What about a Volume Cache?
Posted: Wed Jun 19, 2019 12:15 pm
Caching very improves look of openCL paths renders. There are already three caches in LuxCoreRender: direct light, indirect light and caustics.
Looking at the images of my former post I got the idea that there is missing another cache, one for scattering volumes.
Obviously openCL without any cache cannot render well scenes with scattering volumes. Although OIDN did a good job, you should have seen the raw image, there are nervous noise pattern resuming. Indirect cache renders a rather foggy image but without beams of the reflector spots and without caustic spots on the floor. Whereas caustic cache renders these spots almost like BiDir does but also without the beams. Interestingly, default spot lamps‘ beams are rendered with or without caches. Please note BiDir is much less foggy than openCL with indirect cache.
These observations lead me to the affiliate question.
Is it possible to improve openCL further with the help of a cache for scattering volumes? If yes, openCL path gets another boost and, thinking about BiDir SDS issue, ahead of BiDir regarding time and realism.
Looking at the images of my former post I got the idea that there is missing another cache, one for scattering volumes.
Obviously openCL without any cache cannot render well scenes with scattering volumes. Although OIDN did a good job, you should have seen the raw image, there are nervous noise pattern resuming. Indirect cache renders a rather foggy image but without beams of the reflector spots and without caustic spots on the floor. Whereas caustic cache renders these spots almost like BiDir does but also without the beams. Interestingly, default spot lamps‘ beams are rendered with or without caches. Please note BiDir is much less foggy than openCL with indirect cache.
These observations lead me to the affiliate question.
Is it possible to improve openCL further with the help of a cache for scattering volumes? If yes, openCL path gets another boost and, thinking about BiDir SDS issue, ahead of BiDir regarding time and realism.