6 modules - PI-VR GmbH

6 MODULES• Max Shadow Depth: Sets the maximum amount of shadow samples.» Photon Tracing Notes and Tips Photon Tracing has its main advantages ininterior scenes. In exterior scenes most of the light illuminates the scene directly,the default full global illumination mode in VRED shows the best performance inthis case.Be aware that the number of photons emitted doesn’t resemble the numberofphotons actually stored. If a photon misses the scene it will not be stored. Aphoton bouncing several times in a scene might be stored more than once.Tokeep the number of emitted photons as low as possible, place any light emittersin a way that most photons will hit the scene.When using Final Gathering scenes may suffer from light leaks if the photon radiusis set too large. Light leaks mainly result from bad geometry in architecturalscene. An example would be an interior of a room illuminated through a window,the walls being modelled as simple planes. Any geometry near the wall would getlight from outside the room since there is no actual thickness of the wall. Thesolution would be to actually model the outer walls as well. Reducing the lookupradius may also fix the problem but may require shooting more photons into thescene.Final gathering may also show problems in scenes with very strong indirectionswhere the scene is primarly illuminated by light resulting from reflections of awall. In these situations disabling final gathering may give you a cleaner result.» Display Output150» Color:• Monitor Colorspace:· Simple Gamma· sRGB IEC 61966-21· A.RGB98