Unity Volumetric Spotlight - Custom ray-marching shader

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Bodhi Donselaar

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Published on September 10, 2018 11:26:26 PM ● Video Link: https://www.youtube.com/watch?v=mHKIDXSmXNw

Duration: 1:27

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Spotlight has a camera child that matches the field of view.
It renders everything in view with a world position shader to a rendertexture.
A cone mesh's pixel shader on the spotlight ray marches with 8 samples along the view direction.
It adds a light value to the final image if not behind an object, the light is added with the correct value on the cookie texture.