[jcelerier]

Documents the shader pipeline as it works after ossia/score#2364. Every statement was checked against score's code at master b3ba4155eb.

Language references

• ISF (languages/isf.md):
  • Header syntax shared by all shader families, and input naming rules.
  • Input defaults and controls.
  • IS_DEPTH and the depth macros.
  • Per-field sampler resolution (inlet setting, then shader JSON, then default) and cubemap mips.
  • Pointer inputs; straight vs _PREMULTIPLIED reads; IMG_PIXEL in the image's own pixels.
  • Header refusals.
  • Pass formats, the last pass, depth (declared in PIPELINE_STATE) and size expressions.
• CSF (languages/csf.md):
  • RESOURCES image (storage) vs texture (sampled, with IS_ARRAY / CUBE / STATIC); INPUTS in a compute shader.
  • Storage image rules, PERSISTENT history and formats.
  • Buffer layouts, size control, device limit and cable ranges.
  • Attribute decoding.
  • Indirect record layouts.
  • Auxiliaries, passes, $COUNT_ / $BYTESIZE_.
• Raw raster (languages/raw-raster.md):
  • Strict pipeline state values, blend keys and stencil.
  • Draw counts and backend limits.
  • Iteration attachments, MSAA, depth, multiview.
  • Scene texture pool.
• Vertex Shader Art (languages/vertex-shader-art.md):
  • Defaults, primitive modes and events.
  • Raw read orientation.
  • Mouse (clip space) and the vertexshaderart touch history.
• GLSL (languages/glsl.md): coordinate notes.

Devices and processes

• Window device: cursor/gl, cursor/clip, touch/points, touch/history, and how shader inputs bind to them.
• Shader processes:
  • Texture inlet sampler rows.
  • Shader errors in the Messages panel.
  • .glsl drops and include changes.
• Other process pages: Render Pipeline controls and blend labels, VSA, Compute Shader runtime limits, Model Display Near/Far ranges, Scene Filter name matching and per-draw filtering, Asset Loader.

Also corrects a few errors on these pages: audioHistogram, RESOURCES entries without TYPE, BUFFER_USAGE LAYOUT, the storage size control, straight-alpha IMG_* reads.

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🤖 Generated with Claude Code

https://claude.ai/code/session_01JeL19ofVgPe9u9q7J1V9ex