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Create a 3D stroke from a null object
Hi everybody,
I’m trying to make a 3D map animation.Up to now, the map is a 3D layer which contains a jpeg of the map (so, it is flat, but it can spin around 3 axis). Later on I’ll add the 3D terrain with Element 3D.
But that is not the problem. I’m trying to create a path which has to start at a certain time, and finish at another time. When I worked on 2D maps (still in 3D layers), it was easy because I could simply create a shape layer and add a trim path to it, then parent the path to the map.
Now, I don’t know how to create a 3D path! I’ve read it is possible to parent a layer to a null object position, so that layer moves along a 3D path. Similarly, Is there a way to generate a stroke from the position of a null object?
If not, are there other ways to achieve this?
There is an example (the orange curve is just the 3D position of the null layer):
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5 Replies
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unless you are you going to move the camera in perspective and want to simulate that the stroke is not flat, I think a flat 3d path should be enough. but if so maybe this will help: you can use BAO Mask Avenger script: https://aescripts.com/bao-mask-avenger/ to generate nulls from shape/mask vertices in 3D
Roei Tzoref
After Effects Artist & Instructor
♫ Ae Blues Tutorials -
You could use Trapcode Particular. CC Particle world might also work, but would be a bit tricker.
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The map is going to move and rotate, so a 3D flat path would be enough. Furthermore, the path is going to track mountain footpaths, so the altitude can vary a lot and a flat path would not be suitable for that purpose…
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The map is going to move and rotate, so a 3D flat path would be enough. Furthermore, the path is going to track mountain footpaths, so the altitude can vary a lot and a flat path would not be suitable for that purpose…
However, I didn’t understand the shape/mask vertices in 3D…. is it possible to create a 3D mask of a layer? In that case, would be possible to apply the effect “Generate > Stroke”?
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[Davide Mitidieri] “e map is going to move and rotate, so a 3D flat path would be enough. Furthermore, the path is going to track mountain footpaths, so the altitude can vary a lot and a flat path would not be suitable for that purpose…”
couldn’t you just make the path flat 3d and fake where there is altitude?
[Davide Mitidieri] ” is it possible to create a 3D mask of a layer? “
in you mean that the path is in true 3D space – you will need a plugin or script for that. the one I showed you does enable the path to be manipulated in 3D space.
Roei Tzoref
After Effects Artist & Instructor
♫ Ae Blues Tutorials
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