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This is for those of you who like ray or path tracing:

I'd been dying to try this out: shadertoy.com/view/3t2BDz It's not exactly bias free but it converges really fast! Combined with a denoiser, you may be able to use it in video games without any hardware raytacing

Using @keenanisalive and @rohansawhney1's Walk-on-Sphere for actual direct lighting. Compared to brute force BSDF sampling on the right.

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