LuxCoreRender Forums

MaxToLux beta V0.0.4 3dsmax 2019 it's still for test use and not for final production. https://3dfine.com/down/lux/MaxToLux-Beta v0.0.4.zip Simple Material Scene. https://3dfine.com/down/lux/MaterialTest.zip MaterialTest.jpg What's new : 1- All materials and textures build from the ground 2- The mat...

I used opencl.cpu.use = "0" but it's not work exept i add 0 for cpu to opencl.devices.select = "10".
Anyway, it's work much better now.
Thank you.

You are great Dade, Not Only that fixes the issue but fixing this also fixes 3dsmax behavior too, and now it's much faster.
Thank you all.
Is there any suggestion for CPU workgroup size ?

I think thats gonna answer your question.

My Ryzen has no OCL driver and will only work natively, so I cannot test the original configuration of the file.

About OCL on AMD, I used this library once and was able to use OpenCL on AMD Ryzen, not sure if it works with your machine but you can give it a chance. http://portablecl.org/

Definitely there is an issue with v2.3 and 2.4 if I disable CPU manually by editing the scene config file, it will load successfully and render but still slower or at the best case with the same performance as GPU. But if I try to enable GPU and CPU OpenCL in render engine menu Luxcoreui will crush....

It tried v2.3 and it's slightly faster on PathCPU but the bad news isو its ganna crush any time I change the renderer to OpenCL or getting too slow on many scenes. Annotation 2020-05-13 155044.jpg Here a screen capture from what happened. LuxCore UI v2.3 2020-05-13 15-50-24.mp4 I'm Not sure but I do...

That's a good point let me check with v2.4 But I'm curious what kind of setup could possibly slow down GPUs so much, no matter which Lux version ? That's my whole point. GPU should be faster in any circumstances with such a simple scene with only two objects and one light and just a gamma correction.

I'm not completely sure but on my PCs here PathCPU runs faster than PathGPU. And I have good performance GPUs. It's same in LuxCoreUI and LuxCoreRender in 3ds max. I try the same scene on other machines and the result was the same whit Nvidia 2080, much better with AMD GPU but somehow the same. Perh...

Weldone.
Which revision could I use so I can add thin-film interference to MaxToLux?