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Rendering source baseline

This manual describes local engine master at Redot 26.4.0 alpha. The narrative review date is 2026-11-04. Source references share this snapshot so that quarterly refreshes can update one baseline and regenerate the reference material.

Source revision: 82c6c949656f.
Narrative review revision: 82c6c949656f8af31a37e0381048beb381fcbb27.
Primary source coverage: 140 headers and 235 other source files.
Marker catalog: 180 matching source lines.
External search index: 291 files.

The native backends are described from source inspection. Documentation tests validate links, routing, and Mermaid rendering; they do not validate GPU behavior on Windows, Apple, mobile, or web hardware. GDExtension and redot-cpp are outside this manual's scope.

The primary coverage includes every committed header, implementation, and shader in servers/rendering, GLES3, Vulkan, D3D12, Metal, and EGL, plus the GL context build directory. Platform, module, scene, and core integration points appear in the source maps and dependency pages. Generated files and third-party library implementations are excluded.