material override as render element

[fellazb]

Hi there,


Is it possible to have an option for a material override as a render element instead of only being able to use this as a render override option? This way you can easily get a good look on how light behaves when adding shaders\lights and so on and use this pass for several post effects.

If this feature is already implemented please let me know, because I can't find it.

[maru]

Well, you can add a pass with custom texture/map (CTexmap pass) but I'm not sure if it would be even possible to add a custom material pass. You wrote it would be good for checking how light behaves. Then let's imagine you would render the scene normally + put a pass with red material on everything. Light would behave completely different - first of all, it would bounce off red light so this would mean double calculations for your beauty pass and custom material pass. Maybe I'm dumb but that's how I see it. :P

[fellazb]

Maru,

Thanks for your reply.

I'm aware of the functionality of the Ctexmap pass, but as you said this won't let you apply a material pass. I think it would be a good feature when using a greyish diffuse material so you'd have a typical clayrender. Therefor you can easily switch between the beautypass and the clayrender to better identify light distribution.
Besides that a clayrender can become very useful when animating and using a more sketchy style of combining a beautypass and a clayrender.

Anyway, this topic isn't really how to use clayrenders for an extra artistic approach but more to see if a material pass could be implemented as a render element. And reading your comment I see there isn't a way to do so yet. So I'd like to know if this is technically possible and if someone could dive into this.

[Ondra]

Sorry, because of the way shading is implemented, this is not possible. The best that can be done is a script to automate assigning override mtl->rendering->removing override mtl sequence.