LuxCoreRender Forums

@B.Y.O.B: what is the default "visibilitymapcache.map.samplecount" in Blender ? The default in LuxCore has changed over time. I noticed, in the scenes posted here, this kind of setup: scene.lights.__WORLD_BACKGROUND_LIGHT__.visibilitymapcache.map.width = 256 scene.lights.__WORLD_BACKGROUND...

Is anyone experiencing PATHOCL crashes after seeing "PhotonGI evaluating best radius"? When manual testing, this happends occasionally, and re-run luxcore with the SAME scene usually fixed the problem. But now I'm running scripts to run luxcore automatically (i.e. batch rendering), this c...

Not happy about the broken rendering region, hopefuly it can be fixed in the future. As simple work around: - run a full image rendering and check the log for the suggested radius: [LuxCore][0.466] EnvLightVisibilityCache evaluating best radius [LuxCore][0.621] EnvLightVisibilityCache best cache ra...

I tried to replicate the crashes with a basic scene and I cannot get it to completely stuck, but this one does crash: 279_luxcore2.blend This happens when I add glass in the scene (note that when I added object with glass to new - fully open scene just with hdri, it didn't crash) EDIT: this one act...

You could use point lights with some radius > 0 to have smooth shadows, maybe with a spotlight IES profile to shape the cone. This, point light with radius (to get smooth shadow borders) and IES spot light profile (to get a cone of light). Otherwise, have you tried to enable hybrid forward/backward...

I don't understand why you have a so dark scene? I need to export the scene in LuxCore format and than render outside Blander, you are probably using some kind of Blender image post-processing pipeline and that kind of stuff is not exported (because it is not done at all by LuxCore). This is the mo...

I'm not sure...but without them I don't have that fireflies. I'm preparing a simpler scene and I'll send you. You are using an extremely small area light with an 90 degree emission angle, it is not a spot light in LuxCore "speaking". Try to change the light set up from this (i.e. the curr...

My test On Direct light performance cycles portals vs Luxcore Env__Cache . ALL on CPU i7 4930k (avoid opencl/Cuda Delta performance diference on GPU) Material roughness has a huge impact on noise and the glossy materials used in Cycles and LuxCore are clearly different, are you using Disney materia...

lacilaci wrote: ↑Thu Jul 25, 2019 10:31 am shuts down right at the start of rendering (after compilation)
exception.jpg

I will try to create an isolated case, probably when working on a new scene so I know for sure what in the scene is possibly broken...?

Try to check if it happens only with PATHOCL and not with PATHCPU.

B.Y.O.B. wrote: ↑Thu Jul 25, 2019 10:49 am are losing MIS if you disable the visibility (at least that's how it was until recently, not sure if that has changed?).

No, no, it is still true, the last change was about emitting light correctly for transparent meshes.