MAY 21, 2003
Fasten Your Seatbelts; It's Going To Be a Bumpy Night
Displacement and bump mapping in Adobe After Effects
by Ko Maruyama
Page 4 of 5



Turning our layer back on so we can see it, let's play.[an error occurred while processing this directive]First, let's soften the edges of the circle. Using typing (MM) open up the Mask properties. Let's feature the inner and outer mask. ALSO, set a keyframe for the MASK SHAPE. (I've resized my masks to a little smaller than frame so I can animate the scale dramatically.)

Next, we'll add FRACTAL NOISE, another great plugin (aren't you glad you got the production bundle?) EFFECT > RENDER > FRACTAL NOISE. You can sit around playing with this plugin all night. I'll just leave the default noise on and set a keyframe for EVOLUTION=0.



Next, we'll add a histogram modification. EFFECTS > ADJUST > LEVELS. I'll crank the WHITE levels especially. Because our displacement is based on the LUMINANCE of this precomp, it's important that there is a good contast in this image.



or



Jumping to the END of the precomp, let's set some new keyframes. First, FRACTAL NOISE: Evolution=180 degrees will do. Then, change the shape of the inner and outer masks. Some minor adjustments to your liking, you'll have a precomp that looks something like this:





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