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Object into Vapor TP
If someone could direct me to a tutorial for this that would be great, ive recently been through the cmiVFX Training on thinking particles and am feeling pretty comfortable, but of course my first project using them at work im stuck on something they didnt touch on.
SCENE:
I basically have a solid 3D Arrow in the sky and a 3D airplane that is flying through it, in which case the arrow will burst into a sort of cloud like vapor as the plane hits it.
Now my plan as of now is to sort of fake it…having the 3d arrow as one layer then in a layer underneath having some particles with PvolumePosition using the arrow as group A, and a group B event set to turn on as the plane hits which causes all the chaos vaporous action, and i was just going to fade or do some kind of effect in AE to transition from the solid to the particle arrow…but id REALLY like to learn how to do it for real and not have to fake it. Can anyone help me with that?
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8 Replies
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You’d probably want to use the PFragment node to break up your object. The only thing is, the node works with existing geometry, so your object will have to be extremely subdivided to create the impression of vapor, i.e., it could be a ram killer.
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Would there be a way to maybe use the Fragment for the initial breakup…then fragment those pieces into a seperate, smaller particulate group based on the age?
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oh…and how do you set the initial shape to be the geometry using pfragment?
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You set the initial shape by generating one particle and assigning it to a group. Then use a PPass node to pass that group to a shape node.
Here’s a sample scene doing a double fragmentation:
https://www.3danvil.com/tutorials/Fragment%20Twice.c4d
hth
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Adam,
Ok, after seeing your project and looking over some other options i went into it this morning with TONS of confidence…but now only feeling like ive taken 10 steps back. Im trying to take your example but trigger the fragment events with the collision of a deflector, which i successfully did on my own yesterday with my first attempt (but i wasnt using fragment and didnt have the arrow as the initial state which was the prob). Here is a pic of what ive built most recently, ive been through a few trial and errors…mostly using the deflector to turn on a psetData to group “B”, which was close to working…but just left me with another single particle in the arrows place. Now ive simplified it and and trying to just straight up trigger the fragmentation with the collision but apparently im missing some steps as im getting no result at all. any suggestions?
Thanks for all the help!
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i just realized in my diagram i didnt have my frag “particle” connected to my Ppass, but didnt solve the prob when i connected it anyways
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I can’t see anything wrong other than what you noted. Can you post the scene?
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