LuxCoreRender Forums

I just realized that path depth is the most important part with this juice case . When I tried your scene with path sobol (path depth 30 all types) it was very confusing to see it were the diffuse bounces doing the trick. Apparently multiscattering in a volume is constrained by diffuse path depth! ...

lacilaci wrote: ↑

Tue Aug 06, 2019 8:52 pm

did you simply subdivide the sphere?

Yep

Sure, this is the scene I'm testing all the possibilities in: poolCaustics_testscene.blend Thanks! Sadly I'm not able to get any better results :( First I tried PathCPU+Metro (no PGI). In order to speed up things, I reduced path depth, set relative sun size to 4, roughness of glossy materials to 0....

lacilaci wrote: ↑

Tue Aug 06, 2019 1:34 pm

So the main question is... can this be done faster?

I guess all cache building starts with a visibility pass?
Maybe in case of PGI and ELVC the same first pass could be used for both to save time (combined building of separate caches)?

For camera animation only persistent cache is needed, which is exposed for PGI but not ELVC yet. For object animation we would need periodic indirect PGI which is not implemented at all, and for visibility cache I assume the same, I think @kintuX tested animating visibility cache and there was visib...

Now with single visibility map gone animation will be slower because Env.visibility cache takes longer to build.
It would help when the persistent visibility cache option could be exposed in blender 2.79 maintenance.

now look what we got here!!! PATHCPU! + Metropolis: Yes, somehow PathCPU metro does faster pool caustics than BiDir, the other solution would be caustic cache. From what I read you figured out everything yourself already, but if you might provide a scene with the wave bump texture I could do some t...

For testing hardly reproducible stuff like this it would be great to have Hybrid established as accessible engine in LuxCoreUI (HybridCPU & HybridOCL) with partition and glossiness threshold as parameters within the engine editor.

I have: 1) downloaded the latest daily build binaries for Windows (https://github.com/LuxCoreRender/LuxCore/releases/download/latest/luxcorerender-latest-win64-opencl.zip); 2) downloaded your test scene (https://forums.luxcorerender.org/download/file.php?id=5288); 3) done multiple renders with LuxC...

Seems there's even a difference between PT CPU vs PT OCL. I should have fixed this problem. Testing the latest build from today I can confirm that PathCPU and PathOCL now show same caustic brightness. Regarding the "caustics getting too bright, sometimes during render" issue I found out this: Scree...