Thank you! 
Thank you 
Hey, one question.
Does LuxCore support Blender Principle Shader(s) natively?
It could simplify a lot changing from Cycles to LuxCore and back depending on the project, it would help a lot with having a proper object library and such things, workflow speed is a super important thing, and the main reason why we lock down all our projects to Cycles, if it could be streamlined it cold be super easy to use both engines.
Cheers!
Not yet. But it is planned to add the principled shader to LuxCore.
I agree with you that it would make an automatic material converter much easier to write.
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I have published an experimental release with support for Nvidiaâs Optix denoiser in the viewport.
The denoiser is started once the viewport render is paused. It denoises in the background without blocking Blenderâs interface.
Download link on the release page:
Here is a video showing the feature in action:
This release only runs on Windows. The Optix denoiser requires an Nvidia GPU.
Note that I do not guarantee that this experimental branch makes it into the official releases.
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And what about Linux?
I am not aware of an Optix build for Linux.
The addon and LuxCore would work on Linux of course.
More than a material converter I mean an internal interpreter so we donât have to touch materials to shift from one engine to the other, this would simplify working with LuxCore and Cycles A LOT!
Yes, this would be my priority.
Internally the âinterpreterâ and âconverterâ could share a lot of code.
The âinterpreterâ has the problem that we canât mark incompatible nodes in the UI.
The converter could insert a special node to mark incompatibilities. And the user can manually fix the node tree in such a case.
Anyway, I think itâs moot to implement a converter before LuxCore supports the principled shader.
There is Optix Denoiser for Modo on Linux.
But is there a standalone Optix binary for Linux?
There should be, yes.
In Houdini if you want to use the Optix Denoiser you have to download it first, according to the docs.
http://www.sidefx.com/docs/houdini/render/optixdenoiser.html
On the bottom there are the download links for Windows and Linux.
If you download Optix SDK from nvidia site (requires account), it contains .so libraries, including âliboptix_denoiserâ. Iâm not sure if something else is required.
Hi just quickly ask I want to use on Wine but the vcred13 wonât install. Would it be possible to use the dllâs and sort of get it to run without installing vcred? Iâve read there are compatibility problems with Wine and most of the vcreds but in other software there was a glean of success through getting the dllâs which in itself is pretty intensive, seemingly snatched by investigating new registry entries midway through vred install etc, so I thought perhaps someone has Wine advice to save me from wild experiments?
Iâve built the denoiser on linux (Delan Russelâs denoiser) but itâs throwing some unknown exception when I try to denoise, and I donât know how to diagnose it. Probably just missing some libraries to be also present in the denoiser folder, canât tell
I tried to modify the scons config but it fails trying to find the optix library.
Could you share how did you compiled it?
It had issue finding optix too, I copied some libraries from sdk to contrib/optix/lib (lib64 folder from sdk specifically I think)
contrib/optix/lib? I used contrib/optix/bin folder, and needed to change some things on scons and main.cpp so it could find the includes.
But it still canât find it.
Yes created lib folder in contrib/optix and then put liboptix.so, liboptix.so.51, liboptix.so.5.1.0 into that directory. I actually have optix 5.1.1 I donât think it should be a problem but thatâs the current version from nvidia. Are you using scons? What is the exact error? I had few, and I literally started copying files left and right until it âworkedâ 