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test2/source/blender/blenkernel/intern/cdderivedmesh.c
Brecht Van Lommel 1327833282 Sculpt: WIP brush behavior changes 
* Draw/Inflate/Layer now keep working on the original mesh coordinates and
  normals from when the stroke started. This helps avoid the mesh blowing
  up, but can still be better. The old behavior is still available as
  "Accumulate" in the UI.
* This requires some more memory usage for the BVH, would like to find a
  way to avoid that.
* Smooth falloff is now the default.
* Spacing is now enabled by default, with a value of 7.5.
* Anchored now stores normals per node to save some memory.
2009-11-06 16:46:35 +00:00

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/*
* $Id$
*
* ***** 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) 2006 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Ben Batt <benbatt@gmail.com>
*
* ***** END GPL LICENSE BLOCK *****
*
* Implementation of CDDerivedMesh.
*
* BKE_cdderivedmesh.h contains the function prototypes for this file.
*
*/
/* TODO maybe BIF_gl.h should include string.h? */
#include <string.h>
#include "BIF_gl.h"
#include "BKE_cdderivedmesh.h"
#include "BKE_customdata.h"
#include "BKE_DerivedMesh.h"
#include "BKE_displist.h"
#include "BKE_global.h"
#include "BKE_mesh.h"
#include "BKE_multires.h"
#include "BKE_utildefines.h"
#include "BLI_arithb.h"
#include "BLI_blenlib.h"
#include "BLI_edgehash.h"
#include "BLI_editVert.h"
#include "BLI_pbvh.h"
#include "DNA_mesh_types.h"
#include "DNA_meshdata_types.h"
#include "DNA_modifier_types.h"
#include "DNA_object_fluidsim.h"
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "MEM_guardedalloc.h"
#include "gpu_buffers.h"
#include "GPU_draw.h"
#include "GPU_extensions.h"
#include "GPU_material.h"
#include <string.h>
#include <limits.h>
#include <math.h>
typedef struct {
DerivedMesh dm;
/* these point to data in the DerivedMesh custom data layers,
they are only here for efficiency and convenience **/
MVert *mvert;
MEdge *medge;
MFace *mface;
/* Cached */
struct PBVH *pbvh;
/* Mesh connectivity */
struct ListBase *fmap;
struct IndexNode *fmap_mem;
} CDDerivedMesh;
/**************** DerivedMesh interface functions ****************/
static int cdDM_getNumVerts(DerivedMesh *dm)
{
return dm->numVertData;
}
static int cdDM_getNumEdges(DerivedMesh *dm)
{
return dm->numEdgeData;
}
static int cdDM_getNumFaces(DerivedMesh *dm)
{
return dm->numFaceData;
}
static void cdDM_getVert(DerivedMesh *dm, int index, MVert *vert_r)
{
CDDerivedMesh *cddm = (CDDerivedMesh *)dm;
*vert_r = cddm->mvert[index];
}
static void cdDM_getEdge(DerivedMesh *dm, int index, MEdge *edge_r)
{
CDDerivedMesh *cddm = (CDDerivedMesh *)dm;
*edge_r = cddm->medge[index];
}
static void cdDM_getFace(DerivedMesh *dm, int index, MFace *face_r)
{
CDDerivedMesh *cddm = (CDDerivedMesh *)dm;
*face_r = cddm->mface[index];
}
static void cdDM_copyVertArray(DerivedMesh *dm, MVert *vert_r)
{
CDDerivedMesh *cddm = (CDDerivedMesh *)dm;
memcpy(vert_r, cddm->mvert, sizeof(*vert_r) * dm->numVertData);
}
static void cdDM_copyEdgeArray(DerivedMesh *dm, MEdge *edge_r)
{
CDDerivedMesh *cddm = (CDDerivedMesh *)dm;
memcpy(edge_r, cddm->medge, sizeof(*edge_r) * dm->numEdgeData);
}
static void cdDM_copyFaceArray(DerivedMesh *dm, MFace *face_r)
{
CDDerivedMesh *cddm = (CDDerivedMesh *)dm;
memcpy(face_r, cddm->mface, sizeof(*face_r) * dm->numFaceData);
}
static void cdDM_getMinMax(DerivedMesh *dm, float min_r[3], float max_r[3])
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
int i;
if (dm->numVertData) {
for (i=0; i<dm->numVertData; i++) {
DO_MINMAX(cddm->mvert[i].co, min_r, max_r);
}
} else {
min_r[0] = min_r[1] = min_r[2] = max_r[0] = max_r[1] = max_r[2] = 0.0;
}
}
static void cdDM_getVertCo(DerivedMesh *dm, int index, float co_r[3])
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
VECCOPY(co_r, cddm->mvert[index].co);
}
static void cdDM_getVertCos(DerivedMesh *dm, float (*cos_r)[3])
{
MVert *mv = CDDM_get_verts(dm);
int i;
for(i = 0; i < dm->numVertData; i++, mv++)
VECCOPY(cos_r[i], mv->co);
}
static void cdDM_getVertNo(DerivedMesh *dm, int index, float no_r[3])
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
short *no = cddm->mvert[index].no;
no_r[0] = no[0]/32767.f;
no_r[1] = no[1]/32767.f;
no_r[2] = no[2]/32767.f;
}
static ListBase *cdDM_getFaceMap(DerivedMesh *dm)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
if(!cddm->fmap) {
create_vert_face_map(&cddm->fmap, &cddm->fmap_mem, cddm->mface,
dm->getNumVerts(dm), dm->getNumFaces(dm));
printf("rebuild fmap\n");
}
return cddm->fmap;
}
static struct PBVH *cdDM_getPBVH(DerivedMesh *dm)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
if(!cddm->pbvh) {
cddm->pbvh = BLI_pbvh_new();
BLI_pbvh_build(cddm->pbvh, cddm->mface, cddm->mvert,
dm->getNumFaces(dm), dm->getNumVerts(dm));
printf("rebuild pbvh\n");
}
return cddm->pbvh;
}
static void cdDM_drawVerts(DerivedMesh *dm)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
MVert *mv = cddm->mvert;
int i;
if( GPU_buffer_legacy(dm) ) {
glBegin(GL_POINTS);
for(i = 0; i < dm->numVertData; i++, mv++)
glVertex3fv(mv->co);
glEnd();
}
else { /* use OpenGL VBOs or Vertex Arrays instead for better, faster rendering */
GPU_vertex_setup(dm);
if( !GPU_buffer_legacy(dm) ) {
glDrawArrays(GL_POINTS,0,dm->drawObject->nelements);
}
GPU_buffer_unbind();
}
}
static void cdDM_drawUVEdges(DerivedMesh *dm)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
MFace *mf = cddm->mface;
MTFace *tf = DM_get_face_data_layer(dm, CD_MTFACE);
int i;
if(mf) {
if( GPU_buffer_legacy(dm) ) {
glBegin(GL_LINES);
for(i = 0; i < dm->numFaceData; i++, mf++, tf++) {
if(!(mf->flag&ME_HIDE)) {
glVertex2fv(tf->uv[0]);
glVertex2fv(tf->uv[1]);
glVertex2fv(tf->uv[1]);
glVertex2fv(tf->uv[2]);
if(!mf->v4) {
glVertex2fv(tf->uv[2]);
glVertex2fv(tf->uv[0]);
} else {
glVertex2fv(tf->uv[2]);
glVertex2fv(tf->uv[3]);
glVertex2fv(tf->uv[3]);
glVertex2fv(tf->uv[0]);
}
}
}
glEnd();
}
else {
int prevstart = 0;
int prevdraw = 1;
int draw = 1;
int curpos = 0;
GPU_uvedge_setup(dm);
if( !GPU_buffer_legacy(dm) ) {
for(i = 0; i < dm->numFaceData; i++, mf++) {
if(mf->flag&ME_LOOSEEDGE) {
draw = 1;
}
else {
draw = 0;
}
if( prevdraw != draw ) {
if( prevdraw > 0 && (curpos-prevstart) > 0) {
glDrawArrays(GL_LINES,prevstart,curpos-prevstart);
}
prevstart = curpos;
}
if( mf->v4 ) {
curpos += 8;
}
else {
curpos += 6;
}
prevdraw = draw;
}
if( prevdraw > 0 && (curpos-prevstart) > 0 ) {
glDrawArrays(GL_LINES,prevstart,curpos-prevstart);
}
}
GPU_buffer_unbind();
}
}
}
static void cdDM_drawEdges(DerivedMesh *dm, int drawLooseEdges)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
MVert *mvert = cddm->mvert;
MEdge *medge = cddm->medge;
int i;
if( GPU_buffer_legacy(dm) ) {
DEBUG_VBO( "Using legacy code. cdDM_drawEdges\n" );
glBegin(GL_LINES);
for(i = 0; i < dm->numEdgeData; i++, medge++) {
if((medge->flag&ME_EDGEDRAW)
&& (drawLooseEdges || !(medge->flag&ME_LOOSEEDGE))) {
glVertex3fv(mvert[medge->v1].co);
glVertex3fv(mvert[medge->v2].co);
}
}
glEnd();
}
else { /* use OpenGL VBOs or Vertex Arrays instead for better, faster rendering */
int prevstart = 0;
int prevdraw = 1;
int draw = 1;
GPU_edge_setup(dm);
if( !GPU_buffer_legacy(dm) ) {
for(i = 0; i < dm->numEdgeData; i++, medge++) {
if((medge->flag&ME_EDGEDRAW)
&& (drawLooseEdges || !(medge->flag&ME_LOOSEEDGE))) {
draw = 1;
}
else {
draw = 0;
}
if( prevdraw != draw ) {
if( prevdraw > 0 && (i-prevstart) > 0 ) {
GPU_buffer_draw_elements( dm->drawObject->edges, GL_LINES, prevstart*2, (i-prevstart)*2 );
}
prevstart = i;
}
prevdraw = draw;
}
if( prevdraw > 0 && (i-prevstart) > 0 ) {
GPU_buffer_draw_elements( dm->drawObject->edges, GL_LINES, prevstart*2, (i-prevstart)*2 );
}
}
GPU_buffer_unbind();
}
}
static void cdDM_drawLooseEdges(DerivedMesh *dm)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
MVert *mvert = cddm->mvert;
MEdge *medge = cddm->medge;
int i;
if( GPU_buffer_legacy(dm) ) {
DEBUG_VBO( "Using legacy code. cdDM_drawLooseEdges\n" );
glBegin(GL_LINES);
for(i = 0; i < dm->numEdgeData; i++, medge++) {
if(medge->flag&ME_LOOSEEDGE) {
glVertex3fv(mvert[medge->v1].co);
glVertex3fv(mvert[medge->v2].co);
}
}
glEnd();
}
else { /* use OpenGL VBOs or Vertex Arrays instead for better, faster rendering */
int prevstart = 0;
int prevdraw = 1;
int draw = 1;
GPU_edge_setup(dm);
if( !GPU_buffer_legacy(dm) ) {
for(i = 0; i < dm->numEdgeData; i++, medge++) {
if(medge->flag&ME_LOOSEEDGE) {
draw = 1;
}
else {
draw = 0;
}
if( prevdraw != draw ) {
if( prevdraw > 0 && (i-prevstart) > 0) {
GPU_buffer_draw_elements( dm->drawObject->edges, GL_LINES, prevstart*2, (i-prevstart)*2 );
}
prevstart = i;
}
prevdraw = draw;
}
if( prevdraw > 0 && (i-prevstart) > 0 ) {
GPU_buffer_draw_elements( dm->drawObject->edges, GL_LINES, prevstart*2, (i-prevstart)*2 );
}
}
GPU_buffer_unbind();
}
}
static int nodes_drawn = 0;
static int is_partial = 0;
/* XXX: Just a temporary replacement for the real drawing code */
static void draw_partial_cb(PBVHNode *node, void *data)
{
/* XXX: Just some quick code to show leaf nodes in different colors */
/*float col[3]; int i;
if(is_partial) {
col[0] = (rand() / (float)RAND_MAX); col[1] = col[2] = 0.6;
}
else {
srand((long long)data_v);
for(i = 0; i < 3; ++i)
col[i] = (rand() / (float)RAND_MAX) * 0.3 + 0.7;
}
glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, col);
glColor3f(1, 0, 0);*/
GPU_draw_buffers(BLI_pbvh_node_get_draw_buffers(node));
++nodes_drawn;
}
/* Adapted from:
http://www.gamedev.net/community/forums/topic.asp?topic_id=512123
Returns true if the AABB is at least partially within the frustum
(ok, not a real frustum), false otherwise.
*/
int planes_contain_AABB(PBVHNode *node, void *data)
{
float (*planes)[4] = data;
int i, axis;
float vmin[3], vmax[3], bb_min[3], bb_max[3];
BLI_pbvh_node_get_BB(node, bb_min, bb_max);
for(i = 0; i < 4; ++i) {
for(axis = 0; axis < 3; ++axis) {
if(planes[i][axis] > 0) {
vmin[axis] = bb_min[axis];
vmax[axis] = bb_max[axis];
}
else {
vmin[axis] = bb_max[axis];
vmax[axis] = bb_min[axis];
}
}
if(Inpf(planes[i], vmin) + planes[i][3] > 0)
return 0;
}
return 1;
}
static void cdDM_drawFacesSolid(DerivedMesh *dm,
float (*partial_redraw_planes)[4],
int (*setMaterial)(int, void *attribs))
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
MVert *mvert = cddm->mvert;
MFace *mface = cddm->mface;
float *nors= dm->getFaceDataArray(dm, CD_NORMAL);
int a, glmode = -1, shademodel = -1, matnr = -1, drawCurrentMat = 1;
#define PASSVERT(index) { \
if(shademodel == GL_SMOOTH) { \
short *no = mvert[index].no; \
glNormal3sv(no); \
} \
glVertex3fv(mvert[index].co); \
}
if(cddm->pbvh) {
float (*face_nors)[3] = CustomData_get_layer(&dm->faceData, CD_NORMAL);
BLI_pbvh_update(cddm->pbvh, PBVH_UpdateNormals|PBVH_UpdateDrawBuffers,
face_nors);
/* should be per face */
if(dm->numFaceData && mface->flag & ME_SMOOTH)
glShadeModel(GL_SMOOTH);
if(partial_redraw_planes) {
BLI_pbvh_search_callback(cddm->pbvh, planes_contain_AABB,
partial_redraw_planes, draw_partial_cb, NULL);
}
else {
BLI_pbvh_search_callback(cddm->pbvh, NULL, NULL,
draw_partial_cb, NULL);
}
is_partial = !!partial_redraw_planes;
//printf("nodes drawn=%d\n", nodes_drawn);
nodes_drawn = 0;
glShadeModel(GL_FLAT);
return;
}
if( GPU_buffer_legacy(dm) ) {
DEBUG_VBO( "Using legacy code. cdDM_drawFacesSolid\n" );
glBegin(glmode = GL_QUADS);
for(a = 0; a < dm->numFaceData; a++, mface++) {
int new_glmode, new_matnr, new_shademodel;
new_glmode = mface->v4?GL_QUADS:GL_TRIANGLES;
new_matnr = mface->mat_nr + 1;
new_shademodel = (mface->flag & ME_SMOOTH)?GL_SMOOTH:GL_FLAT;
if(new_glmode != glmode || new_matnr != matnr
|| new_shademodel != shademodel) {
glEnd();
drawCurrentMat = setMaterial(matnr = new_matnr, NULL);
glShadeModel(shademodel = new_shademodel);
glBegin(glmode = new_glmode);
}
if(drawCurrentMat) {
if(shademodel == GL_FLAT) {
if (nors) {
glNormal3fv(nors);
}
else {
/* TODO make this better (cache facenormals as layer?) */
float nor[3];
if(mface->v4) {
CalcNormFloat4(mvert[mface->v1].co, mvert[mface->v2].co,
mvert[mface->v3].co, mvert[mface->v4].co,
nor);
} else {
CalcNormFloat(mvert[mface->v1].co, mvert[mface->v2].co,
mvert[mface->v3].co, nor);
}
glNormal3fv(nor);
}
}
PASSVERT(mface->v1);
PASSVERT(mface->v2);
PASSVERT(mface->v3);
if(mface->v4) {
PASSVERT(mface->v4);
}
}
if(nors) nors += 3;
}
glEnd();
}
else { /* use OpenGL VBOs or Vertex Arrays instead for better, faster rendering */
GPU_vertex_setup( dm );
GPU_normal_setup( dm );
if( !GPU_buffer_legacy(dm) ) {
glShadeModel(GL_SMOOTH);
for( a = 0; a < dm->drawObject->nmaterials; a++ ) {
if( setMaterial(dm->drawObject->materials[a].mat_nr+1, NULL) )
glDrawArrays(GL_TRIANGLES, dm->drawObject->materials[a].start, dm->drawObject->materials[a].end-dm->drawObject->materials[a].start);
}
}
GPU_buffer_unbind( );
}
#undef PASSVERT
glShadeModel(GL_FLAT);
}
static void cdDM_drawFacesColored(DerivedMesh *dm, int useTwoSided, unsigned char *col1, unsigned char *col2)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
int a, glmode;
unsigned char *cp1, *cp2;
MVert *mvert = cddm->mvert;
MFace *mface = cddm->mface;
cp1 = col1;
if(col2) {
cp2 = col2;
} else {
cp2 = NULL;
useTwoSided = 0;
}
/* there's a conflict here... twosided colors versus culling...? */
/* defined by history, only texture faces have culling option */
/* we need that as mesh option builtin, next to double sided lighting */
if(col1 && col2)
glEnable(GL_CULL_FACE);
if( GPU_buffer_legacy(dm) ) {
DEBUG_VBO( "Using legacy code. cdDM_drawFacesColored\n" );
glShadeModel(GL_SMOOTH);
glBegin(glmode = GL_QUADS);
for(a = 0; a < dm->numFaceData; a++, mface++, cp1 += 16) {
int new_glmode = mface->v4?GL_QUADS:GL_TRIANGLES;
if(new_glmode != glmode) {
glEnd();
glBegin(glmode = new_glmode);
}
glColor3ub(cp1[0], cp1[1], cp1[2]);
glVertex3fv(mvert[mface->v1].co);
glColor3ub(cp1[4], cp1[5], cp1[6]);
glVertex3fv(mvert[mface->v2].co);
glColor3ub(cp1[8], cp1[9], cp1[10]);
glVertex3fv(mvert[mface->v3].co);
if(mface->v4) {
glColor3ub(cp1[12], cp1[13], cp1[14]);
glVertex3fv(mvert[mface->v4].co);
}
if(useTwoSided) {
glColor3ub(cp2[8], cp2[9], cp2[10]);
glVertex3fv(mvert[mface->v3].co );
glColor3ub(cp2[4], cp2[5], cp2[6]);
glVertex3fv(mvert[mface->v2].co );
glColor3ub(cp2[0], cp2[1], cp2[2]);
glVertex3fv(mvert[mface->v1].co );
if(mface->v4) {
glColor3ub(cp2[12], cp2[13], cp2[14]);
glVertex3fv(mvert[mface->v4].co );
}
}
if(col2) cp2 += 16;
}
glEnd();
}
else { /* use OpenGL VBOs or Vertex Arrays instead for better, faster rendering */
GPU_color4_upload(dm,cp1);
GPU_vertex_setup(dm);
GPU_color_setup(dm);
if( !GPU_buffer_legacy(dm) ) {
glShadeModel(GL_SMOOTH);
glDrawArrays(GL_TRIANGLES, 0, dm->drawObject->nelements);
if( useTwoSided ) {
GPU_color4_upload(dm,cp2);
GPU_color_setup(dm);
glCullFace(GL_FRONT);
glDrawArrays(GL_TRIANGLES, 0, dm->drawObject->nelements);
glCullFace(GL_BACK);
}
}
GPU_buffer_unbind();
}
glShadeModel(GL_FLAT);
glDisable(GL_CULL_FACE);
}
static void cdDM_drawFacesTex_common(DerivedMesh *dm,
int (*drawParams)(MTFace *tface, MCol *mcol, int matnr),
int (*drawParamsMapped)(void *userData, int index),
void *userData)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
MVert *mv = cddm->mvert;
MFace *mf = DM_get_face_data_layer(dm, CD_MFACE);
MCol *realcol = dm->getFaceDataArray(dm, CD_TEXTURE_MCOL);
float *nors= dm->getFaceDataArray(dm, CD_NORMAL);
MTFace *tf = DM_get_face_data_layer(dm, CD_MTFACE);
int i, j, orig, *index = DM_get_face_data_layer(dm, CD_ORIGINDEX);
int startFace = 0, lastFlag = 0xdeadbeef;
MCol *mcol = dm->getFaceDataArray(dm, CD_WEIGHT_MCOL);
if(!mcol)
mcol = dm->getFaceDataArray(dm, CD_MCOL);
if( GPU_buffer_legacy(dm) ) {
DEBUG_VBO( "Using legacy code. cdDM_drawFacesTex_common\n" );
for(i = 0; i < dm->numFaceData; i++, mf++) {
MVert *mvert;
int flag;
unsigned char *cp = NULL;
if(drawParams) {
flag = drawParams(tf? &tf[i]: NULL, mcol? &mcol[i*4]: NULL, mf->mat_nr);
}
else {
if(index) {
orig = *index++;
if(orig == ORIGINDEX_NONE) { if(nors) nors += 3; continue; }
if(drawParamsMapped) flag = drawParamsMapped(userData, orig);
else { if(nors) nors += 3; continue; }
}
else
if(drawParamsMapped) flag = drawParamsMapped(userData, i);
else { if(nors) nors += 3; continue; }
}
if(flag != 0) {
if (flag==1 && mcol)
cp= (unsigned char*) &mcol[i*4];
if(!(mf->flag&ME_SMOOTH)) {
if (nors) {
glNormal3fv(nors);
}
else {
float nor[3];
if(mf->v4) {
CalcNormFloat4(mv[mf->v1].co, mv[mf->v2].co,
mv[mf->v3].co, mv[mf->v4].co,
nor);
} else {
CalcNormFloat(mv[mf->v1].co, mv[mf->v2].co,
mv[mf->v3].co, nor);
}
glNormal3fv(nor);
}
}
glBegin(mf->v4?GL_QUADS:GL_TRIANGLES);
if(tf) glTexCoord2fv(tf[i].uv[0]);
if(cp) glColor3ub(cp[3], cp[2], cp[1]);
mvert = &mv[mf->v1];
if(mf->flag&ME_SMOOTH) glNormal3sv(mvert->no);
glVertex3fv(mvert->co);
if(tf) glTexCoord2fv(tf[i].uv[1]);
if(cp) glColor3ub(cp[7], cp[6], cp[5]);
mvert = &mv[mf->v2];
if(mf->flag&ME_SMOOTH) glNormal3sv(mvert->no);
glVertex3fv(mvert->co);
if(tf) glTexCoord2fv(tf[i].uv[2]);
if(cp) glColor3ub(cp[11], cp[10], cp[9]);
mvert = &mv[mf->v3];
if(mf->flag&ME_SMOOTH) glNormal3sv(mvert->no);
glVertex3fv(mvert->co);
if(mf->v4) {
if(tf) glTexCoord2fv(tf[i].uv[3]);
if(cp) glColor3ub(cp[15], cp[14], cp[13]);
mvert = &mv[mf->v4];
if(mf->flag&ME_SMOOTH) glNormal3sv(mvert->no);
glVertex3fv(mvert->co);
}
glEnd();
}
if(nors) nors += 3;
}
} else { /* use OpenGL VBOs or Vertex Arrays instead for better, faster rendering */
MCol *col = realcol;
if(!col)
col = mcol;
GPU_vertex_setup( dm );
GPU_normal_setup( dm );
GPU_uv_setup( dm );
if( col != 0 ) {
/*if( realcol && dm->drawObject->colType == CD_TEXTURE_MCOL ) {
col = 0;
} else if( mcol && dm->drawObject->colType == CD_MCOL ) {
col = 0;
}
if( col != 0 ) {*/
unsigned char *colors = MEM_mallocN(dm->getNumFaces(dm)*4*3*sizeof(unsigned char), "cdDM_drawFacesTex_common");
for( i=0; i < dm->getNumFaces(dm); i++ ) {
for( j=0; j < 4; j++ ) {
colors[i*12+j*3] = col[i*4+j].r;
colors[i*12+j*3+1] = col[i*4+j].g;
colors[i*12+j*3+2] = col[i*4+j].b;
}
}
GPU_color3_upload(dm,colors);
MEM_freeN(colors);
if(realcol)
dm->drawObject->colType = CD_TEXTURE_MCOL;
else if(mcol)
dm->drawObject->colType = CD_MCOL;
//}
GPU_color_setup( dm );
}
if( !GPU_buffer_legacy(dm) ) {
glShadeModel( GL_SMOOTH );
for(i = 0; i < dm->drawObject->nelements/3; i++) {
int actualFace = dm->drawObject->faceRemap[i];
int flag = 1;
if(drawParams) {
flag = drawParams(tf? &tf[actualFace]: NULL, mcol? &mcol[actualFace*4]: NULL, mf[actualFace].mat_nr);
}
else {
if(index) {
orig = index[actualFace];
if(drawParamsMapped)
flag = drawParamsMapped(userData, orig);
}
else
if(drawParamsMapped)
flag = drawParamsMapped(userData, actualFace);
}
if( flag != lastFlag ) {
if( startFace < i ) {
if( lastFlag != 0 ) { /* if the flag is 0 it means the face is hidden or invisible */
if (lastFlag==1 && mcol)
GPU_color_switch(1);
else
GPU_color_switch(0);
glDrawArrays(GL_TRIANGLES,startFace*3,(i-startFace)*3);
}
}
lastFlag = flag;
startFace = i;
}
}
if( startFace < dm->drawObject->nelements/3 ) {
if( lastFlag != 0 ) { /* if the flag is 0 it means the face is hidden or invisible */
if (lastFlag==1 && mcol)
GPU_color_switch(1);
else
GPU_color_switch(0);
glDrawArrays(GL_TRIANGLES,startFace*3,dm->drawObject->nelements-startFace*3);
}
}
}
GPU_buffer_unbind();
glShadeModel( GL_FLAT );
}
}
static void cdDM_drawFacesTex(DerivedMesh *dm, int (*setDrawOptions)(MTFace *tface, MCol *mcol, int matnr))
{
cdDM_drawFacesTex_common(dm, setDrawOptions, NULL, NULL);
}
static void cdDM_drawMappedFaces(DerivedMesh *dm, int (*setDrawOptions)(void *userData, int index, int *drawSmooth_r), void *userData, int useColors)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
MVert *mv = cddm->mvert;
MFace *mf = cddm->mface;
MCol *mc;
float *nors= dm->getFaceDataArray(dm, CD_NORMAL);
int i, orig, *index = DM_get_face_data_layer(dm, CD_ORIGINDEX);
mc = DM_get_face_data_layer(dm, CD_ID_MCOL);
if(!mc)
mc = DM_get_face_data_layer(dm, CD_WEIGHT_MCOL);
if(!mc)
mc = DM_get_face_data_layer(dm, CD_MCOL);
if( GPU_buffer_legacy(dm) ) {
DEBUG_VBO( "Using legacy code. cdDM_drawMappedFaces\n" );
for(i = 0; i < dm->numFaceData; i++, mf++) {
int drawSmooth = (mf->flag & ME_SMOOTH);
if(index) {
orig = *index++;
if(setDrawOptions && orig == ORIGINDEX_NONE)
{ if(nors) nors += 3; continue; }
}
else
orig = i;
if(!setDrawOptions || setDrawOptions(userData, orig, &drawSmooth)) {
unsigned char *cp = NULL;
if(useColors && mc)
cp = (unsigned char *)&mc[i * 4];
glShadeModel(drawSmooth?GL_SMOOTH:GL_FLAT);
glBegin(mf->v4?GL_QUADS:GL_TRIANGLES);
if (!drawSmooth) {
if (nors) {
glNormal3fv(nors);
}
else {
float nor[3];
if(mf->v4) {
CalcNormFloat4(mv[mf->v1].co, mv[mf->v2].co,
mv[mf->v3].co, mv[mf->v4].co,
nor);
} else {
CalcNormFloat(mv[mf->v1].co, mv[mf->v2].co,
mv[mf->v3].co, nor);
}
glNormal3fv(nor);
}
if(cp) glColor3ub(cp[3], cp[2], cp[1]);
glVertex3fv(mv[mf->v1].co);
if(cp) glColor3ub(cp[7], cp[6], cp[5]);
glVertex3fv(mv[mf->v2].co);
if(cp) glColor3ub(cp[11], cp[10], cp[9]);
glVertex3fv(mv[mf->v3].co);
if(mf->v4) {
if(cp) glColor3ub(cp[15], cp[14], cp[13]);
glVertex3fv(mv[mf->v4].co);
}
} else {
if(cp) glColor3ub(cp[3], cp[2], cp[1]);
glNormal3sv(mv[mf->v1].no);
glVertex3fv(mv[mf->v1].co);
if(cp) glColor3ub(cp[7], cp[6], cp[5]);
glNormal3sv(mv[mf->v2].no);
glVertex3fv(mv[mf->v2].co);
if(cp) glColor3ub(cp[11], cp[10], cp[9]);
glNormal3sv(mv[mf->v3].no);
glVertex3fv(mv[mf->v3].co);
if(mf->v4) {
if(cp) glColor3ub(cp[15], cp[14], cp[13]);
glNormal3sv(mv[mf->v4].no);
glVertex3fv(mv[mf->v4].co);
}
}
glEnd();
}
if (nors) nors += 3;
}
}
else { /* use OpenGL VBOs or Vertex Arrays instead for better, faster rendering */
int state = 1;
int prevstate = 1;
int prevstart = 0;
GPU_vertex_setup(dm);
GPU_normal_setup(dm);
if( useColors && mc )
GPU_color_setup(dm);
if( !GPU_buffer_legacy(dm) ) {
glShadeModel(GL_SMOOTH);
for( i = 0; i < dm->drawObject->nelements/3; i++ ) {
int actualFace = dm->drawObject->faceRemap[i];
int drawSmooth = (mf[actualFace].flag & ME_SMOOTH);
int dontdraw = 0;
if(index) {
orig = index[actualFace];
if(setDrawOptions && orig == ORIGINDEX_NONE)
dontdraw = 1;
}
else
orig = i;
if( dontdraw ) {
state = 0;
}
else {
if(!setDrawOptions || setDrawOptions(userData, orig, &drawSmooth)) {
state = 1;
}
else {
state = 0;
}
}
if( prevstate != state && prevstate == 1 ) {
if( i-prevstart > 0 ) {
glDrawArrays(GL_TRIANGLES,prevstart*3,(i-prevstart)*3);
}
prevstart = i;
}
prevstate = state;
}
if(state==1) {
glDrawArrays(GL_TRIANGLES,prevstart*3,dm->drawObject->nelements-prevstart*3);
}
glShadeModel(GL_FLAT);
}
GPU_buffer_unbind();
}
}
static void cdDM_drawMappedFacesTex(DerivedMesh *dm, int (*setDrawOptions)(void *userData, int index), void *userData)
{
cdDM_drawFacesTex_common(dm, NULL, setDrawOptions, userData);
}
static void cdDM_drawMappedFacesGLSL(DerivedMesh *dm, int (*setMaterial)(int, void *attribs), int (*setDrawOptions)(void *userData, int index), void *userData)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
GPUVertexAttribs gattribs;
DMVertexAttribs attribs;
MVert *mvert = cddm->mvert;
MFace *mface = cddm->mface;
MTFace *tf = dm->getFaceDataArray(dm, CD_MTFACE);
float (*nors)[3] = dm->getFaceDataArray(dm, CD_NORMAL);
int a, b, dodraw, smoothnormal, matnr, new_matnr;
int transp, new_transp, orig_transp;
int orig, *index = dm->getFaceDataArray(dm, CD_ORIGINDEX);
matnr = -1;
smoothnormal = 0;
dodraw = 0;
transp = GPU_get_material_blend_mode();
orig_transp = transp;
glShadeModel(GL_SMOOTH);
if( GPU_buffer_legacy(dm) || setDrawOptions != 0 ) {
DEBUG_VBO( "Using legacy code. cdDM_drawMappedFacesGLSL\n" );
memset(&attribs, 0, sizeof(attribs));
glBegin(GL_QUADS);
for(a = 0; a < dm->numFaceData; a++, mface++) {
new_matnr = mface->mat_nr + 1;
if(new_matnr != matnr) {
glEnd();
dodraw = setMaterial(matnr = new_matnr, &gattribs);
if(dodraw)
DM_vertex_attributes_from_gpu(dm, &gattribs, &attribs);
glBegin(GL_QUADS);
}
if(!dodraw) {
continue;
}
else if(setDrawOptions) {
orig = (index)? index[a]: a;
if(orig == ORIGINDEX_NONE)
continue;
else if(!setDrawOptions(userData, orig))
continue;
}
if(tf) {
new_transp = tf[a].transp;
if(new_transp != transp) {
glEnd();
if(new_transp == GPU_BLEND_SOLID && orig_transp != GPU_BLEND_SOLID)
GPU_set_material_blend_mode(orig_transp);
else
GPU_set_material_blend_mode(new_transp);
transp = new_transp;
glBegin(GL_QUADS);
}
}
smoothnormal = (mface->flag & ME_SMOOTH);
if(!smoothnormal) {
if(nors) {
glNormal3fv(nors[a]);
}
else {
/* TODO ideally a normal layer should always be available */
float nor[3];
if(mface->v4) {
CalcNormFloat4(mvert[mface->v1].co, mvert[mface->v2].co,
mvert[mface->v3].co, mvert[mface->v4].co,
nor);
} else {
CalcNormFloat(mvert[mface->v1].co, mvert[mface->v2].co,
mvert[mface->v3].co, nor);
}
glNormal3fv(nor);
}
}
#define PASSVERT(index, vert) { \
if(attribs.totorco) \
glVertexAttrib3fvARB(attribs.orco.glIndex, attribs.orco.array[index]); \
for(b = 0; b < attribs.tottface; b++) { \
MTFace *tf = &attribs.tface[b].array[a]; \
glVertexAttrib2fvARB(attribs.tface[b].glIndex, tf->uv[vert]); \
} \
for(b = 0; b < attribs.totmcol; b++) { \
MCol *cp = &attribs.mcol[b].array[a*4 + vert]; \
GLubyte col[4]; \
col[0]= cp->b; col[1]= cp->g; col[2]= cp->r; col[3]= cp->a; \
glVertexAttrib4ubvARB(attribs.mcol[b].glIndex, col); \
} \
if(attribs.tottang) { \
float *tang = attribs.tang.array[a*4 + vert]; \
glVertexAttrib3fvARB(attribs.tang.glIndex, tang); \
} \
if(smoothnormal) \
glNormal3sv(mvert[index].no); \
glVertex3fv(mvert[index].co); \
}
PASSVERT(mface->v1, 0);
PASSVERT(mface->v2, 1);
PASSVERT(mface->v3, 2);
if(mface->v4)
PASSVERT(mface->v4, 3)
else
PASSVERT(mface->v3, 2)
#undef PASSVERT
}
glEnd();
}
else {
GPUBuffer *buffer = 0;
char *varray = 0;
int numdata = 0, elementsize = 0, offset;
int start = 0, numfaces = 0, prevdraw = 0, curface = 0;
GPUAttrib datatypes[32];
memset(&attribs, 0, sizeof(attribs));
GPU_vertex_setup(dm);
GPU_normal_setup(dm);
if( !GPU_buffer_legacy(dm) ) {
for(a = 0; a < dm->numFaceData; a++, mface++) {
new_matnr = mface->mat_nr + 1;
if(new_matnr != matnr ) {
numfaces = curface - start;
if( numfaces > 0 ) {
if( prevdraw ) {
GPU_buffer_unlock(buffer);
GPU_interleaved_attrib_setup(buffer,datatypes,numdata);
glDrawArrays(GL_TRIANGLES,start*3,numfaces*3);
GPU_buffer_free(buffer,0);
}
}
start = curface;
prevdraw = dodraw;
dodraw = setMaterial(matnr = new_matnr, &gattribs);
if(dodraw) {
DM_vertex_attributes_from_gpu(dm, &gattribs, &attribs);
if(attribs.totorco) {
datatypes[numdata].index = attribs.orco.glIndex;
datatypes[numdata].size = 3;
datatypes[numdata].type = GL_FLOAT;
numdata++;
}
for(b = 0; b < attribs.tottface; b++) {
datatypes[numdata].index = attribs.tface[b].glIndex;
datatypes[numdata].size = 2;
datatypes[numdata].type = GL_FLOAT;
numdata++;
}
for(b = 0; b < attribs.totmcol; b++) {
datatypes[numdata].index = attribs.mcol[b].glIndex;
datatypes[numdata].size = 4;
datatypes[numdata].type = GL_UNSIGNED_BYTE;
numdata++;
}
if(attribs.tottang) {
datatypes[numdata].index = attribs.tang.glIndex;
datatypes[numdata].size = 3;
datatypes[numdata].type = GL_FLOAT;
numdata++;
}
if( numdata != 0 ) {
elementsize = GPU_attrib_element_size( datatypes, numdata );
buffer = GPU_buffer_alloc( elementsize*dm->drawObject->nelements, 0 );
if( buffer == 0 ) {
GPU_buffer_unbind();
dm->drawObject->legacy = 1;
return;
}
varray = GPU_buffer_lock_stream(buffer);
if( varray == 0 ) {
GPU_buffer_unbind();
GPU_buffer_free(buffer, 0);
dm->drawObject->legacy = 1;
return;
}
}
}
}
if(!dodraw) {
continue;
}
if(tf) {
new_transp = tf[a].transp;
if(new_transp != transp) {
numfaces = curface - start;
if( numfaces > 0 ) {
if( dodraw ) {
if( numdata != 0 ) {
GPU_buffer_unlock(buffer);
GPU_interleaved_attrib_setup(buffer,datatypes,numdata);
}
glDrawArrays(GL_TRIANGLES,start*3,(curface-start)*3);
if( numdata != 0 ) {
varray = GPU_buffer_lock_stream(buffer);
}
}
}
start = curface;
if(new_transp == GPU_BLEND_SOLID && orig_transp != GPU_BLEND_SOLID)
GPU_set_material_blend_mode(orig_transp);
else
GPU_set_material_blend_mode(new_transp);
transp = new_transp;
}
}
if( numdata != 0 ) {
offset = 0;
if(attribs.totorco) {
VECCOPY((float *)&varray[elementsize*curface*3],(float *)attribs.orco.array[mface->v1]);
VECCOPY((float *)&varray[elementsize*curface*3+elementsize],(float *)attribs.orco.array[mface->v2]);
VECCOPY((float *)&varray[elementsize*curface*3+elementsize*2],(float *)attribs.orco.array[mface->v3]);
offset += sizeof(float)*3;
}
for(b = 0; b < attribs.tottface; b++) {
MTFace *tf = &attribs.tface[b].array[a];
VECCOPY((float *)&varray[elementsize*curface*3+offset],tf->uv[0]);
VECCOPY((float *)&varray[elementsize*curface*3+offset+elementsize],tf->uv[1]);
VECCOPY((float *)&varray[elementsize*curface*3+offset+elementsize*2],tf->uv[2]);
offset += sizeof(float)*2;
}
for(b = 0; b < attribs.totmcol; b++) {
MCol *cp = &attribs.mcol[b].array[a*4 + 0];
GLubyte col[4];
col[0]= cp->b; col[1]= cp->g; col[2]= cp->r; col[3]= cp->a;
QUATCOPY((unsigned char *)&varray[elementsize*curface*3+offset], col);
cp = &attribs.mcol[b].array[a*4 + 1];
col[0]= cp->b; col[1]= cp->g; col[2]= cp->r; col[3]= cp->a;
QUATCOPY((unsigned char *)&varray[elementsize*curface*3+offset+elementsize], col);
cp = &attribs.mcol[b].array[a*4 + 2];
col[0]= cp->b; col[1]= cp->g; col[2]= cp->r; col[3]= cp->a;
QUATCOPY((unsigned char *)&varray[elementsize*curface*3+offset+elementsize*2], col);
offset += sizeof(unsigned char)*4;
}
if(attribs.tottang) {
float *tang = attribs.tang.array[a*4 + 0];
VECCOPY((float *)&varray[elementsize*curface*3+offset], tang);
tang = attribs.tang.array[a*4 + 1];
VECCOPY((float *)&varray[elementsize*curface*3+offset+elementsize], tang);
tang = attribs.tang.array[a*4 + 2];
VECCOPY((float *)&varray[elementsize*curface*3+offset+elementsize], tang);
offset += sizeof(float)*3;
}
}
curface++;
if(mface->v4) {
if( numdata != 0 ) {
offset = 0;
if(attribs.totorco) {
VECCOPY((float *)&varray[elementsize*curface*3],(float *)attribs.orco.array[mface->v3]);
VECCOPY((float *)&varray[elementsize*curface*3+elementsize],(float *)attribs.orco.array[mface->v4]);
VECCOPY((float *)&varray[elementsize*curface*3+elementsize*2],(float *)attribs.orco.array[mface->v1]);
offset += sizeof(float)*3;
}
for(b = 0; b < attribs.tottface; b++) {
MTFace *tf = &attribs.tface[b].array[a];
VECCOPY((float *)&varray[elementsize*curface*3+offset],tf->uv[2]);
VECCOPY((float *)&varray[elementsize*curface*3+offset+elementsize],tf->uv[3]);
VECCOPY((float *)&varray[elementsize*curface*3+offset+elementsize*2],tf->uv[0]);
offset += sizeof(float)*2;
}
for(b = 0; b < attribs.totmcol; b++) {
MCol *cp = &attribs.mcol[b].array[a*4 + 2];
GLubyte col[4];
col[0]= cp->b; col[1]= cp->g; col[2]= cp->r; col[3]= cp->a;
QUATCOPY((unsigned char *)&varray[elementsize*curface*3+offset], col);
cp = &attribs.mcol[b].array[a*4 + 3];
col[0]= cp->b; col[1]= cp->g; col[2]= cp->r; col[3]= cp->a;
QUATCOPY((unsigned char *)&varray[elementsize*curface*3+offset+elementsize], col);
cp = &attribs.mcol[b].array[a*4 + 0];
col[0]= cp->b; col[1]= cp->g; col[2]= cp->r; col[3]= cp->a;
QUATCOPY((unsigned char *)&varray[elementsize*curface*3+offset+elementsize*2], col);
offset += sizeof(unsigned char)*4;
}
if(attribs.tottang) {
float *tang = attribs.tang.array[a*4 + 2];
VECCOPY((float *)&varray[elementsize*curface*3+offset], tang);
tang = attribs.tang.array[a*4 + 3];
VECCOPY((float *)&varray[elementsize*curface*3+offset+elementsize], tang);
tang = attribs.tang.array[a*4 + 0];
VECCOPY((float *)&varray[elementsize*curface*3+offset+elementsize], tang);
offset += sizeof(float)*3;
}
}
curface++;
}
}
numfaces = curface - start;
if( numfaces > 0 ) {
if( dodraw ) {
if( numdata != 0 ) {
GPU_buffer_unlock(buffer);
GPU_interleaved_attrib_setup(buffer,datatypes,numdata);
}
glDrawArrays(GL_TRIANGLES,start*3,(curface-start)*3);
}
}
GPU_buffer_unbind();
}
GPU_buffer_free( buffer, 0 );
}
glShadeModel(GL_FLAT);
}
static void cdDM_drawFacesGLSL(DerivedMesh *dm, int (*setMaterial)(int, void *attribs))
{
dm->drawMappedFacesGLSL(dm, setMaterial, NULL, NULL);
}
static void cdDM_drawMappedEdges(DerivedMesh *dm, int (*setDrawOptions)(void *userData, int index), void *userData)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
MVert *vert = cddm->mvert;
MEdge *edge = cddm->medge;
int i, orig, *index = DM_get_edge_data_layer(dm, CD_ORIGINDEX);
glBegin(GL_LINES);
for(i = 0; i < dm->numEdgeData; i++, edge++) {
if(index) {
orig = *index++;
if(setDrawOptions && orig == ORIGINDEX_NONE) continue;
}
else
orig = i;
if(!setDrawOptions || setDrawOptions(userData, orig)) {
glVertex3fv(vert[edge->v1].co);
glVertex3fv(vert[edge->v2].co);
}
}
glEnd();
}
static void cdDM_foreachMappedVert(
DerivedMesh *dm,
void (*func)(void *userData, int index, float *co,
float *no_f, short *no_s),
void *userData)
{
MVert *mv = CDDM_get_verts(dm);
int i, orig, *index = DM_get_vert_data_layer(dm, CD_ORIGINDEX);
for(i = 0; i < dm->numVertData; i++, mv++) {
if(index) {
orig = *index++;
if(orig == ORIGINDEX_NONE) continue;
func(userData, orig, mv->co, NULL, mv->no);
}
else
func(userData, i, mv->co, NULL, mv->no);
}
}
static void cdDM_foreachMappedEdge(
DerivedMesh *dm,
void (*func)(void *userData, int index,
float *v0co, float *v1co),
void *userData)
{
CDDerivedMesh *cddm = (CDDerivedMesh*) dm;
MVert *mv = cddm->mvert;
MEdge *med = cddm->medge;
int i, orig, *index = DM_get_edge_data_layer(dm, CD_ORIGINDEX);
for(i = 0; i < dm->numEdgeData; i++, med++) {
if (index) {
orig = *index++;
if(orig == ORIGINDEX_NONE) continue;
func(userData, orig, mv[med->v1].co, mv[med->v2].co);
}
else
func(userData, i, mv[med->v1].co, mv[med->v2].co);
}
}
static void cdDM_foreachMappedFaceCenter(
DerivedMesh *dm,
void (*func)(void *userData, int index,
float *cent, float *no),
void *userData)
{
CDDerivedMesh *cddm = (CDDerivedMesh*)dm;
MVert *mv = cddm->mvert;
MFace *mf = cddm->mface;
int i, orig, *index = DM_get_face_data_layer(dm, CD_ORIGINDEX);
for(i = 0; i < dm->numFaceData; i++, mf++) {
float cent[3];
float no[3];
if (index) {
orig = *index++;
if(orig == ORIGINDEX_NONE) continue;
}
else
orig = i;
VECCOPY(cent, mv[mf->v1].co);
VecAddf(cent, cent, mv[mf->v2].co);
VecAddf(cent, cent, mv[mf->v3].co);
if (mf->v4) {
CalcNormFloat4(mv[mf->v1].co, mv[mf->v2].co,
mv[mf->v3].co, mv[mf->v4].co, no);
VecAddf(cent, cent, mv[mf->v4].co);
VecMulf(cent, 0.25f);
} else {
CalcNormFloat(mv[mf->v1].co, mv[mf->v2].co,
mv[mf->v3].co, no);
VecMulf(cent, 0.33333333333f);
}
func(userData, orig, cent, no);
}
}
static void cdDM_free_internal(CDDerivedMesh *cddm)
{
if(cddm->pbvh) BLI_pbvh_free(cddm->pbvh);
if(cddm->fmap) MEM_freeN(cddm->fmap);
if(cddm->fmap_mem) MEM_freeN(cddm->fmap_mem);
}
static void cdDM_release(DerivedMesh *dm)
{
CDDerivedMesh *cddm = (CDDerivedMesh*)dm;
if (DM_release(dm)) {
cdDM_free_internal(cddm);
MEM_freeN(cddm);
}
}
/**************** CDDM interface functions ****************/
static CDDerivedMesh *cdDM_create(const char *desc)
{
CDDerivedMesh *cddm;
DerivedMesh *dm;
cddm = MEM_callocN(sizeof(*cddm), desc);
dm = &cddm->dm;
dm->getMinMax = cdDM_getMinMax;
dm->getNumVerts = cdDM_getNumVerts;
dm->getNumFaces = cdDM_getNumFaces;
dm->getNumEdges = cdDM_getNumEdges;
dm->getVert = cdDM_getVert;
dm->getEdge = cdDM_getEdge;
dm->getFace = cdDM_getFace;
dm->copyVertArray = cdDM_copyVertArray;
dm->copyEdgeArray = cdDM_copyEdgeArray;
dm->copyFaceArray = cdDM_copyFaceArray;
dm->getVertData = DM_get_vert_data;
dm->getEdgeData = DM_get_edge_data;
dm->getFaceData = DM_get_face_data;
dm->getVertDataArray = DM_get_vert_data_layer;
dm->getEdgeDataArray = DM_get_edge_data_layer;
dm->getFaceDataArray = DM_get_face_data_layer;
dm->getVertCos = cdDM_getVertCos;
dm->getVertCo = cdDM_getVertCo;
dm->getVertNo = cdDM_getVertNo;
dm->getPBVH = cdDM_getPBVH;
dm->getFaceMap = cdDM_getFaceMap;
dm->drawVerts = cdDM_drawVerts;
dm->drawUVEdges = cdDM_drawUVEdges;
dm->drawEdges = cdDM_drawEdges;
dm->drawLooseEdges = cdDM_drawLooseEdges;
dm->drawMappedEdges = cdDM_drawMappedEdges;
dm->drawFacesSolid = cdDM_drawFacesSolid;
dm->drawFacesColored = cdDM_drawFacesColored;
dm->drawFacesTex = cdDM_drawFacesTex;
dm->drawFacesGLSL = cdDM_drawFacesGLSL;
dm->drawMappedFaces = cdDM_drawMappedFaces;
dm->drawMappedFacesTex = cdDM_drawMappedFacesTex;
dm->drawMappedFacesGLSL = cdDM_drawMappedFacesGLSL;
dm->foreachMappedVert = cdDM_foreachMappedVert;
dm->foreachMappedEdge = cdDM_foreachMappedEdge;
dm->foreachMappedFaceCenter = cdDM_foreachMappedFaceCenter;
dm->release = cdDM_release;
return cddm;
}
DerivedMesh *CDDM_new(int numVerts, int numEdges, int numFaces)
{
CDDerivedMesh *cddm = cdDM_create("CDDM_new dm");
DerivedMesh *dm = &cddm->dm;
DM_init(dm, numVerts, numEdges, numFaces);
CustomData_add_layer(&dm->vertData, CD_ORIGINDEX, CD_CALLOC, NULL, numVerts);
CustomData_add_layer(&dm->edgeData, CD_ORIGINDEX, CD_CALLOC, NULL, numEdges);
CustomData_add_layer(&dm->faceData, CD_ORIGINDEX, CD_CALLOC, NULL, numFaces);
CustomData_add_layer(&dm->vertData, CD_MVERT, CD_CALLOC, NULL, numVerts);
CustomData_add_layer(&dm->edgeData, CD_MEDGE, CD_CALLOC, NULL, numEdges);
CustomData_add_layer(&dm->faceData, CD_MFACE, CD_CALLOC, NULL, numFaces);
cddm->mvert = CustomData_get_layer(&dm->vertData, CD_MVERT);
cddm->medge = CustomData_get_layer(&dm->edgeData, CD_MEDGE);
cddm->mface = CustomData_get_layer(&dm->faceData, CD_MFACE);
return dm;
}
DerivedMesh *CDDM_from_mesh(Mesh *mesh, Object *ob)
{
CDDerivedMesh *cddm = cdDM_create("CDDM_from_mesh dm");
DerivedMesh *dm = &cddm->dm;
CustomDataMask mask = CD_MASK_MESH & (~CD_MASK_MDISPS);
int alloctype;
/* this does a referenced copy, with an exception for fluidsim */
DM_init(dm, mesh->totvert, mesh->totedge, mesh->totface);
dm->deformedOnly = 1;
alloctype= CD_REFERENCE;
CustomData_merge(&mesh->vdata, &dm->vertData, mask, alloctype,
mesh->totvert);
CustomData_merge(&mesh->edata, &dm->edgeData, mask, alloctype,
mesh->totedge);
CustomData_merge(&mesh->fdata, &dm->faceData, mask, alloctype,
mesh->totface);
cddm->mvert = CustomData_get_layer(&dm->vertData, CD_MVERT);
cddm->medge = CustomData_get_layer(&dm->edgeData, CD_MEDGE);
cddm->mface = CustomData_get_layer(&dm->faceData, CD_MFACE);
return dm;
}
DerivedMesh *CDDM_from_editmesh(EditMesh *em, Mesh *me)
{
DerivedMesh *dm = CDDM_new(BLI_countlist(&em->verts),
BLI_countlist(&em->edges),
BLI_countlist(&em->faces));
CDDerivedMesh *cddm = (CDDerivedMesh*)dm;
EditVert *eve;
EditEdge *eed;
EditFace *efa;
MVert *mvert = cddm->mvert;
MEdge *medge = cddm->medge;
MFace *mface = cddm->mface;
int i, *index;
dm->deformedOnly = 1;
CustomData_merge(&em->vdata, &dm->vertData, CD_MASK_DERIVEDMESH,
CD_CALLOC, dm->numVertData);
/* CustomData_merge(&em->edata, &dm->edgeData, CD_MASK_DERIVEDMESH,
CD_CALLOC, dm->numEdgeData); */
CustomData_merge(&em->fdata, &dm->faceData, CD_MASK_DERIVEDMESH,
CD_CALLOC, dm->numFaceData);
/* set eve->hash to vert index */
for(i = 0, eve = em->verts.first; eve; eve = eve->next, ++i)
eve->tmp.l = i;
/* Need to be able to mark loose edges */
for(eed = em->edges.first; eed; eed = eed->next) {
eed->f2 = 0;
}
for(efa = em->faces.first; efa; efa = efa->next) {
efa->e1->f2 = 1;
efa->e2->f2 = 1;
efa->e3->f2 = 1;
if(efa->e4) efa->e4->f2 = 1;
}
index = dm->getVertDataArray(dm, CD_ORIGINDEX);
for(i = 0, eve = em->verts.first; i < dm->numVertData;
i++, eve = eve->next, index++) {
MVert *mv = &mvert[i];
VECCOPY(mv->co, eve->co);
mv->no[0] = eve->no[0] * 32767.0;
mv->no[1] = eve->no[1] * 32767.0;
mv->no[2] = eve->no[2] * 32767.0;
mv->bweight = (unsigned char) (eve->bweight * 255.0f);
mv->mat_nr = 0;
mv->flag = 0;
*index = i;
CustomData_from_em_block(&em->vdata, &dm->vertData, eve->data, i);
}
index = dm->getEdgeDataArray(dm, CD_ORIGINDEX);
for(i = 0, eed = em->edges.first; i < dm->numEdgeData;
i++, eed = eed->next, index++) {
MEdge *med = &medge[i];
med->v1 = eed->v1->tmp.l;
med->v2 = eed->v2->tmp.l;
med->crease = (unsigned char) (eed->crease * 255.0f);
med->bweight = (unsigned char) (eed->bweight * 255.0f);
med->flag = ME_EDGEDRAW|ME_EDGERENDER;
if(eed->seam) med->flag |= ME_SEAM;
if(eed->sharp) med->flag |= ME_SHARP;
if(!eed->f2) med->flag |= ME_LOOSEEDGE;
*index = i;
/* CustomData_from_em_block(&em->edata, &dm->edgeData, eed->data, i); */
}
index = dm->getFaceDataArray(dm, CD_ORIGINDEX);
for(i = 0, efa = em->faces.first; i < dm->numFaceData;
i++, efa = efa->next, index++) {
MFace *mf = &mface[i];
mf->v1 = efa->v1->tmp.l;
mf->v2 = efa->v2->tmp.l;
mf->v3 = efa->v3->tmp.l;
mf->v4 = efa->v4 ? efa->v4->tmp.l : 0;
mf->mat_nr = efa->mat_nr;
mf->flag = efa->flag;
*index = i;
CustomData_from_em_block(&em->fdata, &dm->faceData, efa->data, i);
test_index_face(mf, &dm->faceData, i, efa->v4?4:3);
}
return dm;
}
DerivedMesh *CDDM_copy(DerivedMesh *source)
{
CDDerivedMesh *cddm = cdDM_create("CDDM_copy cddm");
DerivedMesh *dm = &cddm->dm;
int numVerts = source->numVertData;
int numEdges = source->numEdgeData;
int numFaces = source->numFaceData;
/* this initializes dm, and copies all non mvert/medge/mface layers */
DM_from_template(dm, source, numVerts, numEdges, numFaces);
dm->deformedOnly = source->deformedOnly;
CustomData_copy_data(&source->vertData, &dm->vertData, 0, 0, numVerts);
CustomData_copy_data(&source->edgeData, &dm->edgeData, 0, 0, numEdges);
CustomData_copy_data(&source->faceData, &dm->faceData, 0, 0, numFaces);
/* now add mvert/medge/mface layers */
cddm->mvert = source->dupVertArray(source);
cddm->medge = source->dupEdgeArray(source);
cddm->mface = source->dupFaceArray(source);
CustomData_add_layer(&dm->vertData, CD_MVERT, CD_ASSIGN, cddm->mvert, numVerts);
CustomData_add_layer(&dm->edgeData, CD_MEDGE, CD_ASSIGN, cddm->medge, numEdges);
CustomData_add_layer(&dm->faceData, CD_MFACE, CD_ASSIGN, cddm->mface, numFaces);
return dm;
}
DerivedMesh *CDDM_from_template(DerivedMesh *source,
int numVerts, int numEdges, int numFaces)
{
CDDerivedMesh *cddm = cdDM_create("CDDM_from_template dest");
DerivedMesh *dm = &cddm->dm;
/* this does a copy of all non mvert/medge/mface layers */
DM_from_template(dm, source, numVerts, numEdges, numFaces);
/* now add mvert/medge/mface layers */
CustomData_add_layer(&dm->vertData, CD_MVERT, CD_CALLOC, NULL, numVerts);
CustomData_add_layer(&dm->edgeData, CD_MEDGE, CD_CALLOC, NULL, numEdges);
CustomData_add_layer(&dm->faceData, CD_MFACE, CD_CALLOC, NULL, numFaces);
if(!CustomData_get_layer(&dm->vertData, CD_ORIGINDEX))
CustomData_add_layer(&dm->vertData, CD_ORIGINDEX, CD_CALLOC, NULL, numVerts);
if(!CustomData_get_layer(&dm->edgeData, CD_ORIGINDEX))
CustomData_add_layer(&dm->edgeData, CD_ORIGINDEX, CD_CALLOC, NULL, numEdges);
if(!CustomData_get_layer(&dm->faceData, CD_ORIGINDEX))
CustomData_add_layer(&dm->faceData, CD_ORIGINDEX, CD_CALLOC, NULL, numFaces);
cddm->mvert = CustomData_get_layer(&dm->vertData, CD_MVERT);
cddm->medge = CustomData_get_layer(&dm->edgeData, CD_MEDGE);
cddm->mface = CustomData_get_layer(&dm->faceData, CD_MFACE);
return dm;
}
void CDDM_apply_vert_coords(DerivedMesh *dm, float (*vertCoords)[3])
{
CDDerivedMesh *cddm = (CDDerivedMesh*)dm;
MVert *vert;
int i;
/* this will just return the pointer if it wasn't a referenced layer */
vert = CustomData_duplicate_referenced_layer(&dm->vertData, CD_MVERT);
cddm->mvert = vert;
for(i = 0; i < dm->numVertData; ++i, ++vert)
VECCOPY(vert->co, vertCoords[i]);
}
void CDDM_apply_vert_normals(DerivedMesh *dm, short (*vertNormals)[3])
{
CDDerivedMesh *cddm = (CDDerivedMesh*)dm;
MVert *vert;
int i;
/* this will just return the pointer if it wasn't a referenced layer */
vert = CustomData_duplicate_referenced_layer(&dm->vertData, CD_MVERT);
cddm->mvert = vert;
for(i = 0; i < dm->numVertData; ++i, ++vert)
VECCOPY(vert->no, vertNormals[i]);
}
/* adapted from mesh_calc_normals */
void CDDM_calc_normals(DerivedMesh *dm)
{
CDDerivedMesh *cddm = (CDDerivedMesh*)dm;
float (*temp_nors)[3];
float (*face_nors)[3];
int i;
int numVerts = dm->numVertData;
int numFaces = dm->numFaceData;
MFace *mf;
MVert *mv;
if(numVerts == 0) return;
temp_nors = MEM_callocN(numVerts * sizeof(*temp_nors),
"CDDM_calc_normals temp_nors");
/* we don't want to overwrite any referenced layers */
mv = CustomData_duplicate_referenced_layer(&dm->vertData, CD_MVERT);
cddm->mvert = mv;
/* make a face normal layer if not present */
face_nors = CustomData_get_layer(&dm->faceData, CD_NORMAL);
if(!face_nors)
face_nors = CustomData_add_layer(&dm->faceData, CD_NORMAL, CD_CALLOC,
NULL, dm->numFaceData);
/* calculate face normals and add to vertex normals */
mf = CDDM_get_faces(dm);
for(i = 0; i < numFaces; i++, mf++) {
float *f_no = face_nors[i];
if(mf->v4)
CalcNormFloat4(mv[mf->v1].co, mv[mf->v2].co,
mv[mf->v3].co, mv[mf->v4].co, f_no);
else
CalcNormFloat(mv[mf->v1].co, mv[mf->v2].co,
mv[mf->v3].co, f_no);
VecAddf(temp_nors[mf->v1], temp_nors[mf->v1], f_no);
VecAddf(temp_nors[mf->v2], temp_nors[mf->v2], f_no);
VecAddf(temp_nors[mf->v3], temp_nors[mf->v3], f_no);
if(mf->v4)
VecAddf(temp_nors[mf->v4], temp_nors[mf->v4], f_no);
}
/* normalize vertex normals and assign */
for(i = 0; i < numVerts; i++, mv++) {
float *no = temp_nors[i];
if (Normalize(no) == 0.0) {
VECCOPY(no, mv->co);
Normalize(no);
}
mv->no[0] = (short)(no[0] * 32767.0);
mv->no[1] = (short)(no[1] * 32767.0);
mv->no[2] = (short)(no[2] * 32767.0);
}
MEM_freeN(temp_nors);
}
void CDDM_calc_edges(DerivedMesh *dm)
{
CDDerivedMesh *cddm = (CDDerivedMesh*)dm;
CustomData edgeData;
EdgeHashIterator *ehi;
MFace *mf = cddm->mface;
MEdge *med;
EdgeHash *eh = BLI_edgehash_new();
int i, *index, numEdges, maxFaces = dm->numFaceData;
for (i = 0; i < maxFaces; i++, mf++) {
if (!BLI_edgehash_haskey(eh, mf->v1, mf->v2))
BLI_edgehash_insert(eh, mf->v1, mf->v2, NULL);
if (!BLI_edgehash_haskey(eh, mf->v2, mf->v3))
BLI_edgehash_insert(eh, mf->v2, mf->v3, NULL);
if (mf->v4) {
if (!BLI_edgehash_haskey(eh, mf->v3, mf->v4))
BLI_edgehash_insert(eh, mf->v3, mf->v4, NULL);
if (!BLI_edgehash_haskey(eh, mf->v4, mf->v1))
BLI_edgehash_insert(eh, mf->v4, mf->v1, NULL);
} else {
if (!BLI_edgehash_haskey(eh, mf->v3, mf->v1))
BLI_edgehash_insert(eh, mf->v3, mf->v1, NULL);
}
}
numEdges = BLI_edgehash_size(eh);
/* write new edges into a temporary CustomData */
memset(&edgeData, 0, sizeof(edgeData));
CustomData_add_layer(&edgeData, CD_MEDGE, CD_CALLOC, NULL, numEdges);
CustomData_add_layer(&edgeData, CD_ORIGINDEX, CD_CALLOC, NULL, numEdges);
ehi = BLI_edgehashIterator_new(eh);
med = CustomData_get_layer(&edgeData, CD_MEDGE);
index = CustomData_get_layer(&edgeData, CD_ORIGINDEX);
for(i = 0; !BLI_edgehashIterator_isDone(ehi);
BLI_edgehashIterator_step(ehi), ++i, ++med, ++index) {
BLI_edgehashIterator_getKey(ehi, (int*)&med->v1, (int*)&med->v2);
med->flag = ME_EDGEDRAW|ME_EDGERENDER;
*index = ORIGINDEX_NONE;
}
BLI_edgehashIterator_free(ehi);
/* free old CustomData and assign new one */
CustomData_free(&dm->edgeData, dm->numEdgeData);
dm->edgeData = edgeData;
dm->numEdgeData = numEdges;
cddm->medge = CustomData_get_layer(&dm->edgeData, CD_MEDGE);
BLI_edgehash_free(eh, NULL);
}
void CDDM_lower_num_verts(DerivedMesh *dm, int numVerts)
{
if (numVerts < dm->numVertData)
CustomData_free_elem(&dm->vertData, numVerts, dm->numVertData-numVerts);
dm->numVertData = numVerts;
}
void CDDM_lower_num_edges(DerivedMesh *dm, int numEdges)
{
if (numEdges < dm->numEdgeData)
CustomData_free_elem(&dm->edgeData, numEdges, dm->numEdgeData-numEdges);
dm->numEdgeData = numEdges;
}
void CDDM_lower_num_faces(DerivedMesh *dm, int numFaces)
{
if (numFaces < dm->numFaceData)
CustomData_free_elem(&dm->faceData, numFaces, dm->numFaceData-numFaces);
dm->numFaceData = numFaces;
}
MVert *CDDM_get_vert(DerivedMesh *dm, int index)
{
return &((CDDerivedMesh*)dm)->mvert[index];
}
MEdge *CDDM_get_edge(DerivedMesh *dm, int index)
{
return &((CDDerivedMesh*)dm)->medge[index];
}
MFace *CDDM_get_face(DerivedMesh *dm, int index)
{
return &((CDDerivedMesh*)dm)->mface[index];
}
MVert *CDDM_get_verts(DerivedMesh *dm)
{
return ((CDDerivedMesh*)dm)->mvert;
}
MEdge *CDDM_get_edges(DerivedMesh *dm)
{
return ((CDDerivedMesh*)dm)->medge;
}
MFace *CDDM_get_faces(DerivedMesh *dm)
{
return ((CDDerivedMesh*)dm)->mface;
}
/* Multires DerivedMesh, extends CDDM */
typedef struct MultiresDM {
CDDerivedMesh cddm;
MultiresModifierData *mmd;
int local_mmd;
int lvl, totlvl;
float (*orco)[3];
MVert *subco;
ListBase *vert_face_map, *vert_edge_map;
IndexNode *vert_face_map_mem, *vert_edge_map_mem;
int *face_offsets;
Object *ob;
int modified;
void (*update)(DerivedMesh*);
} MultiresDM;
static void MultiresDM_release(DerivedMesh *dm)
{
MultiresDM *mrdm = (MultiresDM*)dm;
int mvert_layer;
/* Before freeing, need to update the displacement map */
if(dm->needsFree && mrdm->modified) {
/* Check that mmd still exists */
if(!mrdm->local_mmd && BLI_findindex(&mrdm->ob->modifiers, mrdm->mmd) < 0)
mrdm->mmd = NULL;
if(mrdm->mmd)
mrdm->update(dm);
}
/* If the MVert data is being used as the sculpt undo store, don't free it */
mvert_layer = CustomData_get_layer_index(&dm->vertData, CD_MVERT);
if(mvert_layer != -1) {
CustomDataLayer *cd = &dm->vertData.layers[mvert_layer];
if(mrdm->mmd && cd->data == mrdm->mmd->undo_verts)
cd->flag |= CD_FLAG_NOFREE;
}
if(DM_release(dm)) {
cdDM_free_internal(&mrdm->cddm);
MEM_freeN(mrdm->subco);
MEM_freeN(mrdm->orco);
if(mrdm->vert_face_map)
MEM_freeN(mrdm->vert_face_map);
if(mrdm->vert_face_map_mem)
MEM_freeN(mrdm->vert_face_map_mem);
if(mrdm->vert_edge_map)
MEM_freeN(mrdm->vert_edge_map);
if(mrdm->vert_edge_map_mem)
MEM_freeN(mrdm->vert_edge_map_mem);
if(mrdm->face_offsets)
MEM_freeN(mrdm->face_offsets);
MEM_freeN(mrdm);
}
}
DerivedMesh *MultiresDM_new(MultiresSubsurf *ms, DerivedMesh *orig, int numVerts, int numEdges, int numFaces)
{
MultiresDM *mrdm = MEM_callocN(sizeof(MultiresDM), "MultiresDM");
CDDerivedMesh *cddm = cdDM_create("MultiresDM CDDM");
DerivedMesh *dm = NULL;
mrdm->cddm = *cddm;
MEM_freeN(cddm);
dm = &mrdm->cddm.dm;
mrdm->mmd = ms->mmd;
mrdm->ob = ms->ob;
mrdm->local_mmd = ms->local_mmd;
if(dm) {
MDisps *disps;
MVert *mvert;
int i;
DM_from_template(dm, orig, numVerts, numEdges, numFaces);
CustomData_free_layers(&dm->faceData, CD_MDISPS, numFaces);
disps = CustomData_get_layer(&orig->faceData, CD_MDISPS);
if(disps)
CustomData_add_layer(&dm->faceData, CD_MDISPS, CD_REFERENCE, disps, numFaces);
mvert = CustomData_get_layer(&orig->vertData, CD_MVERT);
mrdm->orco = MEM_callocN(sizeof(float) * 3 * orig->getNumVerts(orig), "multires orco");
for(i = 0; i < orig->getNumVerts(orig); ++i)
VecCopyf(mrdm->orco[i], mvert[i].co);
}
else
DM_init(dm, numVerts, numEdges, numFaces);
if(!CustomData_get_layer(&dm->vertData, CD_ORIGINDEX))
CustomData_add_layer(&dm->vertData, CD_ORIGINDEX, CD_CALLOC, NULL, numVerts);
if(!CustomData_get_layer(&dm->edgeData, CD_ORIGINDEX))
CustomData_add_layer(&dm->edgeData, CD_ORIGINDEX, CD_CALLOC, NULL, numEdges);
if(!CustomData_get_layer(&dm->faceData, CD_ORIGINDEX))
CustomData_add_layer(&dm->faceData, CD_ORIGINDEX, CD_CALLOC, NULL, numFaces);
CustomData_add_layer(&dm->vertData, CD_MVERT, CD_CALLOC, NULL, numVerts);
CustomData_add_layer(&dm->edgeData, CD_MEDGE, CD_CALLOC, NULL, numEdges);
CustomData_add_layer(&dm->faceData, CD_MFACE, CD_CALLOC, NULL, numFaces);
mrdm->cddm.mvert = CustomData_get_layer(&dm->vertData, CD_MVERT);
mrdm->cddm.medge = CustomData_get_layer(&dm->edgeData, CD_MEDGE);
mrdm->cddm.mface = CustomData_get_layer(&dm->faceData, CD_MFACE);
mrdm->lvl = ms->mmd->lvl;
mrdm->totlvl = ms->mmd->totlvl;
mrdm->subco = MEM_callocN(sizeof(MVert)*numVerts, "multires subdivided verts");
mrdm->modified = 0;
dm->release = MultiresDM_release;
return dm;
}
Mesh *MultiresDM_get_mesh(DerivedMesh *dm)
{
return get_mesh(((MultiresDM*)dm)->ob);
}
Object *MultiresDM_get_object(DerivedMesh *dm)
{
return ((MultiresDM*)dm)->ob;
}
void *MultiresDM_get_orco(DerivedMesh *dm)
{
return ((MultiresDM*)dm)->orco;
}
MVert *MultiresDM_get_subco(DerivedMesh *dm)
{
return ((MultiresDM*)dm)->subco;
}
int MultiresDM_get_totlvl(DerivedMesh *dm)
{
return ((MultiresDM*)dm)->totlvl;
}
int MultiresDM_get_lvl(DerivedMesh *dm)
{
return ((MultiresDM*)dm)->lvl;
}
void MultiresDM_set_orco(DerivedMesh *dm, float (*orco)[3])
{
((MultiresDM*)dm)->orco = orco;
}
void MultiresDM_set_update(DerivedMesh *dm, void (*update)(DerivedMesh*))
{
((MultiresDM*)dm)->update = update;
}
ListBase *MultiresDM_get_vert_face_map(DerivedMesh *dm)
{
MultiresDM *mrdm = (MultiresDM*)dm;
Mesh *me = mrdm->ob->data;
if(!mrdm->vert_face_map)
create_vert_face_map(&mrdm->vert_face_map, &mrdm->vert_face_map_mem, me->mface,
me->totvert, me->totface);
return mrdm->vert_face_map;
}
ListBase *MultiresDM_get_vert_edge_map(DerivedMesh *dm)
{
MultiresDM *mrdm = (MultiresDM*)dm;
Mesh *me = mrdm->ob->data;
if(!mrdm->vert_edge_map)
create_vert_edge_map(&mrdm->vert_edge_map, &mrdm->vert_edge_map_mem, me->medge,
me->totvert, me->totedge);
return mrdm->vert_edge_map;
}
int *MultiresDM_get_face_offsets(DerivedMesh *dm)
{
MultiresDM *mrdm = (MultiresDM*)dm;
Mesh *me = mrdm->ob->data;
int i, accum = 0;
if(!mrdm->face_offsets) {
int len = (int)pow(2, mrdm->lvl - 2) - 1;
int area = len * len;
int t = 1 + len * 3 + area * 3, q = t + len + area;
mrdm->face_offsets = MEM_callocN(sizeof(int) * me->totface, "mrdm face offsets");
for(i = 0; i < me->totface; ++i) {
mrdm->face_offsets[i] = accum;
accum += (me->mface[i].v4 ? q : t);
}
}
return mrdm->face_offsets;
}
void MultiresDM_mark_as_modified(DerivedMesh *dm)
{
((MultiresDM*)dm)->modified = 1;
}
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