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Forums Adobe After Effects Expressions Is it possible to link any effect value to a grayscale map?

  • Is it possible to link any effect value to a grayscale map?

  • Man Singh

    January 17, 2022 at 12:57 pm

    Can we use luminance of a black & white layer to define which areas should have an effect applied? For example, can we apply turbulent displace to a layer than use a precomposed fractal noise layer to define how much turbulent displace has to be applied & to which areas of the layer?

  • Filip Vandueren

    January 18, 2022 at 3:02 pm

    In this case, you could replicate turbulent displace with a regular displacement effect that references a noise map.

    You can then use a 2nd fractal noise layer to mix in patches of 50% gray: 50% = no displacement.

  • Man Singh

    January 19, 2022 at 4:06 pm

    I used turbulent displace only as an example. I want a method where I can link intensity/slider value of any effect to luminance of a luminance map.

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