vray OSL not working when used with a vrayExtraTex render element

[christophe_bertrand1]

Hello, well everything is in the title.
Here on the attached picture a basic osl shader which returns red.
When attached to a vrayExtraTex, the buffer is empty.

Obiviously, i don't mind a red shader, but i wrote this one to troubleshoot the osl i am actually working on.

I checked vray documentation, such simple osl shaders are supported and extraTex is supported.
By the way, if i attach my shader to a vraymtl diffuse, it works but i need my osl to render a complete buffer.

Actually i have a workaround : i plug my vrayosl to a vrayCompTex, then the compTex to the extraTex and i have what i need.

Regards

[vladimir_krastev]

Hi, thanks for posting. VRayExtraTex does render osl textures in my test.

Here I used a FourPointGradient.osl from 3ds Max's built in ones


Here is the same test with VRayOSLTex and a test osl file:


Could you archive your scene and send it for review? You can do that here or trough the support contact form.

[christophe_bertrand1]

Hello
Ty for your answer. In your example it does work because the osl is also assigned to the asset. Maybe as diffuse component.
My shader have to render a complete buffer but i still need the beauty rendering. The purpose of my osl shader is to encode some datas required by another sotfware to achieve a custom result.

[vladimir_krastev]

Hi again. There is an issue with OSL textures applied to the VRayExtraTex render element. They are not rendered on GPU/Standalone. The workaround is to use VRayCopmTex and to load the VRayOSL into it or apply the VRayOSL to an object in the scene using VRayMtl. The issue is reported as a bug in our system (VSLANG-309).