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Can someone help me with this Composition [QUESTION]
I have a composition here where the light follows the path ect ect. Everyone has seen it before but after adapting a sample file for this I am confused as to what is wrong.
Basically, the path for the light to travel was re-designed and the flare flows along it perfectly but the light trail does not. It appears offset.
My comp size is different to the lighttrail comp size, but in theory it shouldnt matter as their both running along on their own.
For your convenience, I have posted the zip file up so you can look and hopefully, someone can tell me how to correct it so that the light trail layer flows along the path the same as the flare layer.
Thanks! Hope you can help!
https://www.kaptivate.com.au/street_up_comp.zip – It should become obvious what the problem is once you look at it with the track layer selected.
Ignore all movement on the other layer as there is no point adding the same sudo camera moves to the light layer if its not working yet.
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4 Replies
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I dont know if this help you, maybe you allready do that but, When I change the pixel aspect ratio to Square pixels match fine
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Just like PRGraphist said – make sure you are working with square pixels all the time. Certain plugins don’t handle anamorphic ratios, including the Trapcode ones (which is stated in the manual for those plugiun, if you were going to complain).
Mylenium
[Pour Myl
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Here’s my take on it, having seen your comp (thanks for posting it):
Particular is a “3D” effect that uses the comp camera. In your case, the offset is due to the fact that you’re trying to match a 2D motion with the 3d motion of Particular, and Particular is using the default camera, which, like any camera, creates parallax when things move off-center.
Here’s what I did:
1. created a camera that has no parallax, that is, an infinitely long lens at an infinite distance. Since we can’t do that, I created a camera with Z=1,000, focal length = 1,000. Good enough.
2. used the “grow bounds” effect to enlarge the Particular layer. I tried enlarging the solid, but the effect disappeared. Not sure why, no time to troubleshoot. You’ll see why I did this, when you do the next step.
3. With auto-orient off, moved the camera so the light trail matches the flare. The effect gets cut off because it goes beyond the solid hosting it. See notes below. Used grow bounds to fix, and moved camera to compensate.Some notes:
You should always create a camera explicitly when working in 3D, because using the default camera gives you little or no control over the camera.
You should always make your Particular layer the same size as the comp, and leave it centered in the comp, unless you have something different in mind and know what you’re doing.
You might want to use roving keyframes for the track so the particles are more evenly spread out, eliminating the thicker part near the beginning of the trail. If you can. It should solve the thickness issue.Does that help?
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Thanks All!
Yeah, square pixels helped initially, but I think I am going to re-construct the comp and do it the right way the first time. Thanks everyone, Great Help!
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