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Activity Forums Adobe After Effects Lighting darker places of a scene

  • Lighting darker places of a scene

    Posted by Bruno Koch on February 16, 2011 at 7:43 pm

    Hi!
    I’m trying to light a scene with an artificial object.
    So far the only viable method that i have found was using a glow with an adjustment layer, which i masked out with a small circle. I linked the adjustment layer’s position to the object. While this works perfectly for some scenes i have a problem with one scene. In this scene there’s massive smoke/fog floating around, and since the glow works based off of threshold it always makes the smoke glow. Is there any other method to solve this? Like something that uses minimum and maximum thresholds? Is there an option or blending mode that i’m missing?

    Bruno Koch replied 15 years, 5 months ago 2 Members · 2 Replies
  • 2 Replies
  • Michael Szalapski

    February 16, 2011 at 8:02 pm

    I’m having some difficulty understanding what you’re asking for.
    If you’re asking what I think you’re asking, you could use Colorama to make the bright areas black and the dark areas black and the midtones white and use that layer as a luma matte.

    Or, perhaps a bit of rough rotoscoping in a precomp would do it.

    – The Great Szalam
    (The ‘Great’ stands for ‘Not So Great, in fact, Extremely Humble’)

    No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.

  • Bruno Koch

    February 16, 2011 at 8:10 pm

    I want to “light” the scene based on the lightness of the rock so that the light looks more natural and uneven. The only effect that i found which can do this is glow, with ~50% threshold. But this method doesn’t work for this scene because there is semitransparent smoke flying infront of the rocks, which picks up the glow because it is lighter.

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