Which I am a bit unclear about how this is handled in Vray. Your post has also lead to me reading a bit more about spectral rendering. Is adding quick setups for workflows involving other colour gamuts in the planning? It seems like when we are finally creating UHDTV content - we will have to switch between these settings (possibly on a per job basis). The inputs and outputs can be defined as whatever you want - but Vray itself is pretty much Colour space agnostic (with the exception of colour temperatures). So as I understand it Vray is a lot like Nuke then. Thanks Vlado, This is really interesting to read. For the temperatures, we would need to switch the internal V-Ray spectral color space to ACEScg (right now it can only be switched between sRGB and CIE). Ideally, we should recognize the ACEScg color space specified in File node textures, similar to how we now recognize the sRGB one. In the V-Ray VFB, the OCIO color correction needs to be enabled for conversion from ACEScg to ACES for display. Any color nodes such as Ramp and VRayUserColor may have to be passed through the VRayOCIOTex texture applied to put the color in ACEScg.Ĥ. Any other bit depth would be plain ACEScg.ģ. When bringing these textures into Maya, they would add V-Ray texture gamma attributes to the File nodes to convert from ACEScg sRGB to ACEScg.Ģ. They converted their 8-bit color textures to ACEScg but with sRGB profile baked in. One of our clients recently approached rendering in ACEScg like this (maybe you can consider this client to be a "big boy" ) They didn't use Maya's color management yet.ġ. But I would be interested to learn how the Big Boys with carefully managed colour pipelines would use Vray in different ways.
What are the practicalities of changing these settings in Vray? I take it that those Maya colour management preferences have no effect on Vray? So using your example - Where do I have the options to define my materials, lights and textures in ACEScg? Also what would happen if I have a ACEScg rendering space and I want to use the temperature based tools you have mentioned (unpredictable resulting colours I take it?)įor me making TVCs out of the box is perfect. So if I want to output to a P3 projector I would set my rendering space to a DCI-P3 colour space and if I want to output to a UHDTV I would set it to a rec2020. The ideal workflow should be changing my rendering colour space for my output device. Would you be able to expand a bit on this? sRGB - nice and simple.īut I am still a bit confused about the practical way you would render in a different colour space.
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