I’m as excited about VrayRT on GPUs as anyone, and I’m aware there are still unsupported features, but what I found today is pretty glaring. I set up a test scene to investigate and what I found is that the only thing that VrayRT will recognize in a Mat’s diffuse or reflect slot is a color or a bitm…

Like the blend map, both Falloff and Mix maps use multiple maps which requires a pre-render set-up time which can slow down the GPU considerably. Hopefully we’ll soon get a build that will use the first GPU render to cache a bitmap that will be used for subsequent GPU renderings using these maps. -…

Most welcome. Oh yeah, you asked about a workaround. Don’t know if it would work in your particular case (especially the Falloff), but when using some of these complex maps with RT/GPU I’ve been rendering out flat-shaded bitmaps using the standard renderer(s), and then applying that map back onto t…

Unfortunately my stainless steel shader is very dependent on falloff - which as you hinted at can’t be baked in very readily. But since I only use RT/GPU for pre-viz, I think the most sensible thing to do is to bypass the fancy falloff/mix map portion of the shader and settle for a straight bitmap i…

…only after they’ve implemented Bercon maps and Max tiles for me :wink:

Haha, tiles is the first thing i noticed that was missing! I rarely use that map so i didn’t think too much of it. I think all of these things stem from the same issue that Alan enlightened me to: pre-flight computation of mutliple map operators. I really have no idea what’s involved in getting tho…

Falloff and Mix completely unsupported?

V-Ray V-Ray Common Hardware

renderfarmer August 10, 2011, 4:42pm 3

Thanks, Alan. Very insightful! Knowing is half the battle.

best way to convert scene units Metres to MM ?

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Falloff and Mix completely unsupported?

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