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Time Remap certain areas
I have a complex question on how to make a specific effect by using time remap. I am not certain it is possible at all.
Imagine this:
Comp 1: Second 0 = Entire screen is blue. (A solid or whatever)
Comp 1: Second 1 = Entire screen is red. It changes from blue to red over 1 second.Comp 2 is a gradient from white to black.
Comp 1 and Comp 2 are included in Comp 3.
Is it possible to make “Comp 3: Layer ‘Comp 1′” display as a red-blue gradient by using Time Remapping and doing some kind of trick? I am not looking for a way of creating red-blue gradients – but I am looking for a way of referring to frame 0 from the source in one area of the screen and frame 1 in another area. And these areas should be defined from a gradient layer (comp 3: layer ‘Comp 2’ in this case).
The idea is to animate Comp 2 and thereby revealing different frames.At first I tried to enable Time Remapping on “Comp 3: Layer ‘Comp 1′”, and deleting the last keyframe – displaying no animation (just blue). After that I applied Time Difference to the same layer using “Comp 3: Layer ‘Comp 2′” as a map. I was hoping that AE would reveal the brighter areas as red, but because there is no animation occurring in “Comp 3: Layer ‘Comp 2′” it remains blue.
Maybe it is a complex way of explaining it, but until I see the simplicity in it myself, I cannot do it in any other way.
Thanks in advance
Chortorn -
6 Replies
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I think you might be looking for “Time Displacement”.
This effect uses a luminance map to remap a layer’s pixels forward or backward in time.
Check the help file for a little more detail on it. I will say.. it is a total CPU hog.
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Harry J FrankMotion. Graphics. Design.
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harryjf gave you the right direction, I suggest you look at Aharon’s 3rd tutorial on Displacement Mapping (click on jis head above and scroll down), from 6 minutes on in that tut he covers Time Displacement and there are several pitfalls that can lead to heavy render times, like Making sure the Time Displacements “Time Resolution (fps)” is set to the same or less than your comp fps (also the effect defaults to itself not the gradient you want to refer to), anyway check out Aharon’s tut, cause time displacement will do what you want.
If you use the effect Ramp to make your Gradient controlling layer you need to precompose it, so it will render the ramp before the Time Displacement Refers to it, similarly if you use Fill to change the color of your solid (Blue to Red in your example) then you need to precompose that too.
It should work fine for you though.
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Thanks for the answers. It is not what I want though. I am not looking for the effect of Time Displacement itself – or Time Remapping – but perhabs a combination thereof or something completely different.
My array of words in english (I am from Denmark) seems to be insufficient to explain what I want to do – therefore I have illustrated it at:http://www.cybinart.com/misc/desiredResult.wmv
http://www.cybinart.com/misc/source.wmvThe way I have reached the desired result is fake – and it will only work for this example.
If the result was created from a Time Remapped layer, containing a red solid with a Hue/Saturation (frame 0 – Hue = 0; frame 25 – Hue = 350), then I would be happy.Chortorn
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Does it have to be with Time techniques? Couldn’t you just do it with colorama?
Ben Tubb
“Of course, I could be wrong. In fact, I’m probably wrong.”
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Yes, I want it to be made with Time Remap – in the end I would not do it with colors. I will replace the sequence in the time remapped comp with whatever: A morph between two pictures, a jpeg-sequence or something else.
It saves me from making one mask per frame, which would be likely to kill my computer and require a lot of work.
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