| # | Line 108 | Line 108 | rayorigin( /* start new ray from old one */ | |
|---|---|---|
| 108 | if (r->crtype & SHADOW) /* shadow commitment */ | |
| 109 | return(0); | |
| 110 | /* ambient in photon map? */ | |
| 111 | < | if (r->crtype & AMBIENT && photonMapping) |
| 112 | < | return(-1); |
| 111 | > | if (ro != NULL && ro->crtype & AMBIENT) { |
| 112 | > | if (causticPhotonMapping) |
| 113 | > | return(-1); |
| 114 | > | if (photonMapping && rt != TRANS) |
| 115 | > | return(-1); |
| 116 | > | } |
| 117 | if (maxdepth <= 0 && rc != NULL) { /* Russian roulette */ | |
| 118 | if (minweight <= 0.0) | |
| 119 | error(USER, "zero ray weight in Russian roulette"); | |
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