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Ztransp render has a built-in maximum for amount of faces it can render

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on top of each other. Was 100, which gave noise like this in this image;
http://www.blender.org/bf/hairnew.jpg

Made it 200, which solves it for a million hair polygons;
http://www.blender.org/bf/hairnew1.jpg

Also note that hair renders go much faster and better if you insert a real
solid head in it, that will prevent hairs on the back to be inserted in the
buffers. ANd don't make the head Ztransp!
This commit is contained in:
Ton Roosendaal 2005-11-14 18:14:03 +00:00
parent 0751e7fb66
commit cf1aa49211
1 changed files with 25 additions and 20 deletions
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45
source/blender/render/intern/source/zbuf.c
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@ -2546,6 +2546,7 @@ static void copyto_abufz(int sample)
/**
* Do accumulation z buffering.
*/
static void zbuffer_abuf()
{
ZSpan zspan;
@ -2569,6 +2570,8 @@ static void zbuffer_abuf()
zbuffunc4= zbufinvulAc4;
zbuflinefunc= zbuflineAc;
//set_faces_raycountflag();
for(Zsample=0; Zsample<R.osa || R.osa==0; Zsample++) {
copyto_abufz(Zsample); /* init zbuffer */
@ -2588,25 +2591,25 @@ static void zbuffer_abuf()
if(ma->mode & (MA_ZTRA)) {
/* a little advantage for transp rendering (a z offset) */
if( ma->zoffs != 0.0) {
mul= 0x7FFFFFFF;
zval= mul*(1.0+vlr->v1->ho[2]/vlr->v1->ho[3]);
VECCOPY(vec, vlr->v1->co);
/* z is negative, otherwise its being clipped */
vec[2]-= ma->zoffs;
RE_projectverto(vec, hoco);
fval= mul*(1.0+hoco[2]/hoco[3]);
Azvoordeel= (int) fabs(zval - fval );
}
else Azvoordeel= 0;
zvlnr= v+1;
if(vlr->flag & R_VISIBLE) {
/* a little advantage for transp rendering (a z offset) */
if( ma->zoffs != 0.0) {
mul= 0x7FFFFFFF;
zval= mul*(1.0+vlr->v1->ho[2]/vlr->v1->ho[3]);
VECCOPY(vec, vlr->v1->co);
/* z is negative, otherwise its being clipped */
vec[2]-= ma->zoffs;
RE_projectverto(vec, hoco);
fval= mul*(1.0+hoco[2]/hoco[3]);
Azvoordeel= (int) fabs(zval - fval );
}
else Azvoordeel= 0;
zvlnr= v+1;
if(ma->mode & (MA_WIRE)) zbufclipwire(zvlnr, vlr);
else {
if(vlr->v4 && (vlr->flag & R_STRAND)) {
@ -2621,8 +2624,10 @@ static void zbuffer_abuf()
}
}
}
if( (v & 255)==255)
if(RE_local_test_break())
break;
}
if(RE_local_test_break()) break;
}
if((R.r.mode & R_OSA)==0) break;
@ -2709,7 +2714,7 @@ void abufsetrow(float *acolrow, int y)
APixstr *ap, *apn;
float *col, fcol[4], tempcol[4], sampcol[16*4], *scol, accumcol[4];
float ys, fac, alpha[32];
int x, part, a, zrow[100][3], totface, nr;
int x, part, a, zrow[200][3], totface, nr;
int sval;
if(y<0) return;
@ -2765,7 +2770,7 @@ void abufsetrow(float *acolrow, int y)
zrow[totface][1]= apn->p[a];
zrow[totface][2]= apn->mask[a];
totface++;
if(totface>99) totface= 99;
if(totface>199) totface= 199;
}
else break;
}