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help with light rippling over turtle
hi all
i am having a lot of difficulty setting the luminance of pixels of one layer to another…it should be so simple but i have come unstuck.
i have a layer with a turtle on it animated using the puppet tool, it has been deep etched in PS.
i have a layer above it with fractal noise on it
the turtle layer is set to luma matte for the layer above it
the result affects the transparency of the turtle and not its overall luminance if this makes sense??
does anyone know what i am dong wrong? am i going about this the wrong way??
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3 Replies
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ok ok don’t worry i found a work around, export the alpha of the turtle only re-import and place at the bottom and then apply the fractal noise in multiply mode
The Electric Canvas
Large Format Projection Specialists
Sydney, Australia -
If I understood you right all you have to do is pre-compose your fractal noise layer by choosing Layer -> Pre-Compose and move all attributes into the new composition.
But as I said I’m not sure what you want to do. What do you want to accomplish exactly?
Dino Muhic – Media Producer
VFX – Motion Graphics – Web-Design – Or just ART
http://www.dinomuhic.com -
Jamil, I’m not sure if I exactly understand what you are doing, but I think you have misunderstood Luma Mattes.
They aren’t designed to affect the luminance of a source, but the transparency (just like an alpha matte). The difference is that it’s TAKING the luminance from the top layer and using that as a mask for alpha. So you are getting transparent areas on the turtle where the pixels are darker.
They are very useful, but as you’ve found, not for actually affecting luminance.
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