Version 3.0.0-alpha.1:

Partially updated to MC 1.21.2

This update contains major breaking changes made by Mojang to shader declarations preparing the terrain for Vibrant Visuals. More breaking changes should be expected for later versions.

For this first alpha, only ShaderEffectManager#manage, ManagedShaderEffect and basic uniform manipulation methods are expected to work.

Feedback is welcome on the Satin GitHub page.

Changes

• Post process shaders are now loaded from post_effect and shaders instead of respectively shaders/post and shaders/program. By convention, files previously in shaders/program should go to the shaders/post subdirectory.
• Identifiers for ManagedShaderEffect have changed: mymod:shaders/post/example.json becomes mymod:example (the example.json file also needs to be moved to the post_effect directory)
• Includes (loaded from shaders/include) are now available in post process shaders
• Post-process effect format has changed:
  • inputs take a sampler_name, which will be suffixed with "Sampler" (e.g. "sampler_name": "In" becomes "name": "InSampler" in the shader definition)

see full changelog here