| 23 |
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| 24 |
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| 25 |
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| 26 |
– |
extern int contrib; /* coeff/contrib flag */ |
| 27 |
– |
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| 28 |
– |
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| 29 |
– |
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| 26 |
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static void setPmapContribParams (PhotonMap *pmap, LUTAB *srcContrib) |
| 27 |
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/* Set parameters for light source contributions */ |
| 28 |
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{ |
| 99 |
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PhotonSQNode *sq; |
| 100 |
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float r, invArea; |
| 101 |
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RREAL rayCoeff [3]; |
| 102 |
< |
FVECT rdir, rop; |
| 107 |
< |
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| 102 |
> |
|
| 103 |
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setcolor(irrad, 0, 0, 0); |
| 104 |
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| 105 |
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if (!pmap -> maxGather) |
| 110 |
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if (islight(objptr(ray -> ro -> omod) -> otype)) |
| 111 |
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return; |
| 112 |
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|
| 113 |
< |
/* Set context for binning function evaluation and get cumulative path |
| 113 |
> |
/* Get cumulative path |
| 114 |
|
* coefficient up to photon lookup point */ |
| 120 |
– |
worldfunc(RCCONTEXT, ray); |
| 115 |
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raycontrib(rayCoeff, ray, PRIMARY); |
| 116 |
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| 123 |
– |
/* Save incident ray's direction and hitpoint */ |
| 124 |
– |
VCOPY(rdir, ray -> rdir); |
| 125 |
– |
VCOPY(rop, ray -> rop); |
| 126 |
– |
|
| 117 |
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/* Lookup photons */ |
| 118 |
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pmap -> squeueEnd = 0; |
| 119 |
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findPhotons(pmap, ray); |
| 154 |
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if (pmap -> srcContrib) { |
| 155 |
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const PhotonPrimary *primary = pmap -> primary + |
| 156 |
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sq -> photon -> primary; |
| 157 |
< |
OBJREC *srcMod = objptr(source [primary -> srcIdx].so -> omod); |
| 157 |
> |
SRCREC *sp = &source[primary -> srcIdx]; |
| 158 |
> |
OBJREC *srcMod = objptr(sp -> so -> omod); |
| 159 |
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MODCONT *srcContrib = (MODCONT*)lu_find(pmap -> srcContrib, |
| 160 |
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srcMod -> oname) -> data; |
| 161 |
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|
| 162 |
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if (srcContrib) { |
| 163 |
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/* Photon's emitting light source has modifier whose |
| 164 |
|
* contributions are sought */ |
| 165 |
+ |
double srcBinReal; |
| 166 |
|
int srcBin; |
| 167 |
+ |
RAY srcRay; |
| 168 |
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|
| 169 |
< |
/* Set incident dir and origin of photon's primary ray on |
| 170 |
< |
* light source for dummy shadow ray, and evaluate binning |
| 171 |
< |
* function */ |
| 172 |
< |
VCOPY(ray -> rdir, primary -> dir); |
| 173 |
< |
VCOPY(ray -> rop, primary -> org); |
| 174 |
< |
srcBin = evalue(srcContrib -> binv) + .5; |
| 175 |
< |
|
| 176 |
< |
if (srcBin < 0 || srcBin >= srcContrib -> nbins) { |
| 169 |
> |
if (srcContrib -> binv -> type != NUM) { |
| 170 |
> |
/* Use intersection function to set shadow ray parameters |
| 171 |
> |
*/ |
| 172 |
> |
rayorigin(&srcRay, SHADOW, NULL, NULL); |
| 173 |
> |
srcRay.rsrc = primary -> srcIdx; |
| 174 |
> |
VCOPY(srcRay.rorg, primary -> pos); |
| 175 |
> |
VCOPY(srcRay.rdir, primary -> dir); |
| 176 |
> |
if (!(source [primary -> srcIdx].sflags & SDISTANT ? |
| 177 |
> |
sourcehit(&srcRay) : |
| 178 |
> |
(*ofun[sp -> so -> otype].funp)(sp -> so, &srcRay))) |
| 179 |
> |
continue; /* XXX shouldn't happen! */ |
| 180 |
> |
worldfunc(RCCONTEXT, &srcRay); |
| 181 |
> |
set_eparams((char *)srcContrib -> params); |
| 182 |
> |
} |
| 183 |
> |
if ((srcBinReal = evalue(srcContrib -> binv)) < -.5) |
| 184 |
> |
continue; /* silently ignore negative bins */ |
| 185 |
> |
|
| 186 |
> |
if ((srcBin = srcBinReal + .5) >= srcContrib -> nbins) { |
| 187 |
|
error(WARNING, "bad bin number (ignored)"); |
| 188 |
|
continue; |
| 189 |
|
} |
| 207 |
|
else fprintf(stderr, "Skipped contrib from %s\n", srcMod -> oname); |
| 208 |
|
} |
| 209 |
|
} |
| 210 |
< |
|
| 208 |
< |
/* Restore incident ray's direction and hitpoint */ |
| 209 |
< |
VCOPY(ray -> rdir, rdir); |
| 210 |
< |
VCOPY(ray -> rop, rop); |
| 211 |
< |
|
| 210 |
> |
|
| 211 |
|
return; |
| 212 |
|
} |
| 213 |
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|
