Use Background shader

[zboog]

Is there any way to replicate the Maya/MR use background shader with Octane in Maya? This is the single feature that would make Octane the killer composting tool here at my studio.

[zboog]

Update - I discovered the "matte" checkbox in the octane diffuse material. That plus the alpha shadow checkbox in render globals is doing the trick for the particular shot we're working on where we need shadows but not the ground material.

[RickToxik]

Just out of curiosity, can you do camera projections with Octane? We use them a lot at our studio. But I guess in Octane they would cast indirect / illumination in the scene?

[Jolbertoquini]

Would be great if Octane could do something similar to MIP at Mray http://www.nvidia-arc.com/fileadmin/use ... uction.pdf
Speically render subset kind of patcher render fix to render a object with extra sampling at the scene when we need.

also Iray have this Light path expression would be also cool to have acsses to this kind of formula to do different renders fixed for compositing.

https://vimeo.com/86594869


But at the same time we have a excellent alpha methode at Octane because you still need do compositing any way I think we can use other way to have it. Bake the projection of the images into the uvs at Mari or Mudbox.

because in end of the day we need comp anyway right?

[zboog]

@Jolbertoquini, I agree very much! Having light-specific renders would be tremendously helpful in compositing.

It's a funny thing, though, because the reason this would be helpful is that compositing is the place where you can play around and see the results quickly. With Octane some of this playing around is now possible before you render. However, there are still a ton of times where you're putting all your shots together and you realize some inconsistencies that could be fixed if you had a few extra passes instead of re-rendering the entire shot or maybe even the entire piece.