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Stream of air over the outline of car?
im trying to create a stream of air over the outline of my 3d car , i made in 3dsmax and brought into after effects . i have a comp with a 3d car going down the freeway . the scenary changen from city to country etc.. and camera rotating around the car ..
ive used a adjustment layer with fractal noise and then masked out a stream above the outline of the car .. but its just not looking as good as i know it could . any help would be greatly appreciated
steve and dave pls forgive the grammar =) -
8 Replies
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something simliar to , a car in a wind tunnel .. with that stream of smoke going over the outline … the fractal noise mask’d does a decent job but im sure thier is a better way .. pls any help would be really cool
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Dont i need cs3 for the puppet tool??
im going to upgrade just cant afford it rite now
.yikesmike your a huge help around these forums .. you need a user of the month award or something seriously .your really helpfull i usualy look up your reply threads, because chances are your dropping Knowledge or a link to Knowledge .. thanks alot bro… -
I think your only option for a decent looking result would be a particle system (Particular is great, if you don’t have it you can try Particle Playground), possibly with some secondary effects applied like Median and Box Blur. The particle system would give you a sense of 3D depth that you’re likely lacking with fractal noise.
Darby Edelen
DVD Menu Artist
Left Coast Digital
Aptos, CA -
It might be a good idea to go back into the 3D app and generate the effect there, mostly because of the rotating camera and perspective change.
I don’t use 3DSMax, but you might be able to make a subdivided box that lies over the car and is bent to follow the car’s profile. It should probably be bevelled or have a flattened elliptical cross-section. Then you would apply an animated fractal noise movie created in AE to the bent box as a color/transparency texture map. Render this on its own, then import it into AE, blur it a bit and composite it over the car shot.
Hope that helps … 🙂
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The solution for this in AE’s 2d world is Foam. It has an alpha map input. You may need to create the layer to be four or five times as long as your car layer and then speed it up with vector and motion blurs to make it look like the smoke you’re after.
Your 3d app’s user support forums should be able to point you to many wind tunnels simulations, it is a common effect for 3d animators.
bogiesan
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thanks alot the foam idea sounds really solid . i just got 3ds max and my second time using it i did the car and i peakd out at that as far as my 3ds max skills go. thanks alot for the replys ..and good ideas .
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sorry double post .
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