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Re: Optimize Render Speed by understanding comps, layers, expressions and effects

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Remi Monedi
Re: Optimize Render Speed by understanding comps, layers, expressions and effects
on Jan 13, 2019 at 7:11:06 pm
Last Edited By Remi Monedi on Jan 13, 2019 at 8:13:14 pm

Hi everyone, sorry for the late reply and Happy New Year!

Thank you Dave for your answer! Actually I should have added the mention PREVIEW SPEED with RENDER SPEED in this Thread title. This is why I was asking very specific questions. I want to find the best/fastest way to work, preview and render complex projects in AE.
To help me answer it, I finally decided to make some simple test in AE, here are my conclusions :

1. BECAUSE even set to its "dead" value, an effect takes time to render,
(for instance a Displacement Map effect with Horizontal and Vertical Displacement value set at 0%)
> THE FASTEST WAY to "deactivate" an effect is to set the opacity of the ADJ layer to 0% (if it's on an Adjustment layer)
> OR the other way is to set the effect opacity (in Compositing Option) to 0%

2. 1 ADJ LAYER with a X EFFECTS is FASTER than X ADJ LAYERS with 1 EFFECT (each) which is also FASTER than X COMPS with 1 ADJ LAYER with 1 EFFECT.

3. Expressions are calculated each frame and makes preview/render slow
> Use keyframe if possible : Convert Expression to Keyframe
> Avoid Math function expression if possible
> Use a script
> Make expression more efficient (How ?)


If there are simple tricks to make expression more efficient, I'm interested!

Have a great day


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