I a lot of VFX breakdown that uses something they call "render passes". From what I see, they are rendering the clip in seperate ways (like rendering the ambient occlusion, specular, shadows, depth of field, etc individually and then combine it). Is there any way I can do this?
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$\begingroup$ Of course. But it really depends on the shot, your render engine and particularly on your further compositing/math workflow/skills whether this makes sense to do at all. For the most cases this is huge overhead, but if you really need full control about image color values this answer could help implementing a workflow. $\endgroup$– p2orCommented Nov 1, 2015 at 14:22
1 Answer
Actually, your question is a little bit vague, you have everything you need to begin to understand this topic on the Blender Reference Manual
Short answer, because this is a huge topic, and your question implies that the concept itself isn't quite clear for you (the reason I advised you to first read the manual ;) ), but the concept is to :
- activate the needed passes in the
render layers
section
- use nodes to separate the different passes
This opens a lot of possibilities, because you can independently tweak every passes, export each ones to different locations, if you have just one parameter to modify, it doesn't need to re-render everything, etc...