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AnyImage/openspec/specs/image-result-materials/spec.md
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image-result-materials Specification

Purpose

TBD - created by archiving change refine-image-output-semantics. Update Purpose after archive.

Requirements

Requirement: Image color drives generated material IOR Level

系统 SHALL 将 Plane、Depth Plane 与 Cutout 的非 Shadeless 生成材质中 O Image Layer 的 Color 输出直接连接到 Principled BSDF 的 IOR Level,同时保留既有 IOR、Base Color、Roughness、Alpha、Normal 与 Displacement 连接。

Scenario: Dark image content suppresses highlights

  • WHEN 生成材质采样到黑色或暗色图片内容
  • THEN Principled BSDF 的 IOR Level SHALL 接收对应的低颜色值,从而降低该区域的高亮

Scenario: Bright image content preserves direct color response

  • WHEN 生成材质采样到白色或亮色图片内容
  • THEN Principled BSDF 的 IOR Level SHALL 接收 O Image Layer Color 的直接转换值,不经过额外缩放或固定上限

Scenario: Generated material keeps its IOR value

  • WHEN Cutout 或 Depth Plane 以 IOR 1.2 创建材质
  • THEN 系统 SHALL 保留 IOR 1.2,并由 Color 独立驱动 IOR Level