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Mojo Rizen
04-28-2008, 04:59 PM
I’m putting together an animation of an automotive spray gun for a piece on paint atomization.

In part of the animation the paint comes out of the gun onto a panel, then the pressure changes and that paint atomization changes creating a different texture in the paint.

At first I thought of using particles but when you have to use thousands of partials that kills the render.

I’m setting up a lighting effect to create the paint spray out of the gun, but I’m struggling a bit with the paint on the panel. The edges have to show the over spray and the paint has to move along with the gun. Think of how it looks when you grab a spray can and put down a line of paint.

I’m looking for suggestions, or links to other posts on this topic. I’ve been searching under “spray paint” and “spray paint animation” in various sections but have not had much success.

I’m currently on Cinema 4D 9.5.07

Thanks for any advice on this one, texturing is one of my weaker areas.
Activator
04-28-2008, 05:05 PM
I'd make a texture in Photoshop of the final "sprayed" paint, and then animate it in After Effects (or similar) and then use that as an animated material on the car/object. If you time it all out, the spray gun can move and "spray" your light, and the animated texture will "follow" the gun.

HTH

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Nyvann
04-28-2008, 05:53 PM
Use Nulls to drive Particular in AE.

I would use animated textures as stated. Place a null at the spray gun's tip, and a null at the surface paint contact point(s). Export AE comp, make sure to put External Composite tags on those nulls and use them to drive Trapcode Particular. Then, the spray gun I would have 2 systems on, a intense spray, and a cloudy mist, and on the surface null create a billowing cloud that spreads out and up.

I'm not sure on on the surface you're painted if its flat enough or just a subtle curve, instead of rendering animated textures in C4D, maybe use overlay layers in AE on a blank surface, use a Distort/Deformers/Masks to fake it out.
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