Chandan Kumar with a tutorial on using RGB passes out of a 3D application inside of After Effects and using them for flexible compositing. In this tutorial, he is using MAya for the 3D application, however RGB passes can be made either automated or manually anywhere really.
after effectsafter effects tutorials
RGB Pass Compositing In After Effects
lesterbanks
3D, VFX, design, and typography. Twenty year veteran instructor in all things computer graphics.
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