I am facing issue while I am rendering Fur with Arnold CPU everything works fine but the moment I changed it to GPU it renders Fur with any textures and takes longer time than CPU. I am using RTX 2070 with Ryzen 3700x with Arnold Version 4.4.1.
Did you try increasing the global specular ray depth? While that solution might have been in the maya hair shader arnoldanswer that Stephen linked to, that should also apply to Arnold hair shader since under the hood it's all the same.
@Thiago Ize I am using Houdini and your solution isn't logical why should I need to raise ray depth while using GPU when CPU is rendering fine, Maybe I am wrong
Because the GPU code path doesn't yet support the extra_depth param on the hair shader, so you need to globally increase the specular ray depth. Please give it a try.
I raised the specular ray depth to 64 as suggested by you to 64 just to see if it is working but it is not working and I think Solidangle knew about it too
Just to be clear, this didn't make your gpu fur less dark? Or are you referring to the missing texture issue, which yeah, the specular depth has nothing to do with. At this point I think it'll help if you post a comparison cpu/gpu image so that we're all on the same page. Complete logs with stats could also help.
I know this thread is old, but I hit this issue and tried increasing Render Settings > Arnold > Ray Depth > Specular to 16, and it didn't make any difference. Any other ideas?
