LuxCoreRender Forums

Yes, the large amount of indirect light is probably responsible for the long render times. I also notice that most materials are very bright. You probably already know it, but make sure that a "white" material is never brighter than about 0.7-0.8, because if it's too bright there will be ...

Bidirectional Engine under GPU boost. They also compare Luxrender with they bidir GPU engine.

http://old.cescg.org/CESCG-2015/papers/ ... on_GPU.pdf

Extremely good idea and they are serious ! really interesting the fact that they took lux as a test is really promising.
Wow what a good news

Nice scene, i like the camera perspective, nice stairs also. Thanks you ! 18 hours seems too much. Yes tooooo much :shock: After more analysis of the project i come with theses conclusion and result: 1) 90% of the lighting in this project come throught indirect light.So it is really hard to render ...

What about the denoiser that uses prorender? Don't know a lot about RPR denoiser but what i can say is that darktable denoising feature is far enough for any purpose. just save your file in EXR file format to get the best result it also work with 16 bit png. The luxcore current alpha stage is focus...

Still running after a couple of time this is the update. This time it is stock render without post process :
I've also notice that glass lamp in the kitchen are to dark , it is not normal as i am in bidirectional at 16 + 16 deph plus glass2. I will check more.


Time == 18~hours

Hi ! This is a real production project i am testing to benchmark Luxcore alpha on complexe indoor scene.I keep the resolution at 1k. The project is still unfinished with a lot furniture and asset to model. The render is currently running this is a quick capture. Bidir == 16 + 16 deph Device == i7 67...

I would recommend to only compare final renders, not viewport renders. Both Cycles and LuxCore use rather suboptimal rendering settings/engines when doing viewport renders because they have to be optimized for low latency and fast interactiveness. I Understand but here i want to show the banding pr...

I can change the default and/or the threshold but you can always build a case where they will not work well. The real solution is the additional pre-processing phase I was talking about when discussing HDR visibility map (a light cache-like solution). Top Aaah Ok understood ;) . will try to avoid s...

Are you using a single mesh with more than 24 triangles ? LuxCore switch direct light sampling off for meshes with more 24 triangles. There is an option to re-enable direct light sampling but I assume it is not exposed in BlendLuxCore. To check the difference, render an image with exactly 24 triang...