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- ray shadow now also does the options:

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- Lamp only shadow (use 'energy' to control amount that gets subtracted)
  - Material only shadow (remember, is an alpha trick)
- demo files for this have been included in testing suite, will be
  upgraded soon.
This commit is contained in:
Ton Roosendaal
2004-01-17 16:01:51 +00:00
parent dab319cfe1
commit cfe180805b
1 changed files with 37 additions and 36 deletions
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73
source/blender/render/intern/source/rendercore.c
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@@ -1671,11 +1671,12 @@ void shade_lamp_loop(ShadeInput *shi, ShadeResult *shr, int mask)
if(lar->mode & LA_LAYER) if((lar->lay & shi->vlr->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->shb) {
/* only test within spotbundel */
lv[0]= shi->co[0]-lar->co[0];
lv[1]= shi->co[1]-lar->co[1];
lv[2]= shi->co[2]-lar->co[2];
Normalise(lv);
inpr= lv[0]*lar->vec[0]+lv[1]*lar->vec[1]+lv[2]*lar->vec[2];
if(inpr>lar->spotsi) {
@@ -1699,6 +1700,17 @@ void shade_lamp_loop(ShadeInput *shi, ShadeResult *shr, int mask)
ir+= 1.0;
}
}
else if(lar->mode & LA_SHAD_RAY) {
float shad[4];
/* single sided? */
if( shi->vlr->n[0]*lv[0] + shi->vlr->n[1]*lv[1] + shi->vlr->n[2]*lv[2] > -0.01) {
ray_shadow(shi, lar, shad, mask);
shadfac[3]+= shad[3];
ir+= 1.0;
}
}
}
if(ir>0.0) shadfac[3]/= ir;
shr->alpha= (shi->mat->alpha)*(1.0-shadfac[3]);
@@ -1829,27 +1841,8 @@ void shade_lamp_loop(ShadeInput *shi, ShadeResult *shr, int mask)
soft= (3.0*t-2.0*t*i);
inpr*= soft;
}
if((lar->mode & LA_ONLYSHADOW) && lar->shb) {
if(ma->mode & MA_SHADOW) {
/* dot product positive: front side face! */
inp= vn[0]*lv[0] + vn[1]*lv[1] + vn[2]*lv[2];
if(inp>0.0) {
/* testshadowbuf==0.0 : 100% shadow */
shadfac[3] = 1.0 - testshadowbuf(lar->shb, shi->co, inp);
if(shadfac[3]>0.0) {
shadfac[3]*= inp*soft*lar->energy;
shr->diff[0] -= shadfac[3];
shr->diff[1] -= shadfac[3];
shr->diff[2] -= shadfac[3];
continue;
}
}
}
}
lampdist*=inpr;
}
if(lar->mode & LA_ONLYSHADOW) continue;
if(lar->mode & LA_OSATEX) {
shi->osatex= 1; /* signal for multitex() */
@@ -1899,22 +1892,30 @@ void shade_lamp_loop(ShadeInput *shi, ShadeResult *shr, int mask)
if(i>0.0 && (R.r.mode & R_SHADOW)) {
if(ma->mode & MA_SHADOW) {
/* single sided */
if( shi->vlr->n[0]*lv[0] + shi->vlr->n[1]*lv[1] + shi->vlr->n[2]*lv[2] > -0.01) {
if(lar->shb) {
shadfac[3] = testshadowbuf(lar->shb, shi->co, inp);
if(shadfac[3]==0.0) continue;
i*= shadfac[3];
}
else if(lar->mode & LA_SHAD_RAY) {
if(R.r.mode & R_RAYTRACE) {
/* hurms, single sided? */
if( shi->vlr->n[0]*lv[0] + shi->vlr->n[1]*lv[1] + shi->vlr->n[2]*lv[2] > -0.01) {
ray_shadow(shi, lar, shadfac, mask);
if(shadfac[3]==0.0) continue;
i*= shadfac[3];
}
if(lar->shb) {
shadfac[3] = testshadowbuf(lar->shb, shi->co, inp);
}
else if(lar->mode & LA_SHAD_RAY) {
ray_shadow(shi, lar, shadfac, mask);
}
/* 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];
shr->diff[1] -= shadfac[3];
shr->diff[2] -= shadfac[3];
continue;
}
if(shadfac[3]==0.0) continue;
i*= shadfac[3];
}
}
}