lb2110 / volumetricclouds

Basic VolumetricClouds shader for FlaxEngine

VolumetricClouds for FlaxEngine

Basic VolumetricClouds shader and WorleyNoise generator for FlaxEngine

This is a port from Unity to FlaxEngine.

Original repository: https://github.com/SebLague/Clouds

I tried this for fun and to learn without prior knowledge of 3D rendering and shaders. There are some tasks still open. I don't know if I will continue to work on this. Feel free to make it better and open a PR.

TODO:

• Enhance performance (I am missing in-depth knowledge to do this myself). It pushes my GTX 1060 from 20% to 90%.
• LightColor0 not correct / not the atmospheric color ("Sunrise/Sunset")
• (Perhaps fixed: WorldSpaceLightPos0 is incorrect -> light absorption towards the sun does not work)
• Cloud "fog" seems pixely, not smooth
• Shader for distance clouds
• Correct height for clouds, make it more realistic?

volumetricclouds's Issues

Compute shader (Noise Generator) problem?

Tested with latest Flax Engine (1.7.1), but engine crashes...

Modifying a few API Differences ( MainRenderTask.Instance.CustomPostFx.Add to MainRenderTask.Instance.AddCustomPostFx etc ) C# code is compiled, but compute shader crashes.

NoiseCompute.flax assign to actor is broken, and does not compiled. After some fiddling and deleting original .flax file NoiseCompute.flax is reconstructed from NoiseCompute.shader and assigned to actor without crash anyway, but noise generation is not working well.