Author Topic: Capture Light in Multi-Pass  (Read 627 times)

2022-11-30, 01:33:56

BigAl3D

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OK so if you look at this image, my task is to add the Christmas lights around the edge of the poster. I have the wires and lights, I have the bloom and glare, BUT how can I generate a layer that only has the light on the sign? I want to set it up so the sign can be switched out in AE or Premiere, but the layer with the light spots will still affect it. That make sense?

The second image points to the light effect I'd like to capture on it's own layer.

2022-11-30, 16:13:33
Reply #1

BigAl3D

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I came up with a solution, although maybe not the best way. I did a separate render where I put a plane that takes up the entire screen lined up with the poster. I put a mostly black material on it and compositing tags on the lights to not be seen by the camera.

This gives me a luma matte basically. I then add to the graphic and set it to Screen or Add. I also use the poster to clip the highlight effect to keep it only on the poster.