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#ifndef lint |
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static const char RCSid[] = "$Id$"; |
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#endif |
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/* |
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================================================================== |
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Photon map support routines for emission from light sources |
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(c) Lucerne University of Applied Sciences and Arts, |
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supported by the Swiss National Science Foundation (SNSF, #147053) |
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================================================================== |
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$Id$ |
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*/ |
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/* Find geometry declared as photon ports */ |
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{ |
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OBJECT i; |
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OBJREC* obj; |
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OBJREC *obj, *mat; |
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/* Check for missing port modifiers */ |
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if (!ambset [0]) |
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error(USER, "no photon ports found"); |
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error(USER, "no photon ports"); |
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for (i = 0; i < nobjects; i++) { |
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obj = objptr(i); |
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mat = findmaterial(obj); |
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if (inset(ambset, obj -> omod)) { |
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/* Check if object is a surface and NOT a light source (duh) and |
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* resolve its material via any aliases, then check for inclusion in |
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* port modifier list */ |
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if (issurface(obj -> otype) && !islight(mat -> otype) && |
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inset(ambset, objndx(mat))) { |
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/* Add photon port */ |
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photonPorts = (SRCREC*)realloc(photonPorts, |
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(numPhotonPorts + 1) * |
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numPhotonPorts++; |
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} |
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} |
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if (!numPhotonPorts) |
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error(USER, "no valid photon ports found"); |
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} |
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