Do unused shaders in scene use memory on GPU?

[GregCooper]

Pretty much the title. If I have materials/shaders in my scene that aren't assigned to any objects do they still take up memory on the GPU? It seems like VRay takes longer to prepare the scene if I have a lot of shaders so I figured they might be using memory

[hermit.crab]

No, unused materials are not loaded in the memory. You can take a look at the 'V-Ray messages' window after rendering to check the memory utilization of the scene's materials (also Geo, Lights, Light cache) as a confirmation.

[GregCooper]

Cool thanks for clarifying