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Timeline for After effects cc render time issues

Current License: CC BY-SA 3.0

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Mar 1, 2016 at 20:54 comment added mypoint Would it be better to put different elements in pre-comp or leave everything in one giant comp? like background in one pre comp, particles in other. Also would it decrease overall render time, if I render each such pre-comp separate with alpha channel and then put everything back together to render the final comp? Or it's a waste of time?
Mar 1, 2016 at 20:52 comment added mypoint @stib I will give it a go tomorrow.
Mar 1, 2016 at 20:52 comment added mypoint @tomh I am not applying texture to them, but I am playing around with setting when each particle emit particles. I think it was aux settings. I have set it to to 1 particles per second, but I think because each particle emits another particle is the reason why it's slow.
Mar 1, 2016 at 20:20 comment added stib Expressions are pre-calculated I believe. So if there are heavy expressions in the comp it takes a while before it starts rendering. You could try converting all the expressions to keyframes to test whether it's the expressions. I agree with Tom: rendering to h.264 isn't the best way to go, because h.264 uses inter frame compression each frame is dependent on lots of other frames, which makes it slower to render.
Mar 1, 2016 at 19:44 comment added tomh It could do- depends what the time expressions are doing. Did you try a pro res render instead f h264? Tends to be quicker in my experience. Also how many particles are we talking about? Are you applying textures to them?
Mar 1, 2016 at 19:33 comment added mypoint Could the slowdown be also because I am using expression? Or it does not affect it much. I have applied expression to velocity and particles per second.
Mar 1, 2016 at 15:08 history answered tomh CC BY-SA 3.0