by SergKlyosov » Thu Mar 30, 2017 4:40 pm
SergKlyosov
Thu Mar 30, 2017 4:40 pm
Goldisart, thank you for sharing the scene
I have downloaded it, but can't figureout how I can achieve alpha of VDB volume in that scene
Maybe here is some misunderstanding. I want to render dust clouds in octane and composite them on top another image in photoshop or similar programs
For example I have a car and light it in two-three lighting passes, like in photography and them composited this shot in PS
After that I want to add dust from tires, so I will render VDB in octane, cut it out and place on top of car image
Right now I have found only one solution: put RGB texture to emission slot of Octane volume and apply diffuse material with black Diffuse to the rest of objects and render black and white image. But it renders insane amount of time
I attached couple images, so you can more clearly understand what I'm talking about
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Win 10 64 | RTX 3090 | i9 9980XE | 64GB RAM