CNA_CNAEXT=ON builds modules/graphics-ext. This module contains exactly these public
classes and enums:
| Public API | Purpose |
|---|---|
AsciiPostProcessEffect, AsciiQuantizeMode |
CPU quantization and glyph rendering through a direct Draw API. |
CRTEffect, CRTMaskType |
Portable CRT stylization shader, usable as a SpriteBatch effect. |
DepthEffect, DepthEffectMode, DitherMode |
Colour-depth/palette reduction and ordered dithering, usable as a SpriteBatch effect. |
DebugDraw |
Batched wireframe lines, boxes, spheres, frusta and crosses using core BasicEffect. |
ShaderCodeEXT, ShaderPackageEXT, ShaderPackageSelectionEXT |
Portable shader payloads, variant selection and diagnostics used by the retained effects and core ShaderEffect package overloads. |
ShaderBindingTypeEXT, ShaderBindingRequirementEXT |
Resource-binding descriptions inside a portable shader package. |
The ASCII font atlas and quantizer are internal. The CRT and depth shaders retain GLSL ES, desktop GLSL, SPIR-V, WGSL and HLSL variants. Direct rendering follows the ordinary render-target plus SpriteBatch/effect pattern; no post-process chain is required.
The former HDR render pipeline, pass framework, shadow engine, clustered rendering, probes,
compute-driven engine helpers and PBR material abstraction were removed in the alpha-stage scope
reduction. PbrEffect, SkinnedPbrEffect, glTF and CNB/CNJ remain in core graphics/content.
See the scope audit for the dependency classification and the
future DebugGizmos design intent.