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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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< |
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< |
$Id$ |
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> |
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*/ |
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VCOPY(r.rorg, emap -> photonOrg); |
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VCOPY(r.rop, emap -> photonOrg); |
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r.rmax = FHUGE; |
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r.rmax = 0; |
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for (t = 0; t < emap -> numTheta; t++) { |
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for (p = 0; p < emap -> numPhi; p++) { |
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/* Choose a new origin within current partition for every |
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emitted photon to break up clustering artifacts */ |
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photonOrigin [emap -> src -> so -> otype] ((EmissionMap*)emap); |
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/* If we have a local glow source with a maximum radius, then |
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restrict our photon to the specified distance (otherwise no limit) */ |
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if (mod -> otype == MAT_GLOW && !(emap -> src -> sflags & SDISTANT) |
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&& mod -> oargs.farg[3] > FTINY) |
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ray -> rmax = mod -> oargs.farg[3]; |
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else |
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ray -> rmax = 0; |
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rayorigin(ray, PRIMARY, NULL, NULL); |
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ray -> rmax = FHUGE; |
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if (!emap -> numSamples) { |
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/* Source is unmodified and has no port, and either local with |
