three-gpu-pathtracer
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Add Procedural Env Map Helper?
Add an option / shader for more easily generating a procedural env map and a demo that shows the sun, etc. It could be generated on the GPU, copied to the CPU, and then used as an envmap.
https://threejs.org/examples/?q=sky#webgl_shaders_sky can this example generate hdr image ? its a shader on a huge cube
https://threejs.org/examples/?q=wat#webgl_shaders_ocean