animation settings

[epilectrolytics]

Please do not replace emitter objects with different kinds of lights, try to keep it as it.

BlendLuxCore warning:

Code: Select all

The scene contains a lot of light sources (1111), performance might suffer (each triangle of a meshlight counts as a separate light)

I don't know how light tracing actually works but it might be the case that trying to to render 1111 emitting triangles in 128 samples, even with direct light sampling cache, is impossible because every time another random subset is used.
I tried with BiDir and 128 samples and also PathOCL with all caches and 640 samples but couldn't get rid of the flicker (edit: with 2048 samples on GPU it is stable).

There is a BakeCPU engine in LuxCore that probably would be able to deal with such a setting, by baking caustics of many lights into diffuse emission materials and rendering later reflections only the result should theoretically be stable when animated, given the lighting does not change.
But BakeCPU is not accessible from Blender so that I cannot test it.

[daros]

Hi epilectrolytics, thanks for the tests and feedback!
We are testing the bake tools and we are progressing. One question: once we have the baked scene how do we can render it fast on luxcore? i mean how do we disable GI to save time and raytrace only transaprencies and reflections? Or is this supposed to be used only in external rendering engines?

[epilectrolytics]

As I said, I cannot test it since the current LuxCoreUI doesn't work on my Mac.

I can only quote what was said in the link I posted above:

5) once you have all maps, you can load "render-bakedallobjects.cfg" in luxcoreui to do the rendering with the created bake maps (i.e. with only one ray per sample).

Sorry for being of no help here, someone else needs to answer your question, maybe @CodeHD knows about it?

[daros]

Thanks epilectrolytics, let's see.

[CodeHD]

I don't have experience with the BakeCPU engine yet either, so unfortunately I can't give any specific advice on this topic.