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Fix #30420: Metaball Shading Inverted in Raytrace Reflection (Blender Internal)

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Issue was caused by negative scale of camera. Metabolls are using procedural
normals and in case of negative scaled camera normals for them shall be flipped.
This commit is contained in:
Sergey Sharybin
2012-03-20 16:17:34 +00:00
parent 8b4c1f729b
commit 5ae9ad9113
1 changed files with 5 additions and 2 deletions
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7
source/blender/render/intern/source/convertblender.c
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@@ -2429,7 +2429,7 @@ static void init_render_mball(Render *re, ObjectRen *obr)
VlakRen *vlr, *vlr1;
Material *ma;
float *data, *nors, *orco=NULL, mat[4][4], imat[3][3], xn, yn, zn;
int a, need_orco, vlakindex, *index;
int a, need_orco, vlakindex, *index, is_negative;
ListBase dispbase= {NULL, NULL};
if (ob!=find_basis_mball(re->scene, ob))
@@ -2462,6 +2462,8 @@ static void init_render_mball(Render *re, ObjectRen *obr)
}
}
is_negative = is_negative_m4(re->viewmat);
for(a=0; a<dl->nr; a++, data+=3, nors+=3) {
ver= RE_findOrAddVert(obr, obr->totvert++);
@@ -2478,7 +2480,8 @@ static void init_render_mball(Render *re, ObjectRen *obr)
ver->n[1]= imat[1][0]*xn+imat[1][1]*yn+imat[1][2]*zn;
ver->n[2]= imat[2][0]*xn+imat[2][1]*yn+imat[2][2]*zn;
normalize_v3(ver->n);
//if(ob->transflag & OB_NEG_SCALE) negate_v3(ver->n);
if(is_negative)
negate_v3(ver->n);
if(need_orco) {
ver->orco= orco;