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Light Fog follow up problem
Hi, a few days ago I asked about how to create a light fog in a stadium scene – and I was able to do that thanks the people in this forum – anyway utilizing fractal noise (and animating it’s evolution property over time) as a track matte for a mask in the shape of a cone I was able to make one.
Anyway my problem lies on how to make the fog gradually fade out – as it reach floor of the stadium – the light eventually weakens/fades out as it reaches the floor.
anyway here’s a link to a still image of what I did om Flickr.
https://www.flickr.com/photos/52166364@N00/175884171/
again thanks for any input/advice.
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3 Replies
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Well, a good thing would be to keyframe the Opacity.
Justin Productions
Tangerin01@hotmail.com
Adobe After Effects 6.5 Professional -
I’m pretty sure that when Vagrant said ‘gradually’ he was referring to a spatial fade, not a temporal. Keyframing the opacity wouldn’t work.
I would:
1. Precomp all layers that make up the fog
2. Make a new solid, with a black to white ramp on it.
3. Precomp the solid.
4. Use it as a Luma Matte for the fog precomp.
5. Then go in and adjust the ramp, moving the black point to the bottom of the rays, and the white to the top. You might have to adjust the colors too, changing the black to a dark grey would make the lights not COMPLETELY fade out.That’s just what I would do.
Ben Tubb
“Of course, I could be wrong. In fact, I’m probably wrong.”
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Hey thanks Ben I will try that. Thanks a lot.
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