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Bug fix #1525

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RayTransp didnt work on Nurbs anymore (2.34 error).
Just a normal flip problem...
This commit is contained in:
Ton Roosendaal
2004-09-16 15:32:38 +00:00
parent 0848aed9fc
commit 2453774076
1 changed files with 5 additions and 4 deletions
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9
source/blender/renderconverter/intern/convertBlenderScene.c
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@@ -159,7 +159,7 @@ static void displace_render_vert(ShadeInput *shi, VertRen *vr, float *scale);
/* ------------------------------------------------------------------------- */
#define UVTOINDEX(u,v) (startvlak + (u) * sizev + (v))
#define GETNORMAL(face,normal) CalcNormFloat4(face->v1->co, face->v2->co, face->v3->co, face->v4->co, normal)
#define GETNORMAL(face,normal) CalcNormFloat4(face->v4->co, face->v3->co, face->v2->co, face->v1->co, normal)
/*
NOTE THAT U/V COORDINATES ARE SOMETIMES SWAPPED !!
@@ -1963,7 +1963,7 @@ static void init_render_surf(Object *ob)
v3= RE_findOrAddVert(p3);
v4= RE_findOrAddVert(p4);
flen= CalcNormFloat4(v1->co, v2->co, v3->co, v4->co, n1);
flen= CalcNormFloat4(v4->co, v3->co, v2->co, v1->co, n1);
/* flen can be 0 if there are double nurbs control vertices
so zero area faces can be generated
->> there is at the moment no proper way to fix this except
@@ -2722,7 +2722,7 @@ static void set_fullsample_flag(void)
static void check_non_flat_quads(void)
{
VlakRen *vlr, *vlr1;
float nor[3], xn;
float nor[3], xn, flen;
int a;
for(a=R.totvlak-1; a>=0; a--) {
@@ -2742,7 +2742,8 @@ static void check_non_flat_quads(void)
else {
/* render normals are inverted in render! we calculate normal of single tria here */
CalcNormFloat(vlr->v4->co, vlr->v3->co, vlr->v1->co, nor);
flen= CalcNormFloat(vlr->v4->co, vlr->v3->co, vlr->v1->co, nor);
if(flen==0.0) CalcNormFloat(vlr->v4->co, vlr->v2->co, vlr->v1->co, nor);
xn= nor[0]*vlr->n[0] + nor[1]*vlr->n[1] + nor[2]*vlr->n[2];
if(fabs(xn) < 0.99995 ) { // checked on noisy fractal grid