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Re: Object transparant except part facing light

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Sam Treadway
Re: Object transparant except part facing light
on Oct 30, 2019 at 2:17:46 am
Last Edited By Sam Treadway on Oct 30, 2019 at 2:19:42 am

If you are using standard materials on the buildings:
Add a Lumas shader to the alpha channel and crank up the illumination to maybe 200% and contrast to 100%. This will render everything in shadow per building transparent.

Now to also make the shadows that are cast on other buildings transparent or match the BG color (assuming it's a solid BG):
Add a sketch style tag to each object or group them and add it to the group null.
Enable shading and set it to gradient. Default gradient patterns should be fine for now.
Turn on Illumination, Shadows and Colorize.
On colorize gradient, keep the black and set the other color to match your BG color.

Here is a quick examples based on what I interpreted from your description. Is This what you're sorta looking for:




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