What do Houdini Karma and Blender Cycles documentation say about naming, compressing and handing AOVs (including Cryptomatte) to compositing?

Partially verified: the curator re-read S31, S33; S32, S34, S35 were not re-read by the curator and rest on the producer's pinned reading. Karma lets multipart EXR compression be set per AOV via a Render Var LOP and its Cryptomatte vars take an overlap limit (6 recommended) and an external manifest (embedded as metadata if unset); Blender shader AOV names are free text used in both the AOV Output and Render Layers nodes, provided they do not clash with enabled passes, and Cycles light groups give per-light Combined passes. Curator qualifications: Partially verified: the curator re-read S31, S33; S32, S34, S35 were not re-read by the curator and rest on the producer's pinned reading. Curator GET 2026-10-23 of the sources not re-read (mechanical source evidence, not semantic verification): S32: HTTP 200, bytes differ from the producer pin; S34: HTTP 200, bytes differ from the producer pin; S35: HTTP 200, bytes differ from the producer pin. Code and docs read 2026-10-22; nothing rendered or written. Karma Render Var page (ray:noholdouts tip), Blender Cryptomatte and Output pages not re-read; RenderMan docs unavailable raw. Unversioned live pages. Limitations: Code and docs read 2026-10-22; nothing rendered or written. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

{
  "citations": [
    {
      "url": "https://www.sidefx.com/docs/houdini/nodes/lop/karmarendersettings.html",
      "note": "SideFX Houdini docs: Karma Render Settings LOP (live); Blender Manual: Render Passes (live), Shader AOV; Light Groups"
    },
    {
      "url": "https://www.sidefx.com/docs/houdini/nodes/lop/rendervar.html",
      "note": "SideFX Houdini docs: Karma Render Settings LOP (live); Blender Manual: Render Passes (live), Shader AOV; Light Groups"
    },
    {
      "url": "https://docs.blender.org/manual/en/latest/render/layers/passes.html",
      "note": "SideFX Houdini docs: Karma Render Settings LOP (live); Blender Manual: Render Passes (live), Shader AOV; Light Groups"
    },
    {
      "url": "https://docs.blender.org/manual/en/latest/compositing/types/mask/cryptomatte.html",
      "note": "SideFX Houdini docs: Karma Render Settings LOP (live); Blender Manual: Render Passes (live), Shader AOV; Light Groups"
    },
    {
      "url": "https://docs.blender.org/manual/en/latest/render/output/properties/output.html",
      "note": "SideFX Houdini docs: Karma Render Settings LOP (live); Blender Manual: Render Passes (live), Shader AOV; Light Groups"
    }
  ]
}