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Hello,
so I am now tasked with creating realistic closeup snow. SSS in VrayMTL seems to work well for this, but unfortunately rendertimes with are are extreme, so it's not really usable as long as I want to be able to render out my animation. Both FastSSS2 as well as AlSurface do not work as they are based off a solid SSS models, which make it impossible to get transparency towards the edges of snow intersecting with something, making the snow always look like wax rather than frozen water.
So ScatterVolume would be ideal for this, it is fast and is based on transparent SSS model. The issue here is that I just can not get white volume out of it. Even if I crank up scatter color to 255, bounces to 20, it just looks as if it was clamped somewhere around RGB 160. The best I can do is get somewhat bright gray color. Is there anything I can do to make scatter volume white? For example Corona's VolumeMTL does not suffer from this issue. If I make very dense volume sphere with scatter color of RGB 210, and put it next to a sphere with diffuse material that has same diffuse value, they more or less match. Where as in V-Ray, if I do the same, it looks like a coal brick next to snow.
so I am now tasked with creating realistic closeup snow. SSS in VrayMTL seems to work well for this, but unfortunately rendertimes with are are extreme, so it's not really usable as long as I want to be able to render out my animation. Both FastSSS2 as well as AlSurface do not work as they are based off a solid SSS models, which make it impossible to get transparency towards the edges of snow intersecting with something, making the snow always look like wax rather than frozen water.
So ScatterVolume would be ideal for this, it is fast and is based on transparent SSS model. The issue here is that I just can not get white volume out of it. Even if I crank up scatter color to 255, bounces to 20, it just looks as if it was clamped somewhere around RGB 160. The best I can do is get somewhat bright gray color. Is there anything I can do to make scatter volume white? For example Corona's VolumeMTL does not suffer from this issue. If I make very dense volume sphere with scatter color of RGB 210, and put it next to a sphere with diffuse material that has same diffuse value, they more or less match. Where as in V-Ray, if I do the same, it looks like a coal brick next to snow.
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