p3;
|
|
|
|
/* for rendering of quads, the following values are used to denote vertices:
|
|
0 1 2 scanline tria & first half quad, and ray tria
|
|
0 2 3 scanline 2nd half quad
|
|
0 1 3 raytracer first half quad
|
|
2 1 3 raytracer 2nd half quad
|
|
*/
|
|
|
|
if(i1==0) {
|
|
v1= vlr->v1;
|
|
p1= ME_FLIPV1;
|
|
} else {
|
|
v1= vlr->v3;
|
|
p1= ME_FLIPV3;
|
|
}
|
|
|
|
if(i2==1) {
|
|
v2= vlr->v2;
|
|
p2= ME_FLIPV2;
|
|
} else {
|
|
v2= vlr->v3;
|
|
p2= ME_FLIPV3;
|
|
}
|
|
|
|
if(i3==2) {
|
|
v3= vlr->v3;
|
|
p3= ME_FLIPV3;
|
|
} else {
|
|
v3= vlr->v4;
|
|
p3= ME_FLIPV4;
|
|
}
|
|
|
|
/* calculate U and V, for scanline (normal u and v are -1 to 0) */
|
|
if(u==1.0) {
|
|
if( (vlr->flag & R_SMOOTH) || (texco & NEED_UV) ) {
|
|
/* exception case for wire render of edge */
|
|
if(vlr->v2==vlr->v3) {
|
|
float lend, lenc;
|
|
|
|
lend= VecLenf(v2->co, v1->co);
|
|
lenc= VecLenf(shi->co, v1->co);
|
|
|
|
if(lend==0.0f) {
|
|
u=v= 0.0f;
|
|
}
|
|
else {
|
|
u= - (1.0f - lenc/lend);
|
|
v= 0.0f;
|
|
}
|
|
|
|
if(shi->osatex) {
|
|
shi->dxuv[0]= 0.0f;
|
|
shi->dxuv[1]= 0.0f;
|
|
shi->dyuv[0]= 0.0f;
|
|
shi->dyuv[1]= 0.0f;
|
|
}
|
|
}
|
|
else {
|
|
float detsh, t00, t10, t01, t11;
|
|
|
|
if(vlr->snproj==0) {
|
|
t00= v3->co[0]-v1->co[0]; t01= v3->co[1]-v1->co[1];
|
|
t10= v3->co[0]-v2->co[0]; t11= v3->co[1]-v2->co[1];
|
|
}
|
|
else if(vlr->snproj==1) {
|
|
t00= v3->co[0]-v1->co[0]; t01= v3->co[2]-v1->co[2];
|
|
t10= v3->co[0]-v2->co[0]; t11= v3->co[2]-v2->co[2];
|
|
}
|
|
else {
|
|
t00= v3->co[1]-v1->co[1]; t01= v3->co[2]-v1->co[2];
|
|
t10= v3->co[1]-v2->co[1]; t11= v3->co[2]-v2->co[2];
|
|
}
|
|
|
|
detsh= 1.0/(t00*t11-t10*t01);
|
|
t00*= detsh; t01*=detsh;
|
|
t10*=detsh; t11*=detsh;
|
|
|
|
if(vlr->snproj==0) {
|
|
u= (shi->co[0]-v3->co[0])*t11-(shi->co[1]-v3->co[1])*t10;
|
|
v= (shi->co[1]-v3->co[1])*t00-(shi->co[0]-v3->co[0])*t01;
|
|
if(shi->osatex) {
|
|
shi->dxuv[0]= shi->dxco[0]*t11- shi->dxco[1]*t10;
|
|
shi->dxuv[1]= shi->dxco[1]*t00- shi->dxco[0]*t01;
|
|
shi->dyuv[0]= shi->dyco[0]*t11- shi->dyco[1]*t10;
|
|
shi->dyuv[1]= shi->dyco[1]*t00- shi->dyco[0]*t01;
|
|
}
|
|
}
|
|
else if(vlr->snproj==1) {
|
|
u= (shi->co[0]-v3->co[0])*t11-(shi->co[2]-v3->co[2])*t10;
|
|
v= (shi->co[2]-v3->co[2])*t00-(shi->co[0]-v3->co[0])*t01;
|
|
if(shi->osatex) {
|
|
shi->dxuv[0]= shi->dxco[0]*t11- shi->dxco[2]*t10;
|
|
shi->dxuv[1]= shi->dxco[2]*t00- shi->dxco[0]*t01;
|
|
shi->dyuv[0]= shi->dyco[0]*t11- shi->dyco[2]*t10;
|
|
shi->dyuv[1]= shi->dyco[2]*t00- shi->dyco[0]*t01;
|
|
}
|
|
}
|
|
else {
|
|
u= (shi->co[1]-v3->co[1])*t11-(shi->co[2]-v3->co[2])*t10;
|
|
v= (shi->co[2]-v3->co[2])*t00-(shi->co[1]-v3->co[1])*t01;
|
|
if(shi->osatex) {
|
|
shi->dxuv[0]= shi->dxco[1]*t11- shi->dxco[2]*t10;
|
|
shi->dxuv[1]= shi->dxco[2]*t00- shi->dxco[1]*t01;
|
|
shi->dyuv[0]= shi->dyco[1]*t11- shi->dyco[2]*t10;
|
|
shi->dyuv[1]= shi->dyco[2]*t00- shi->dyco[1]*t01;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
l= 1.0+u+v;
|
|
|
|
/* calculate punos (vertexnormals) */
|
|
if(vlr->flag & R_SMOOTH) {
|
|
float n1[3], n2[3], n3[3];
|
|
|
|
if(shi->puno & p1) {
|
|
n1[0]= -v1->n[0]; n1[1]= -v1->n[1]; n1[2]= -v1->n[2];
|
|
} else {
|
|
n1[0]= v1->n[0]; n1[1]= v1->n[1]; n1[2]= v1->n[2];
|
|
}
|
|
if(shi->puno & p2) {
|
|
n2[0]= -v2->n[0]; n2[1]= -v2->n[1]; n2[2]= -v2->n[2];
|
|
} else {
|
|
n2[0]= v2->n[0]; n2[1]= v2->n[1]; n2[2]= v2->n[2];
|
|
}
|
|
|
|
if(shi->puno & p3) {
|
|
n3[0]= -v3->n[0]; n3[1]= -v3->n[1]; n3[2]= -v3->n[2];
|
|
} else {
|
|
n3[0]= v3->n[0]; n3[1]= v3->n[1]; n3[2]= v3->n[2];
|
|
}
|
|
|
|
shi->vn[0]= l*n3[0]-u*n1[0]-v*n2[0];
|
|
shi->vn[1]= l*n3[1]-u*n1[1]-v*n2[1];
|
|
shi->vn[2]= l*n3[2]-u*n1[2]-v*n2[2];
|
|
|
|
Normalise(shi->vn);
|
|
|
|
if(shi->osatex && (texco & (TEXCO_NORM|TEXCO_REFL)) ) {
|
|
dl= shi->dxuv[0]+shi->dxuv[1];
|
|
shi->dxno[0]= dl*n3[0]-shi->dxuv[0]*n1[0]-shi->dxuv[1]*n2[0];
|
|
shi->dxno[1]= dl*n3[1]-shi->dxuv[0]*n1[1]-shi->dxuv[1]*n2[1];
|
|
shi->dxno[2]= dl*n3[2]-shi->dxuv[0]*n1[2]-shi->dxuv[1]*n2[2];
|
|
dl= shi->dyuv[0]+shi->dyuv[1];
|
|
shi->dyno[0]= dl*n3[0]-shi->dyuv[0]*n1[0]-shi->dyuv[1]*n2[0];
|
|
shi->dyno[1]= dl*n3[1]-shi->dyuv[0]*n1[1]-shi->dyuv[1]*n2[1];
|
|
shi->dyno[2]= dl*n3[2]-shi->dyuv[0]*n1[2]-shi->dyuv[1]*n2[2];
|
|
|
|
}
|
|
|
|
if(mode & MA_TANGENT_V) {
|
|
float *s1, *s2, *s3;
|
|
|
|
s1= RE_vertren_get_tangent(&R, v1, 0);
|
|
s2= RE_vertren_get_tangent(&R, v2, 0);
|
|
s3= RE_vertren_get_tangent(&R, v3, 0);
|
|
if(s1 && s2 && s3) {
|
|
shi->tang[0]= (l*s3[0] - u*s1[0] - v*s2[0]);
|
|
shi->tang[1]= (l*s3[1] - u*s1[1] - v*s2[1]);
|
|
shi->tang[2]= (l*s3[2] - u*s1[2] - v*s2[2]);
|
|
}
|
|
else shi->tang[0]= shi->tang[1]= shi->tang[2]= 0.0f;
|
|
}
|
|
}
|
|
else {
|
|
VECCOPY(shi->vn, shi->facenor);
|
|
if(mode & MA_TANGENT_V)
|
|
shi->tang[0]= shi->tang[1]= shi->tang[2]= 0.0f;
|
|
}
|
|
|
|
if(R.r.mode & R_SPEED) {
|
|
float *s1, *s2, *s3;
|
|
|
|
s1= RE_vertren_get_winspeed(&R, v1, 0);
|
|
s2= RE_vertren_get_winspeed(&R, v2, 0);
|
|
s3= RE_vertren_get_winspeed(&R, v3, 0);
|
|
if(s1 && s2 && s3) {
|
|
shi->winspeed[0]= (l*s3[0] - u*s1[0] - v*s2[0]);
|
|
shi->winspeed[1]= (l*s3[1] - u*s1[1] - v*s2[1]);
|
|
shi->winspeed[2]= (l*s3[2] - u*s1[2] - v*s2[2]);
|
|
shi->winspeed[3]= (l*s3[3] - u*s1[3] - v*s2[3]);
|
|
}
|
|
else {
|
|
shi->winspeed[0]= shi->winspeed[1]= shi->winspeed[2]= shi->winspeed[3]= 0.0f;
|
|
}
|
|
}
|
|
|
|
/* texture coordinates. shi->dxuv shi->dyuv have been set */
|
|
if(texco & NEED_UV) {
|
|
if(texco & TEXCO_ORCO) {
|
|
if(v1->orco) {
|
|
float *o1, *o2, *o3;
|
|
|
|
o1= v1->orco;
|
|
o2= v2->orco;
|
|
o3= v3->orco;
|
|
|
|
shi->lo[0]= l*o3[0]-u*o1[0]-v*o2[0];
|
|
shi->lo[1]= l*o3[1]-u*o1[1]-v*o2[1];
|
|
shi->lo[2]= l*o3[2]-u*o1[2]-v*o2[2];
|
|
|
|
if(shi->osatex) {
|
|
dl= shi->dxuv[0]+shi->dxuv[1];
|
|
shi->dxlo[0]= dl*o3[0]-shi->dxuv[0]*o1[0]-shi->dxuv[1]*o2[0];
|
|
shi->dxlo[1]= dl*o3[1]-shi->dxuv[0]*o1[1]-shi->dxuv[1]*o2[1];
|
|
shi->dxlo[2]= dl*o3[2]-shi->dxuv[0]*o1[2]-shi->dxuv[1]*o2[2];
|
|
dl= shi->dyuv[0]+shi->dyuv[1];
|
|
shi->dylo[0]= dl*o3[0]-shi->dyuv[0]*o1[0]-shi->dyuv[1]*o2[0];
|
|
shi->dylo[1]= dl*o3[1]-shi->dyuv[0]*o1[1]-shi->dyuv[1]*o2[1];
|
|
shi->dylo[2]= dl*o3[2]-shi->dyuv[0]*o1[2]-shi->dyuv[1]*o2[2];
|
|
}
|
|
}
|
|
}
|
|
|
|
if(texco & TEXCO_GLOB) {
|
|
VECCOPY(shi->gl, shi->co);
|
|
MTC_Mat4MulVecfl(R.viewinv, shi->gl);
|
|
if(shi->osatex) {
|
|
VECCOPY(shi->dxgl, shi->dxco);
|
|
MTC_Mat3MulVecfl(R.imat, shi->dxco);
|
|
VECCOPY(shi->dygl, shi->dyco);
|
|
MTC_Mat3MulVecfl(R.imat, shi->dyco);
|
|
}
|
|
}
|
|
if(texco & TEXCO_STRAND) {
|
|
shi->strand= (l*v3->accum - u*v1->accum - v*v2->accum);
|
|
if(shi->osatex) {
|
|
dl= shi->dxuv[0]+shi->dxuv[1];
|
|
shi->dxstrand= dl*v3->accum-shi->dxuv[0]*v1->accum-shi->dxuv[1]*v2->accum;
|
|
dl= shi->dyuv[0]+shi->dyuv[1];
|
|
shi->dystrand= dl*v3->accum-shi->dyuv[0]*v1->accum-shi->dyuv[1]*v2->accum;
|
|
}
|
|
}
|
|
if((texco & TEXCO_UV) || (mode & (MA_VERTEXCOL|MA_VERTEXCOLP|MA_FACETEXTURE))) {
|
|
int j1=i1, j2=i2, j3=i3;
|
|
|
|
/* to prevent storing new tfaces or vcols, we check a split runtime */
|
|
/* 4---3 4---3 */
|
|
/* |\ 1| or |1 /| */
|
|
/* |0\ | |/ 0| */
|
|
/* 1---2 1---2 0 = orig face, 1 = new face */
|
|
|
|
/* Update vert nums to point to correct verts of original face */
|
|
if(vlr->flag & R_DIVIDE_24) {
|
|
if(vlr->flag & R_FACE_SPLIT) {
|
|
j1++; j2++; j3++;
|
|
}
|
|
else {
|
|
j3++;
|
|
}
|
|
}
|
|
else if(vlr->flag & R_FACE_SPLIT) {
|
|
j2++; j3++;
|
|
}
|
|
|
|
if(mode & (MA_VERTEXCOL|MA_VERTEXCOLP)) {
|
|
|
|
if(vlr->vcol) {
|
|
char *cp1, *cp2, *cp3;
|
|
|
|
cp1= (char *)(vlr->vcol+j1);
|
|
cp2= (char *)(vlr->vcol+j2);
|
|
cp3= (char *)(vlr->vcol+j3);
|
|
|
|
shi->vcol[0]= (l*((float)cp3[3]) - u*((float)cp1[3]) - v*((float)cp2[3]))/255.0;
|
|
shi->vcol[1]= (l*((float)cp3[2]) - u*((float)cp1[2]) - v*((float)cp2[2]))/255.0;
|
|
shi->vcol[2]= (l*((float)cp3[1]) - u*((float)cp1[1]) - v*((float)cp2[1]))/255.0;
|
|
}
|
|
else {
|
|
shi->vcol[0]= 0.0;
|
|
shi->vcol[1]= 0.0;
|
|
shi->vcol[2]= 0.0;
|
|
}
|
|
}
|
|
if(vlr->tface) {
|
|
float *uv1, *uv2, *uv3;
|
|
|
|
uv1= vlr->tface->uv[j1];
|
|
uv2= vlr->tface->uv[j2];
|
|
uv3= vlr->tface->uv[j3];
|
|
|
|
shi->uv[0]= -1.0 + 2.0*(l*uv3[0]-u*uv1[0]-v*uv2[0]);
|
|
shi->uv[1]= -1.0 + 2.0*(l*uv3[1]-u*uv1[1]-v*uv2[1]);
|
|
shi->uv[2]= 0.0; // texture.c assumes there are 3 coords
|
|
|
|
if(shi->osatex) {
|
|
float duv[2];
|
|
|
|
dl= shi->dxuv[0]+shi->dxuv[1];
|
|
duv[0]= shi->dxuv[0];
|
|
duv[1]= shi->dxuv[1];
|
|
|
|
shi->dxuv[0]= 2.0*(dl*uv3[0]-duv[0]*uv1[0]-duv[1]*uv2[0]);
|
|
shi->dxuv[1]= 2.0*(dl*uv3[1]-duv[0]*uv1[1]-duv[1]*uv2[1]);
|
|
|
|
dl= shi->dyuv[0]+shi->dyuv[1];
|
|
duv[0]= shi->dyuv[0];
|
|
duv[1]= shi->dyuv[1];
|
|
|
|
shi->dyuv[0]= 2.0*(dl*uv3[0]-duv[0]*uv1[0]-duv[1]*uv2[0]);
|
|
shi->dyuv[1]= 2.0*(dl*uv3[1]-duv[0]*uv1[1]-duv[1]*uv2[1]);
|
|
}
|
|
if(mode & MA_FACETEXTURE) {
|
|
if((mode & (MA_VERTEXCOL|MA_VERTEXCOLP))==0) {
|
|
shi->vcol[0]= 1.0;
|
|
shi->vcol[1]= 1.0;
|
|
shi->vcol[2]= 1.0;
|
|
}
|
|
if(vlr->tface) render_realtime_texture(shi);
|
|
}
|
|
}
|
|
else {
|
|
shi->uv[0]= 2.0*(u+.5);
|
|
shi->uv[1]= 2.0*(v+.5);
|
|
shi->uv[2]= 0.0; // texture.c assumes there are 3 coords
|
|
if(mode & MA_FACETEXTURE) {
|
|
/* no tface? set at 1.0 */
|
|
shi->vcol[0]= 1.0;
|
|
shi->vcol[1]= 1.0;
|
|
shi->vcol[2]= 1.0;
|
|
}
|
|
}
|
|
}
|
|
if(texco & TEXCO_NORM) {
|
|
shi->orn[0]= -shi->vn[0];
|
|
shi->orn[1]= -shi->vn[1];
|
|
shi->orn[2]= -shi->vn[2];
|
|
}
|
|
if(mode & MA_RADIO) {
|
|
float *r1, *r2, *r3;
|
|
|
|
r1= RE_vertren_get_rad(&R, v1, 0);
|
|
r2= RE_vertren_get_rad(&R, v2, 0);
|
|
r3= RE_vertren_get_rad(&R, v3, 0);
|
|
|
|
if(r1 && r2 && r3) {
|
|
shi->rad[0]= (l*r3[0] - u*r1[0] - v*r2[0]);
|
|
shi->rad[1]= (l*r3[1] - u*r1[1] - v*r2[1]);
|
|
shi->rad[2]= (l*r3[2] - u*r1[2] - v*r2[2]);
|
|
}
|
|
else {
|
|
shi->rad[0]= shi->rad[1]= shi->rad[2]= 0.0;
|
|
}
|
|
}
|
|
else {
|
|
shi->rad[0]= shi->rad[1]= shi->rad[2]= 0.0;
|
|
}
|
|
if(texco & TEXCO_REFL) {
|
|
/* mirror reflection colour textures (and envmap) */
|
|
calc_R_ref(shi); /* wrong location for normal maps! XXXXXXXXXXXXXX */
|
|
}
|
|
if(texco & TEXCO_STRESS) {
|
|
float *s1, *s2, *s3;
|
|
|
|
s1= RE_vertren_get_stress(&R, v1, 0);
|
|
s2= RE_vertren_get_stress(&R, v2, 0);
|
|
s3= RE_vertren_get_stress(&R, v3, 0);
|
|
if(s1 && s2 && s3) {
|
|
shi->stress= l*s3[0] - u*s1[0] - v*s2[0];
|
|
if(shi->stress<1.0f) shi->stress-= 1.0f;
|
|
else shi->stress= (shi->stress-1.0f)/shi->stress;
|
|
}
|
|
else shi->stress= 0.0f;
|
|
}
|
|
if(texco & TEXCO_TANGENT) {
|
|
if((mode & MA_TANGENT_V)==0) {
|
|
/* just prevent surprises */
|
|
shi->tang[0]= shi->tang[1]= shi->tang[2]= 0.0f;
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
shi->rad[0]= shi->rad[1]= shi->rad[2]= 0.0;
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
/* return labda for view vector being closest to line v3-v4 */
|
|
/* was used for wire render */
|
|
static float isec_view_line(float *view, float *v3, float *v4)
|
|
{
|
|
float vec[3];
|
|
float dot0, dot1, dot2, veclen, viewlen;
|
|
float fac, div;
|
|
|
|
vec[0]= v4[0] - v3[0];
|
|
vec[1]= v4[1] - v3[1];
|
|
vec[2]= v4[2] - v3[2];
|
|
|
|
dot0 = v3[0]*vec[0] + v3[1]*vec[1] + v3[2]*vec[2];
|
|
dot1 = vec[0]*view[0] + vec[1]*view[1] + vec[2]*view[2];
|
|
dot2 = v3[0]*view[0] + v3[1]*view[1] + v3[2]*view[2];
|
|
|
|
veclen = vec[0]*vec[0] + vec[1]*vec[1] + vec[2]*vec[2];
|
|
viewlen = view[0]*view[0] + view[1]*view[1] + view[2]*view[2];
|
|
|
|
div = viewlen*veclen - dot1*dot1;
|
|
if (div==0.0) return 0.0;
|
|
|
|
fac = dot2*veclen - dot0*dot1;
|
|
return fac/div;
|
|
}
|
|
#endif
|
|
|
|
|
|
/* also used as callback for nodes */
|
|
void shade_material_loop(ShadeInput *shi, ShadeResult *shr)
|
|
{
|
|
|
|
shade_lamp_loop(shi, shr); /* clears shr */
|
|
|
|
if(shi->translucency!=0.0) {
|
|
ShadeResult shr_t;
|
|
|
|
VECCOPY(shi->vn, shi->vno);
|
|
VecMulf(shi->vn, -1.0);
|
|
VecMulf(shi->facenor, -1.0);
|
|
shade_lamp_loop(shi, &shr_t);
|
|
|
|
shr->diff[0]+= shi->translucency*shr_t.diff[0];
|
|
shr->diff[1]+= shi->translucency*shr_t.diff[1];
|
|
shr->diff[2]+= shi->translucency*shr_t.diff[2];
|
|
VecMulf(shi->vn, -1.0);
|
|
VecMulf(shi->facenor, -1.0);
|
|
}
|
|
|
|
if(R.r.mode & R_RAYTRACE) {
|
|
if(shi->ray_mirror!=0.0 || ((shi->mat->mode & MA_RAYTRANSP) && shr->alpha!=1.0)) {
|
|
ray_trace(shi, shr);
|
|
}
|
|
}
|
|
else {
|
|
/* doesnt look 'correct', but is better for preview, plus envmaps dont raytrace this */
|
|
if(shi->mat->mode & MA_RAYTRANSP) shr->alpha= 1.0;
|
|
}
|
|
|
|
}
|
|
|
|
/* x,y: window coordinate from 0 to rectx,y */
|
|
/* return pointer to rendered face */
|
|
/* note, facenr declared volatile due to over-eager -O2 optimizations
|
|
* on cygwin (particularly -frerun-cse-after-loop)
|
|
*/
|
|
void *shadepixel(ShadePixelInfo *shpi, float x, float y, int z, volatile int facenr, int mask, float *rco)
|
|
{
|
|
ShadeResult *shr= &shpi->shr;
|
|
ShadeInput shi;
|
|
VlakRen *vlr=NULL;
|
|
|
|
if(facenr< 0) { /* error */
|
|
return NULL;
|
|
}
|
|
/* currently in use for dithering (soft shadow) node preview */
|
|
shi.xs= (int)(x+0.5f);
|
|
shi.ys= (int)(y+0.5f);
|
|
|
|
shi.thread= shpi->thread;
|
|
shi.do_preview= R.r.scemode & R_NODE_PREVIEW;
|
|
shi.lay= shpi->lay;
|
|
|
|
/* mask is used to indicate amount of samples (ray shad/mir and AO) */
|
|
shi.mask= mask;
|
|
shi.depth= 0; // means first hit, not raytracing
|
|
|
|
if(facenr==0) { /* sky */
|
|
memset(shr, 0, sizeof(ShadeResult));
|
|
rco[0]= rco[1]= rco[2]= 0.0f;
|
|
}
|
|
else if( (facenr & RE_QUAD_MASK) <= R.totvlak) {
|
|
VertRen *v1;
|
|
float alpha, fac, zcor;
|
|
|
|
vlr= RE_findOrAddVlak(&R, (facenr-1) & RE_QUAD_MASK);
|
|
|
|
shi.vlr= vlr;
|
|
shi.mat= vlr->mat;
|
|
|
|
shi.osatex= (shi.mat->texco & TEXCO_OSA);
|
|
|
|
/* copy the face normal (needed because it gets flipped for tracing */
|
|
VECCOPY(shi.facenor, vlr->n);
|
|
shi.puno= vlr->puno;
|
|
|
|
v1= vlr->v1;
|
|
|
|
/* COXYZ AND VIEW VECTOR */
|
|
calc_view_vector(shi.view, x, y); /* returns not normalized, so is in viewplane coords */
|
|
|
|
/* wire cannot use normal for calculating shi.co */
|
|
if(shi.mat->mode & MA_WIRE) {
|
|
float zco;
|
|
/* inverse of zbuf calc: zbuf = MAXZ*hoco_z/hoco_w */
|
|
|
|
zco= ((float)z)/2147483647.0f;
|
|
shi.co[2]= R.winmat[3][2]/( R.winmat[2][3]*zco - R.winmat[2][2] );
|
|
|
|
fac= zcor= shi.co[2]/shi.view[2];
|
|
|
|
shi.co[0]= fac*shi.view[0];
|
|
shi.co[1]= fac*shi.view[1];
|
|
}
|
|
else {
|
|
float dface;
|
|
|
|
dface= v1->co[0]*shi.facenor[0]+v1->co[1]*shi.facenor[1]+v1->co[2]*shi.facenor[2];
|
|
|
|
/* ortho viewplane cannot intersect using view vector originating in (0,0,0) */
|
|
if(R.r.mode & R_ORTHO) {
|
|
/* x and y 3d coordinate can be derived from pixel coord and winmat */
|
|
float fx= 2.0/(R.winx*R.winmat[0][0]);
|
|
float fy= 2.0/(R.winy*R.winmat[1][1]);
|
|
|
|
shi.co[0]= (0.5 + x - 0.5*R.winx)*fx - R.winmat[3][0]/R.winmat[0][0];
|
|
shi.co[1]= (0.5 + y - 0.5*R.winy)*fy - R.winmat[3][1]/R.winmat[1][1];
|
|
|
|
/* using a*x + b*y + c*z = d equation, (a b c) is normal */
|
|
if(shi.facenor[2]!=0.0f)
|
|
shi.co[2]= (dface - shi.facenor[0]*shi.co[0] - shi.facenor[1]*shi.co[1])/shi.facenor[2];
|
|
else
|
|
shi.co[2]= 0.0f;
|
|
|
|
zcor= 1.0; // only to prevent not-initialize
|
|
|
|
if(shi.osatex || (R.r.mode & R_SHADOW) ) {
|
|
shi.dxco[0]= fx;
|
|
shi.dxco[1]= 0.0;
|
|
if(shi.facenor[2]!=0.0f)
|
|
shi.dxco[2]= (shi.facenor[0]*fx)/shi.facenor[2];
|
|
else
|
|
shi.dxco[2]= 0.0f;
|
|
|
|
shi.dyco[0]= 0.0;
|
|
shi.dyco[1]= fy;
|
|
if(shi.facenor[2]!=0.0f)
|
|
shi.dyco[2]= (shi.facenor[1]*fy)/shi.facenor[2];
|
|
else
|
|
shi.dyco[2]= 0.0f;
|
|
}
|
|
}
|
|
else {
|
|
float div;
|
|
|
|
div= shi.facenor[0]*shi.view[0] + shi.facenor[1]*shi.view[1] + shi.facenor[2]*shi.view[2];
|
|
if (div!=0.0) fac= zcor= dface/div;
|
|
else fac= zcor= 0.0;
|
|
|
|
shi.co[0]= fac*shi.view[0];
|
|
shi.co[1]= fac*shi.view[1];
|
|
shi.co[2]= fac*shi.view[2];
|
|
|
|
/* pixel dx/dy for render coord */
|
|
if(shi.osatex || (R.r.mode & R_SHADOW) ) {
|
|
float u= dface/(div - R.viewdx*shi.facenor[0]);
|
|
float v= dface/(div - R.viewdy*shi.facenor[1]);
|
|
|
|
shi.dxco[0]= shi.co[0]- (shi.view[0]-R.viewdx)*u;
|
|
shi.dxco[1]= shi.co[1]- (shi.view[1])*u;
|
|
shi.dxco[2]= shi.co[2]- (shi.view[2])*u;
|
|
|
|
shi.dyco[0]= shi.co[0]- (shi.view[0])*v;
|
|
shi.dyco[1]= shi.co[1]- (shi.view[1]-R.viewdy)*v;
|
|
shi.dyco[2]= shi.co[2]- (shi.view[2])*v;
|
|
|
|
}
|
|
}
|
|
}
|
|
/* rco might be used for sky texture */
|
|
VECCOPY(rco, shi.co);
|
|
|
|
/* cannot normalise earlier, code above needs it at viewplane level */
|
|
fac= Normalise(shi.view);
|
|
zcor*= fac; // for mist, distance of point from camera
|
|
|
|
if(shi.osatex) {
|
|
if( (shi.mat->texco & TEXCO_REFL) ) {
|
|
shi.dxview= -R.viewdx/fac;
|
|
shi.dyview= -R.viewdy/fac;
|
|
}
|
|
}
|
|
|
|
/* calcuate normals, texture coords, vertex colors, etc */
|
|
if(facenr & RE_QUAD_OFFS)
|
|
shade_input_set_coords(&shi, 1.0, 1.0, 0, 2, 3);
|
|
else
|
|
shade_input_set_coords(&shi, 1.0, 1.0, 0, 1, 2);
|
|
|
|
/* this only avalailable for scanline */
|
|
if(shi.mat->texco & TEXCO_WINDOW) {
|
|
shi.winco[0]= -1.0f + 2.0f*x/(float)R.winx;
|
|
shi.winco[1]= -1.0f + 2.0f*y/(float)R.winy;
|
|
shi.winco[2]= 0.0;
|
|
if(shi.osatex) {
|
|
shi.dxwin[0]= 2.0/(float)R.winx;
|
|
shi.dywin[1]= 2.0/(float)R.winy;
|
|
shi.dxwin[1]= shi.dxwin[2]= 0.0;
|
|
shi.dywin[0]= shi.dywin[2]= 0.0;
|
|
}
|
|
}
|
|
/* after this the u and v AND shi.dxuv and shi.dyuv are incorrect */
|
|
if(shi.mat->texco & TEXCO_STICKY) {
|
|
VertRen *v2, *v3;
|
|
float *s1, *s2, *s3;
|
|
|
|
if(facenr & RE_QUAD_OFFS) {
|
|
v2= vlr->v3; v3= vlr->v4;
|
|
} else {
|
|
v2= vlr->v2; v3= vlr->v3;
|
|
}
|
|
|
|
s1= RE_vertren_get_sticky(&R, v1, 0);
|
|
s2= RE_vertren_get_sticky(&R, v2, 0);
|
|
s3= RE_vertren_get_sticky(&R, v3, 0);
|
|
|
|
if(s1 && s2 && s3) {
|
|
float Zmulx, Zmuly;
|
|
float hox, hoy, l, dl, u, v;
|
|
float s00, s01, s10, s11, detsh;
|
|
|
|
/* XXXX */
|
|
Zmulx= R.winx; Zmuly= R.winy;
|
|
|
|
s00= v3->ho[0]/v3->ho[3] - v1->ho[0]/v1->ho[3];
|
|
s01= v3->ho[1]/v3->ho[3] - v1->ho[1]/v1->ho[3];
|
|
s10= v3->ho[0]/v3->ho[3] - v2->ho[0]/v2->ho[3];
|
|
s11= v3->ho[1]/v3->ho[3] - v2->ho[1]/v2->ho[3];
|
|
|
|
detsh= s00*s11-s10*s01;
|
|
s00/= detsh; s01/=detsh;
|
|
s10/=detsh; s11/=detsh;
|
|
|
|
/* recalc u and v again */
|
|
hox= x/Zmulx -1.0;
|
|
hoy= y/Zmuly -1.0;
|
|
u= (hox - v3->ho[0]/v3->ho[3])*s11 - (hoy - v3->ho[1]/v3->ho[3])*s10;
|
|
v= (hoy - v3->ho[1]/v3->ho[3])*s00 - (hox - v3->ho[0]/v3->ho[3])*s01;
|
|
l= 1.0+u+v;
|
|
|
|
shi.sticky[0]= l*s3[0]-u*s1[0]-v*s2[0];
|
|
shi.sticky[1]= l*s3[1]-u*s1[1]-v*s2[1];
|
|
shi.sticky[2]= 0.0;
|
|
|
|
if(shi.osatex) {
|
|
shi.dxuv[0]= s11/Zmulx;
|
|
shi.dxuv[1]= - s01/Zmulx;
|
|
shi.dyuv[0]= - s10/Zmuly;
|
|
shi.dyuv[1]= s00/Zmuly;
|
|
|
|
dl= shi.dxuv[0]+shi.dxuv[1];
|
|
shi.dxsticky[0]= dl*s3[0]-shi.dxuv[0]*s1[0]-shi.dxuv[1]*s2[0];
|
|
shi.dxsticky[1]= dl*s3[1]-shi.dxuv[0]*s1[1]-shi.dxuv[1]*s2[1];
|
|
dl= shi.dyuv[0]+shi.dyuv[1];
|
|
shi.dysticky[0]= dl*s3[0]-shi.dyuv[0]*s1[0]-shi.dyuv[1]*s2[0];
|
|
shi.dysticky[1]= dl*s3[1]-shi.dyuv[0]*s1[1]-shi.dyuv[1]*s2[1];
|
|
}
|
|
}
|
|
}
|
|
|
|
/* ------ main shading loop -------- */
|
|
VECCOPY(shi.vno, shi.vn);
|
|
|
|
if(shi.mat->nodetree && shi.mat->use_nodes) {
|
|
ntreeShaderExecTree(shi.mat->nodetree, &shi, shr);
|
|
}
|
|
else {
|
|
/* copy all relevant material vars, note, keep this synced with render_types.h */
|
|
memcpy(&shi.r, &shi.mat->r, 23*sizeof(float));
|
|
shi.har= shi.mat->har;
|
|
|
|
// if(passflag)
|
|
// shade_lamp_loop_pass(&shi, shr, passflag);
|
|
// else
|
|
shade_material_loop(&shi, shr);
|
|
}
|
|
|
|
/* after shading and composit layers */
|
|
if(shr->spec[0]<0.0f) shr->spec[0]= 0.0f;
|
|
if(shr->spec[1]<0.0f) shr->spec[1]= 0.0f;
|
|
if(shr->spec[2]<0.0f) shr->spec[2]= 0.0f;
|
|
|
|
if(shr->diff[0]<0.0f) shr->diff[0]= 0.0f;
|
|
if(shr->diff[1]<0.0f) shr->diff[1]= 0.0f;
|
|
if(shr->diff[2]<0.0f) shr->diff[2]= 0.0f;
|
|
|
|
// if(passflag==0) {
|
|
VECADD(shr->combined, shr->diff, shr->spec);
|
|
// }
|
|
|
|
/* additional passes */
|
|
QUATCOPY(shr->winspeed, shi.winspeed);
|
|
VECCOPY(shr->nor, shi.vn);
|
|
|
|
/* NOTE: this is not correct here, sky from raytrace gets corrected... */
|
|
/* exposure correction */
|
|
if(R.wrld.exp!=0.0 || R.wrld.range!=1.0) {
|
|
if((shi.mat->mode & MA_SHLESS)==0) {
|
|
shr->combined[0]= R.wrld.linfac*(1.0-exp( shr->combined[0]*R.wrld.logfac) );
|
|
shr->combined[1]= R.wrld.linfac*(1.0-exp( shr->combined[1]*R.wrld.logfac) );
|
|
shr->combined[2]= R.wrld.linfac*(1.0-exp( shr->combined[2]*R.wrld.logfac) );
|
|
}
|
|
}
|
|
|
|
/* MIST */
|
|
if((R.wrld.mode & WO_MIST) && (shi.mat->mode & MA_NOMIST)==0 ) {
|
|
if(R.r.mode & R_ORTHO)
|
|
alpha= mistfactor(-shi.co[2], shi.co);
|
|
else
|
|
alpha= mistfactor(zcor, shi.co);
|
|
}
|
|
else alpha= 1.0;
|
|
|
|
if(shr->alpha!=1.0 || alpha!=1.0) {
|
|
if(shi.mat->mode & MA_RAYTRANSP) {
|
|
fac= alpha;
|
|
shr->combined[3]= shr->alpha;
|
|
}
|
|
else {
|
|
fac= alpha*(shr->alpha);
|
|
shr->combined[3]= fac;
|
|
}
|
|
shr->combined[0]*= fac;
|
|
shr->combined[1]*= fac;
|
|
shr->combined[2]*= fac;
|
|
}
|
|
else shr->combined[3]= 1.0;
|
|
}
|
|
|
|
if(R.flag & R_LAMPHALO) {
|
|
if(shpi->layflag & SCE_LAY_HALO) {
|
|
|
|
if(facenr<=0) { /* calc view vector and put shi.co at far */
|
|
if(R.r.mode & R_ORTHO) {
|
|
/* x and y 3d coordinate can be derived from pixel coord and winmat */
|
|
float fx= 2.0/(R.rectx*R.winmat[0][0]);
|
|
float fy= 2.0/(R.recty*R.winmat[1][1]);
|
|
|
|
shi.co[0]= (0.5 + x - 0.5*R.rectx)*fx - R.winmat[3][0]/R.winmat[0][0];
|
|
shi.co[1]= (0.5 + y - 0.5*R.recty)*fy - R.winmat[3][1]/R.winmat[1][1];
|
|
}
|
|
|
|
calc_view_vector(shi.view, x, y);
|
|
shi.co[2]= 0.0;
|
|
|
|
renderspothalo(&shi, shr->combined, 1.0);
|
|
}
|
|
else
|
|
renderspothalo(&shi, shr->combined, shr->combined[3]);
|
|
}
|
|
}
|
|
|
|
return vlr;
|
|
}
|
|
|
|
static void shadepixel_sky(ShadePixelInfo *shpi, float x, float y, int z, int facenr, int mask)
|
|
{
|
|
VlakRen *vlr;
|
|
float collector[4], rco[3];
|
|
|
|
vlr= shadepixel(shpi, x, y, z, facenr, mask, rco);
|
|
if(shpi->shr.combined[3] != 1.0) {
|
|
|
|
/* bail out when raytrace transparency (sky included already) */
|
|
if(vlr && (R.r.mode & R_RAYTRACE))
|
|
if(vlr->mat->mode & MA_RAYTRANSP) return;
|
|
|
|
renderSkyPixelFloat(collector, x, y, vlr?rco:NULL);
|
|
addAlphaOverFloat(collector, shpi->shr.combined);
|
|
QUATCOPY(shpi->shr.combined, collector);
|
|
}
|
|
}
|
|
|
|
/* adds only alpha values */
|
|
static void edge_enhance_calc(RenderPart *pa, float *rectf)
|
|
{
|
|
/* use zbuffer to define edges, add it to the image */
|
|
int y, x, col, *rz, *rz1, *rz2, *rz3;
|
|
int zval1, zval2, zval3;
|
|
float *rf;
|
|
|
|
/* shift values in zbuffer 4 to the right, for filter we need multiplying with 12 max */
|
|
rz= pa->rectz;
|
|
if(rz==NULL) return;
|
|
|
|
for(y=0; y<pa->recty; y++) {
|
|
for(x=0; x<pa->rectx; x++, rz++) (*rz)>>= 4;
|
|
}
|
|
|
|
rz1= pa->rectz;
|
|
rz2= rz1+pa->rectx;
|
|
rz3= rz2+pa->rectx;
|
|
|
|
rf= rectf+pa->rectx+1;
|
|
|
|
for(y=0; y<pa->recty-2; y++) {
|
|
for(x=0; x<pa->rectx-2; x++, rz1++, rz2++, rz3++, rf++) {
|
|
|
|
/* prevent overflow with sky z values */
|
|
zval1= rz1[0] + 2*rz1[1] + rz1[2];
|
|
zval2= 2*rz2[0] + 2*rz2[2];
|
|
zval3= rz3[0] + 2*rz3[1] + rz3[2];
|
|
|
|
col= abs ( 4*rz2[1] - (zval1 + zval2 + zval3)/3 );
|
|
|
|
col >>= 5;
|
|
if(col > (1<<16)) col= (1<<16);
|
|
else col= (R.r.edgeint*col)>>8;
|
|
|
|
if(col>0) {
|
|
float fcol;
|
|
|
|
if(col>255) fcol= 1.0f;
|
|
else fcol= (float)col/255.0f;
|
|
|
|
if(R.osa)
|
|
*rf+= fcol/(float)R.osa;
|
|
else
|
|
*rf= fcol;
|
|
}
|
|
}
|
|
rz1+= 2;
|
|
rz2+= 2;
|
|
rz3+= 2;
|
|
rf+= 2;
|
|
}
|
|
}
|
|
|
|
static void edge_enhance_add(RenderPart *pa, float *rectf, float *arect)
|
|
{
|
|
float addcol[4];
|
|
int pix;
|
|
|
|
for(pix= pa->rectx*pa->recty; pix>0; pix--, arect++, rectf+=4) {
|
|
if(*arect != 0.0f) {
|
|
addcol[0]= *arect * R.r.edgeR;
|
|
addcol[1]= *arect * R.r.edgeG;
|
|
addcol[2]= *arect * R.r.edgeB;
|
|
addcol[3]= *arect;
|
|
addAlphaOverFloat(rectf, addcol);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/* ********************* MAINLOOPS ******************** */
|
|
|
|
static void reset_sky_speedvectors(RenderPart *pa, RenderLayer *rl)
|
|
{
|
|
/* speed vector exception... if solid render was done, sky pixels are set to zero already */
|
|
/* for all pixels with alpha zero, we re-initialize speed again then */
|
|
float *fp, *col;
|
|
int a;
|
|
|
|
fp= RE_RenderLayerGetPass(rl, SCE_PASS_VECTOR);
|
|
if(fp==NULL) return;
|
|
col= rl->rectf+3;
|
|
|
|
for(a= 4*pa->rectx*pa->recty -4; a>=0; a-=4) {
|
|
if(col[a]==0.0f) {
|
|
fp[a]= PASS_VECTOR_MAX;
|
|
fp[a+1]= PASS_VECTOR_MAX;
|
|
fp[a+2]= PASS_VECTOR_MAX;
|
|
fp[a+3]= PASS_VECTOR_MAX;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* osa version */
|
|
static void add_filt_passes(RenderLayer *rl, int curmask, int rectx, int offset, ShadeResult *shr)
|
|
{
|
|
RenderPass *rpass;
|
|
|
|
for(rpass= rl->passes.first; rpass; rpass= rpass->next) {
|
|
float *fp, *col= NULL;
|
|
int pixsize= 3;
|
|
|
|
switch(rpass->passtype) {
|
|
case SCE_PASS_RGBA:
|
|
col= shr->col;
|
|
pixsize= 4;
|
|
break;
|
|
case SCE_PASS_DIFFUSE:
|
|
col= shr->diff;
|
|
break;
|
|
case SCE_PASS_SPEC:
|
|
col= shr->spec;
|
|
break;
|
|
case SCE_PASS_SHADOW:
|
|
col= shr->shad;
|
|
break;
|
|
case SCE_PASS_AO:
|
|
col= shr->ao;
|
|
break;
|
|
case SCE_PASS_RAY:
|
|
col= shr->ray;
|
|
break;
|
|
case SCE_PASS_NORMAL:
|
|
col= shr->nor;
|
|
break;
|
|
case SCE_PASS_VECTOR:
|
|
{
|
|
/* add minimum speed in pixel */
|
|
fp= rpass->rect + 4*offset;
|
|
if( (ABS(shr->winspeed[0]) + ABS(shr->winspeed[1]))< (ABS(fp[0]) + ABS(fp[1])) ) {
|
|
fp[0]= shr->winspeed[0];
|
|
fp[1]= shr->winspeed[1];
|
|
}
|
|
if( (ABS(shr->winspeed[2]) + ABS(shr->winspeed[3]))< (ABS(fp[2]) + ABS(fp[3])) ) {
|
|
fp[2]= shr->winspeed[2];
|
|
fp[3]= shr->winspeed[3];
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
if(col) {
|
|
fp= rpass->rect + pixsize*offset;
|
|
add_filt_fmask_pixsize(curmask, col, fp, rectx, pixsize);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* non-osa version */
|
|
static void add_passes(RenderLayer *rl, int offset, ShadeResult *shr)
|
|
{
|
|
RenderPass *rpass;
|
|
|
|
for(rpass= rl->passes.first; rpass; rpass= rpass->next) {
|
|
float *fp, *col= NULL;
|
|
int a, pixsize= 3;
|
|
|
|
switch(rpass->passtype) {
|
|
case SCE_PASS_RGBA:
|
|
col= shr->col;
|
|
pixsize= 4;
|
|
break;
|
|
case SCE_PASS_DIFFUSE:
|
|
col= shr->diff;
|
|
break;
|
|
case SCE_PASS_SPEC:
|
|
col= shr->spec;
|
|
break;
|
|
case SCE_PASS_SHADOW:
|
|
col= shr->shad;
|
|
break;
|
|
case SCE_PASS_AO:
|
|
col= shr->ao;
|
|
break;
|
|
case SCE_PASS_RAY:
|
|
col= shr->ray;
|
|
break;
|
|
case SCE_PASS_NORMAL:
|
|
col= shr->nor;
|
|
break;
|
|
case SCE_PASS_VECTOR:
|
|
col= shr->winspeed;
|
|
pixsize= 4;
|
|
break;
|
|
}
|
|
if(col) {
|
|
fp= rpass->rect + pixsize*offset;
|
|
for(a=0; a<pixsize; a++)
|
|
fp[a]= col[a];
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static void shadeDA_tile(RenderPart *pa, RenderLayer *rl)
|
|
{
|
|
RenderResult *rr= pa->result;
|
|
ShadePixelInfo shpi;
|
|
PixStr *ps;
|
|
float xs, ys;
|
|
float *fcol= shpi.shr.combined, *rf, *rectf= rl->rectf;
|
|
long *rd, *rectdaps= pa->rectdaps;
|
|
int zbuf, samp, curmask, face, mask, fullmask;
|
|
int b, x, y, full_osa, seed, crop=0, offs=0, od, addpassflag;
|
|
|
|
if(R.test_break()) return;
|
|
|
|
/* we set per pixel a fixed seed, for random AO and shadow samples */
|
|
seed= pa->rectx*pa->disprect.ymin;
|
|
|
|
fullmask= (1<<R.osa)-1;
|
|
|
|
/* fill shadepixel info struct */
|
|
shpi.thread= pa->thread;
|
|
shpi.lay= rl->lay;
|
|
shpi.layflag= rl->layflag;
|
|
shpi.passflag= 0;
|
|
|
|
if(rl->passflag & ~(SCE_PASS_Z|SCE_PASS_NORMAL|SCE_PASS_VECTOR|SCE_PASS_COMBINED))
|
|
shpi.passflag= rl->passflag;
|
|
addpassflag= rl->passflag & ~(SCE_PASS_Z|SCE_PASS_COMBINED);
|
|
|
|
/* filtered render, for now we assume only 1 filter size */
|
|
if(pa->crop) {
|
|
crop= 1;
|
|
rectf+= 4*(pa->rectx + 1);
|
|
rectdaps+= pa->rectx + 1;
|
|
offs= pa->rectx + 1;
|
|
}
|
|
|
|
/* scanline updates have to be 2 lines behind */
|
|
rr->renrect.ymin= 0;
|
|
rr->renrect.ymax= -2*crop;
|
|
rr->renlay= rl;
|
|
|
|
for(y=pa->disprect.ymin+crop; y<pa->disprect.ymax-crop; y++, rr->renrect.ymax++) {
|
|
rf= rectf;
|
|
rd= rectdaps;
|
|
od= offs;
|
|
|
|
for(x=pa->disprect.xmin+crop; x<pa->disprect.xmax-crop; x++, rd++, rf+=4, od++) {
|
|
BLI_thread_srandom(pa->thread, seed+x);
|
|
|
|
ps= (PixStr *)(*rd);
|
|
mask= 0;
|
|
|
|
/* complex loop, because empty spots are sky, without mask */
|
|
while(TRUE) {
|
|
|
|
if(ps==NULL) {
|
|
face= 0;
|
|
curmask= (~mask) & fullmask;
|
|
zbuf= 0x7FFFFFFF;
|
|
}
|
|
else {
|
|
face= ps->facenr;
|
|
curmask= ps->mask;
|
|
zbuf= ps->z;
|
|
}
|
|
|
|
/* check osa level */
|
|
if(face==0) full_osa= 0;
|
|
else {
|
|
VlakRen *vlr= RE_findOrAddVlak(&R, (face-1) & RE_QUAD_MASK);
|
|
full_osa= (vlr->flag & R_FULL_OSA);
|
|
}
|
|
|
|
if(full_osa) {
|
|
for(samp=0; samp<R.osa; samp++) {
|
|
if(curmask & (1<<samp)) {
|
|
xs= (float)x + R.jit[samp][0];
|
|
ys= (float)y + R.jit[samp][1];
|
|
shadepixel_sky(&shpi, xs, ys, zbuf, face, (1<<samp));
|
|
|
|
if(R.do_gamma) {
|
|
fcol[0]= gammaCorrect(fcol[0]);
|
|
fcol[1]= gammaCorrect(fcol[1]);
|
|
fcol[2]= gammaCorrect(fcol[2]);
|
|
}
|
|
add_filt_fmask(1<<samp, fcol, rf, pa->rectx);
|
|
|
|
if(addpassflag)
|
|
add_filt_passes(rl, curmask, pa->rectx, od, &shpi.shr);
|
|
}
|
|
}
|
|
}
|
|
else if(curmask) {
|
|
b= R.samples->centmask[curmask];
|
|
xs= (float)x+R.samples->centLut[b & 15];
|
|
ys= (float)y+R.samples->centLut[b>>4];
|
|
shadepixel_sky(&shpi, xs, ys, zbuf, face, curmask);
|
|
|
|
if(R.do_gamma) {
|
|
fcol[0]= gammaCorrect(fcol[0]);
|
|
fcol[1]= gammaCorrect(fcol[1]);
|
|
fcol[2]= gammaCorrect(fcol[2]);
|
|
}
|
|
add_filt_fmask(curmask, fcol, rf, pa->rectx);
|
|
|
|
if(addpassflag)
|
|
add_filt_passes(rl, curmask, pa->rectx, od, &shpi.shr);
|
|
}
|
|
|
|
mask |= curmask;
|
|
|
|
if(ps==NULL) break;
|
|
else ps= ps->next;
|
|
}
|
|
}
|
|
|
|
rectf+= 4*pa->rectx;
|
|
rectdaps+= pa->rectx;
|
|
offs+= pa->rectx;
|
|
seed+= pa->rectx;
|
|
|
|
if(y&1) if(R.test_break()) break;
|
|
}
|
|
|
|
/* disable scanline updating */
|
|
rr->renlay= NULL;
|
|
|
|
if(R.do_gamma) {
|
|
rectf= rl->rectf;
|
|
for(y= pa->rectx*pa->recty; y>0; y--, rectf+=4) {
|
|
rectf[0] = invGammaCorrect(rectf[0]);
|
|
rectf[1] = invGammaCorrect(rectf[1]);
|
|
rectf[2] = invGammaCorrect(rectf[2]);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/* ************* pixel struct ******** */
|
|
|
|
|
|
static PixStrMain *addpsmain(ListBase *lb)
|
|
{
|
|
PixStrMain *psm;
|
|
|
|
psm= (PixStrMain *)MEM_mallocT(sizeof(PixStrMain),"pixstrMain");
|
|
BLI_addtail(lb, psm);
|
|
|
|
psm->ps= (PixStr *)MEM_mallocT(4096*sizeof(PixStr),"pixstr");
|
|
psm->counter= 0;
|
|
|
|
return psm;
|
|
}
|
|
|
|
static void freeps(ListBase *lb)
|
|
{
|
|
PixStrMain *psm, *psmnext;
|
|
|
|
for(psm= lb->first; psm; psm= psmnext) {
|
|
psmnext= psm->next;
|
|
if(psm->ps)
|
|
MEM_freeT(psm->ps);
|
|
MEM_freeT(psm);
|
|
}
|
|
lb->first= lb->last= NULL;
|
|
}
|
|
|
|
static void addps(ListBase *lb, long *rd, int facenr, int z, unsigned short mask)
|
|
{
|
|
PixStrMain *psm;
|
|
PixStr *ps, *last= NULL;
|
|
|
|
if(*rd) {
|
|
ps= (PixStr *)(*rd);
|
|
|
|
while(ps) {
|
|
if( ps->facenr == facenr ) {
|
|
ps->mask |= mask;
|
|
return;
|
|
}
|
|
last= ps;
|
|
ps= ps->next;
|
|
}
|
|
}
|
|
|
|
/* make new PS (pixel struct) */
|
|
psm= lb->last;
|
|
|
|
if(psm->counter==4095)
|
|
psm= addpsmain(lb);
|
|
|
|
ps= psm->ps + psm->counter++;
|
|
|
|
if(last) last->next= ps;
|
|
else *rd= (long)ps;
|
|
|
|
ps->next= NULL;
|
|
ps->facenr= facenr;
|
|
ps->z= z;
|
|
ps->mask = mask;
|
|
}
|
|
|
|
static void make_pixelstructs(RenderPart *pa, ListBase *lb)
|
|
{
|
|
long *rd= pa->rectdaps;
|
|
int *rp= pa->rectp;
|
|
int *rz= pa->rectz;
|
|
int x, y;
|
|
int mask= 1<<pa->sample;
|
|
|
|
for(y=0; y<pa->recty; y++) {
|
|
for(x=0; x<pa->rectx; x++, rd++, rp++) {
|
|
if(*rp) {
|
|
addps(lb, rd, *rp, *(rz+x), mask);
|
|
}
|
|
}
|
|
rz+= pa->rectx;
|
|
}
|
|
}
|
|
|
|
/* supposed to be fully threadable! */
|
|
void zbufshadeDA_tile(RenderPart *pa)
|
|
{
|
|
RenderResult *rr= pa->result;
|
|
RenderLayer *rl;
|
|
ListBase psmlist= {NULL, NULL};
|
|
float *edgerect= NULL;
|
|
|
|
set_part_zbuf_clipflag(pa);
|
|
|
|
/* allocate the necessary buffers */
|
|
/* zbuffer inits these rects */
|
|
pa->rectp= MEM_mallocT(sizeof(int)*pa->rectx*pa->recty, "rectp");
|
|
pa->rectz= MEM_mallocT(sizeof(int)*pa->rectx*pa->recty, "rectz");
|
|
if(R.r.mode & R_EDGE) edgerect= MEM_callocT(sizeof(float)*pa->rectx*pa->recty, "rectedge");
|
|
|
|
for(rl= rr->layers.first; rl; rl= rl->next) {
|
|
|
|
/* initialize pixelstructs */
|
|
addpsmain(&psmlist);
|
|
pa->rectdaps= MEM_callocT(sizeof(long)*pa->rectx*pa->recty+4, "zbufDArectd");
|
|
|
|
/* always fill visibility */
|
|
for(pa->sample=0; pa->sample<R.osa; pa->sample++) {
|
|
zbuffer_solid(pa, rl->lay, rl->layflag);
|
|
make_pixelstructs(pa, &psmlist);
|
|
|
|
if(R.r.mode & R_EDGE) edge_enhance_calc(pa, edgerect);
|
|
if(R.test_break()) break;
|
|
}
|
|
|
|
/* shades solid */
|
|
if(rl->layflag & SCE_LAY_SOLID)
|
|
shadeDA_tile(pa, rl);
|
|
|
|
/* lamphalo after solid, before ztra, looks nicest because ztra does own halo */
|
|
if(R.flag & R_LAMPHALO)
|
|
if(rl->layflag & SCE_LAY_HALO)
|
|
if(!(rl->layflag & SCE_LAY_SOLID))
|
|
lamphalo_tile(pa, rl->rectf, rl->lay);
|
|
|
|
/* transp layer */
|
|
if(R.flag & R_ZTRA) {
|
|
if(rl->layflag & SCE_LAY_ZTRA) {
|
|
float *acolrect= MEM_callocT(4*sizeof(float)*pa->rectx*pa->recty, "alpha layer");
|
|
float *fcol= rl->rectf, *acol= acolrect;
|
|
int x;
|
|
|
|
if(rl->passflag & SCE_PASS_VECTOR)
|
|
if(rl->layflag & SCE_LAY_SOLID)
|
|
reset_sky_speedvectors(pa, rl);
|
|
|
|
/* swap for live updates */
|
|
SWAP(float *, acolrect, rl->rectf);
|
|
zbuffer_transp_shade(pa, rl, rl->rectf);
|
|
SWAP(float *, acolrect, rl->rectf);
|
|
|
|
for(x=pa->rectx*pa->recty; x>0; x--, acol+=4, fcol+=4) {
|
|
addAlphaOverFloat(fcol, acol);
|
|
}
|
|
MEM_freeT(acolrect);
|
|
}
|
|
}
|
|
|
|
/* extra layers */
|
|
if(R.r.mode & R_EDGE)
|
|
edge_enhance_add(pa, rl->rectf, edgerect);
|
|
if(R.flag & R_HALO)
|
|
if(rl->layflag & SCE_LAY_HALO)
|
|
halo_tile(pa, rl->rectf, rl->lay);
|
|
|
|
if(rl->passflag & SCE_PASS_Z)
|
|
convert_zbuf_to_distbuf(pa, rl);
|
|
|
|
/* free stuff within loop! */
|
|
MEM_freeT(pa->rectdaps); pa->rectdaps= NULL;
|
|
freeps(&psmlist);
|
|
}
|
|
|
|
/* free all */
|
|
MEM_freeT(pa->rectp); pa->rectp= NULL;
|
|
MEM_freeT(pa->rectz); pa->rectz= NULL;
|
|
|
|
if(edgerect) MEM_freeT(edgerect);
|
|
|
|
/* display active layer */
|
|
rr->renrect.ymin=rr->renrect.ymax= 0;
|
|
rr->renlay= render_get_active_layer(&R, rr);
|
|
}
|
|
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
/* supposed to be fully threadable! */
|
|
void zbufshade_tile(RenderPart *pa)
|
|
{
|
|
ShadePixelInfo shpi;
|
|
RenderResult *rr= pa->result;
|
|
RenderLayer *rl;
|
|
int addpassflag;
|
|
|
|
set_part_zbuf_clipflag(pa);
|
|
|
|
/* zbuffer code clears/inits rects */
|
|
pa->rectp= MEM_mallocT(sizeof(int)*pa->rectx*pa->recty, "rectp");
|
|
pa->rectz= MEM_mallocT(sizeof(int)*pa->rectx*pa->recty, "rectz");
|
|
|
|
shpi.thread= pa->thread;
|
|
|
|
for(rl= rr->layers.first; rl; rl= rl->next) {
|
|
|
|
/* fill shadepixel info struct */
|
|
shpi.lay= rl->lay;
|
|
shpi.layflag= rl->layflag;
|
|
shpi.passflag= 0;
|
|
|
|
if(rl->passflag & ~(SCE_PASS_Z|SCE_PASS_NORMAL|SCE_PASS_VECTOR|SCE_PASS_COMBINED))
|
|
shpi.passflag= rl->passflag;
|
|
addpassflag= rl->passflag & ~(SCE_PASS_Z|SCE_PASS_COMBINED);
|
|
|
|
zbuffer_solid(pa, rl->lay, rl->layflag);
|
|
|
|
if(!R.test_break()) {
|
|
if(rl->layflag & SCE_LAY_SOLID) {
|
|
float *fcol= rl->rectf;
|
|
int x, y, *rp= pa->rectp, *rz= pa->rectz, offs=0;
|
|
|
|
/* initialize scanline updates for main thread */
|
|
rr->renrect.ymin= 0;
|
|
rr->renlay= rl;
|
|
|
|
for(y=pa->disprect.ymin; y<pa->disprect.ymax; y++, rr->renrect.ymax++) {
|
|
for(x=pa->disprect.xmin; x<pa->disprect.xmax; x++, rz++, rp++, fcol+=4, offs++) {
|
|
shadepixel_sky(&shpi, (float)x, (float)y, *rz, *rp, 0);
|
|
QUATCOPY(fcol, shpi.shr.combined);
|
|
|
|
/* passes */
|
|
if(addpassflag)
|
|
add_passes(rl, offs, &shpi.shr);
|
|
}
|
|
if(y&1)
|
|
if(R.test_break()) break;
|
|
}
|
|
|
|
/* disable scanline updating */
|
|
rr->renlay= NULL;
|
|
}
|
|
}
|
|
|
|
/* lamphalo after solid, before ztra, looks nicest because ztra does own halo */
|
|
if(R.flag & R_LAMPHALO)
|
|
if(rl->layflag & SCE_LAY_HALO)
|
|
if(!(rl->layflag & SCE_LAY_SOLID))
|
|
lamphalo_tile(pa, rl->rectf, rl->lay);
|
|
|
|
if(R.flag & R_ZTRA) {
|
|
if(rl->layflag & SCE_LAY_ZTRA) {
|
|
float *acolrect= MEM_callocT(4*sizeof(float)*pa->rectx*pa->recty, "alpha layer");
|
|
float *fcol= rl->rectf, *acol= acolrect;
|
|
int x;
|
|
|
|
if(addpassflag & SCE_PASS_VECTOR)
|
|
if(rl->layflag & SCE_LAY_SOLID)
|
|
reset_sky_speedvectors(pa, rl);
|
|
|
|
/* swap for live updates */
|
|
SWAP(float *, acolrect, rl->rectf);
|
|
zbuffer_transp_shade(pa, rl, rl->rectf);
|
|
SWAP(float *, acolrect, rl->rectf);
|
|
|
|
for(x=pa->rectx*pa->recty; x>0; x--, acol+=4, fcol+=4) {
|
|
addAlphaOverFloat(fcol, acol);
|
|
}
|
|
MEM_freeT(acolrect);
|
|
}
|
|
}
|
|
|
|
if(!R.test_break()) {
|
|
if(R.r.mode & R_EDGE) {
|
|
fillrect(pa->rectp, pa->rectx, pa->recty, 0);
|
|
edge_enhance_calc(pa, (float *)pa->rectp);
|
|
edge_enhance_add(pa, rl->rectf, (float *)pa->rectp);
|
|
}
|
|
}
|
|
|
|
if(R.flag & R_HALO)
|
|
if(rl->layflag & SCE_LAY_HALO)
|
|
halo_tile(pa, rl->rectf, rl->lay);
|
|
|
|
if(rl->passflag & SCE_PASS_Z)
|
|
convert_zbuf_to_distbuf(pa, rl);
|
|
|
|
}
|
|
|
|
/* display active layer */
|
|
rr->renrect.ymin=rr->renrect.ymax= 0;
|
|
rr->renlay= render_get_active_layer(&R, rr);
|
|
|
|
MEM_freeT(pa->rectp); pa->rectp= NULL;
|
|
MEM_freeT(pa->rectz); pa->rectz= NULL;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
static void renderhalo(HaloRen *har) /* postprocess version */
|
|
{
|
|
#if 0
|
|
float dist, xsq, ysq, xn, yn, colf[4], *rectft, *rtf;
|
|
int *rectt, *rt;
|
|
int minx, maxx, miny, maxy, x, y;
|
|
char col[4];
|
|
|
|
har->miny= miny= har->ys - har->rad/R.ycor;
|
|
har->maxy= maxy= har->ys + har->rad/R.ycor;
|
|
|
|
if(maxy<0);
|
|
else if(R.recty<miny);
|
|
else {
|
|
minx= floor(har->xs-har->rad);
|
|
maxx= ceil(har->xs+har->rad);
|
|
|
|
if(maxx<0);
|
|
else if(R.rectx<minx);
|
|
else {
|
|
|
|
if(minx<0) minx= 0;
|
|
if(maxx>=R.rectx) maxx= R.rectx-1;
|
|
if(miny<0) miny= 0;
|
|
if(maxy>R.recty) maxy= R.recty;
|
|
|
|
rectt= R.rectot+ R.rectx*miny;
|
|
rectft= R.rectftot+ 4*R.rectx*miny;
|
|
|
|
for(y=miny; y<maxy; y++) {
|
|
|
|
rt= rectt+minx;
|
|
rtf= rectft+4*minx;
|
|
|
|
yn= (y - har->ys)*R.ycor;
|
|
ysq= yn*yn;
|
|
|
|
for(x=minx; x<=maxx; x++) {
|
|
xn= x - har->xs;
|
|
xsq= xn*xn;
|
|
dist= xsq+ysq;
|
|
if(dist<har->radsq) {
|
|
|
|
shadeHaloFloat(har, colf, 0x7FFFFF, dist, xn, yn, har->flarec);
|
|
if(R.rectftot) addalphaAddfacFloat(rtf, colf, har->add);
|
|
else {
|
|
std_floatcol_to_charcol(colf, col);
|
|
addalphaAddfac((char *)rt, col, har->add);
|
|
}
|
|
}
|
|
rt++;
|
|
rtf+=4;
|
|
}
|
|
|
|
rectt+= R.rectx;
|
|
rectft+= 4*R.rectx;
|
|
|
|
if(R.test_break()) break;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
/* ------------------------------------------------------------------------ */
|
|
|
|
static void renderflare(HaloRen *har)
|
|
{
|
|
extern float hashvectf[];
|
|
HaloRen fla;
|
|
Material *ma;
|
|
float *rc, rad, alfa, visifac, vec[3];
|
|
int b, type;
|
|
|
|
fla= *har;
|
|
fla.linec= fla.ringc= fla.flarec= 0;
|
|
|
|
rad= har->rad;
|
|
alfa= har->alfa;
|
|
|
|
visifac= R.ycor*(har->pixels);
|
|
/* all radials added / r^3 == 1.0! */
|
|
visifac /= (har->rad*har->rad*har->rad);
|
|
visifac*= visifac;
|
|
|
|
ma= har->mat;
|
|
|
|
/* first halo: just do */
|
|
|
|
har->rad= rad*ma->flaresize*visifac;
|
|
har->radsq= har->rad*har->rad;
|
|
har->zs= fla.zs= 0;
|
|
|
|
har->alfa= alfa*visifac;
|
|
|
|
renderhalo(har);
|
|
|
|
/* next halo's: the flares */
|
|
rc= hashvectf + ma->seed2;
|
|
|
|
for(b=1; b<har->flarec; b++) {
|
|
|
|
fla.r= fabs(rc[0]);
|
|
fla.g= fabs(rc[1]);
|
|
fla.b= fabs(rc[2]);
|
|
fla.alfa= ma->flareboost*fabs(alfa*visifac*rc[3]);
|
|
fla.hard= 20.0 + fabs(70*rc[7]);
|
|
fla.tex= 0;
|
|
|
|
type= (int)(fabs(3.9*rc[6]));
|
|
|
|
fla.rad= ma->subsize*sqrt(fabs(2.0*har->rad*rc[4]));
|
|
|
|
if(type==3) {
|
|
fla.rad*= 3.0;
|
|
fla.rad+= R.rectx/10;
|
|
}
|
|
|
|
fla.radsq= fla.rad*fla.rad;
|
|
|
|
vec[0]= 1.4*rc[5]*(har->xs-R.winx/2);
|
|
vec[1]= 1.4*rc[5]*(har->ys-R.winy/2);
|
|
vec[2]= 32.0*sqrt(vec[0]*vec[0] + vec[1]*vec[1] + 1.0);
|
|
|
|
fla.xs= R.winx/2 + vec[0] + (1.2+rc[8])*R.rectx*vec[0]/vec[2];
|
|
fla.ys= R.winy/2 + vec[1] + (1.2+rc[8])*R.rectx*vec[1]/vec[2];
|
|
|
|
if(R.flag & R_SEC_FIELD) {
|
|
if(R.r.mode & R_ODDFIELD) fla.ys += 0.5;
|
|
else fla.ys -= 0.5;
|
|
}
|
|
if(type & 1) fla.type= HA_FLARECIRC;
|
|
else fla.type= 0;
|
|
renderhalo(&fla);
|
|
|
|
fla.alfa*= 0.5;
|
|
if(type & 2) fla.type= HA_FLARECIRC;
|
|
else fla.type= 0;
|
|
renderhalo(&fla);
|
|
|
|
rc+= 7;
|
|
}
|
|
}
|
|
|
|
/* needs recode... integrate this! */
|
|
void add_halo_flare(void)
|
|
{
|
|
HaloRen *har = NULL;
|
|
int a, mode;
|
|
|
|
mode= R.r.mode;
|
|
R.r.mode &= ~R_PANORAMA;
|
|
// R.xstart= -R.afmx;
|
|
// R.ystart= -R.afmy;
|
|
// R.xend= R.xstart+R.rectx-1;
|
|
// R.yend= R.ystart+R.recty-1;
|
|
|
|
// RE_setwindowclip(1,-1); /* no jit:(-1) */
|
|
project_renderdata(&R, projectverto, 0, 0);
|
|
|
|
for(a=0; a<R.tothalo; a++) {
|
|
if((a & 255)==0) har= R.bloha[a>>8];
|
|
else har++;
|
|
|
|
if(har->flarec) {
|
|
renderflare(har);
|
|
}
|
|
}
|
|
|
|
R.r.mode= mode;
|
|
|
|
}
|
|
|
|
|
|
/* end of render.c */
|
|
|
|
|