… assertions

Move camera_ProjectionParams declaration from Transform.glsl to
Common.glsl where it is actually used by remapDepthBufferEyeDepth().
Update ShaderLab test to match new PBR.shader structure with inlined
ShadowCaster/DepthOnly passes. Fix PrecompileABTest macro expansion
test to find Forward Pass by name instead of hardcoded index.

…te PostProcess/AO

Split shader package into two layers, create .shader files for
PostProcess and AO, simplify FXAA3_11.glsl for ShaderLab
compatibility, remove Shader.create() from core passes.

…ng with pre-migration source

FXAA3_11.glsl was incorrectly stripped of conditional branches
(FXAA_DISCARD, FXAA_FAST_PIXEL_OFFSET, FXAA_GATHER4_ALPHA) and type
alias macros during the initial migration. Restore the full original
1028-line version to preserve all code paths.

FinalAntiAliasing.glsl now includes the FXAA_GLSL_130/120 conditional
defines and uses FxaaFloat type aliases, matching the pre-migration
FinalAntiAliasing.fs.glsl source exactly.

…ly across all material shaders

PBR/BlinnPhong/Unlit/PBRSpecular now reference Utility/ShadowMap and
Utility/DepthOnly via UsePass instead of inlining or referencing PBR.
Fix _resolveUsePass to handle shader names containing "/" by parsing
from the end. Reorder registerShaders() so Utility shaders are created
before material shaders.

- Remove `path` parameter from `Shader.create()` ShaderLab overload
- Remove `_shaderRootPath` from ShaderPass
- Remove `basePathForIncludeKey` from IShaderLab, ShaderLab, and Preprocessor
- Remove relative path resolution in Preprocessor._replace()
- Delete ShaderChunkLoader and simplify ShaderLoader
- Clean up basePath references in tests and devtools example

- Remove _createShader wrapper that handled ShaderPool name conflicts
- ShaderPool no longer registers VS/FS fallbacks, so no conflict exists
- Fix Shaders/index.ts noise registrations reverted by case issue

…m core

- Strip shader package to zero dependencies (pure data exports only)
- Move include registration to ShaderPool.init() and shader registration
  to ShaderPool.registerShaders() in core
- Split exports: ShaderLibrary/index.ts for fragmentList,
  Shaders/index.ts for complete shader sources
- Auto-register built-in shaders in Engine._initialize() after ShaderLab
  is set, so external callers no longer need manual register calls
- Remove registerIncludes/registerShaders from all tests, examples, e2e
- Update docs to reflect automatic registration

… DepthOnly passes

- ShadowMap.shader: bind RenderQueueType = material_ShadowCasterRenderQueue
- DepthOnly.shader: bind RenderQueueType = material_DepthOnlyRenderQueue
- Remove duplicate lowercase shaders/utility/ entries from git index

…ransform

- Remove double shadow intensity mixing in sampleShadowMap, move fade calc back inside the if block
- Restore inverse-transpose normal transform for BlinnPhong skinning

… add sources subpath

- Add libs/ directory with 21 precompiled .gsp files (checked into git)
- libs/index.ts aggregates all .gsp imports as IPrecompiledShader objects
- src/index.ts re-exports from libs/ (FinalAntiAliasing kept as string fallback)
- Add src/sources.ts for editor use: raw .shader strings via /sources subpath
- Add package.json exports field with "." and "./sources" subpaths
- Add *.gsp type declaration in global.d.ts
- rollup-plugin-glsl: handle .gsp files (JSON → object export)
- rollup-plugin-shaderlab: revert to .gs only, add buildStart/watchChange hooks
- rollup.config.js: add sources build entry for shader package
- scripts/precompile-shaders.mjs: full/incremental precompile script
- ShaderPool: add missing UIDefaultSource registration

- Revert lazy getter in BasicResources, Background,
  PostProcessUberPass back to eager constructor init
- Migrate render states from TS to .shader files:
  * Blit/BlitScreen: DepthState disabled
  * BackgroundTexture: DepthState CompareFunction LessEqual
  * Sprite/Text: BlendState, DepthState, RasterState
- Remove unused imports

macOS case-insensitive FS caused both Shaders/ and shaders/
paths to coexist in the git index after directory rename.

…ile compatibility

- Sprite/Text shaders: use PBR-consistent variable names for render states
  (renderQueueType, sourceColorBlendFactor, blendEnabled, etc.)
- Skybox/SkyProcedural shaders: add hardcoded DepthState and RasterState
- BasicResources._create2DMaterial: use shaderData.setInt() instead of renderState API
- BaseMaterial: migrate setIsTransparent/setBlendMode/setRenderFace/_setAlphaCutoff
  from renderState API to shaderData.setInt()
- PBRMaterial: migrate renderQueueType to shaderData.setInt()
- SkyBoxMaterial/SkyProceduralMaterial: remove TS render state code (now in shader)
- Fix precompile script: handle undefined throw, non-fatal exit on failure
- Add precompile dedup flag to avoid repeated runs in b:all
- Regenerate all .gsp files to reflect shader source changes

- Move shaderLab configuration back to _initialize() where it was on dev/2.0
- registerShaders() stays in constructor (precompiled path doesn't need ShaderLab)

- PBR: material_OcclusionTextureCoord Float → Enum(UV0/UV1),
  material_AttenuationDistance range max 1 → 5
- PBRSpecular: same OcclusionTextureCoord fix, add Clear Coat group
  (5 properties matching PBR)
- BlinnPhong: material_EmissiveColor Color → HDRColor,
  material_Shininess range (1,1024) → (0,100)
- Particle: add full Editor block (Base, Emissive, Common)
- 2D/Trail: add full Editor block (same as Particle)
- Sky/Skybox: add Editor block (TintColor, Exposure, Rotation, CubeTexture)
- Sky/SkyProcedural: add Editor block (Exposure, SunMode, SunSize, etc.)
- Fix precompile script error logging to print full stack trace

…ces subpath

- Add libs/ to tsconfig include so tsc generates types for .gsp imports
- Update package.json types paths to types/src/ (tsc output structure)

…omment handling

- Add ShaderLabUtils.skipComment() as shared primitive for comment detection
- Add ShaderLabUtils.removeComments() to strip all comments preserving newlines
- Preprocessor.parse() now strips comments before include expansion and macro collection,
  fixing false matches on #include inside block comments (e.g. FXAA3_11.glsl)
- BaseLexer.skipCommentsAndSpace() reuses ShaderLabUtils.skipComment()
- Lexer overrides skipCommentsAndSpace() to only skip whitespace since
  comments are already stripped by Preprocessor
- IShaderLab._parseShaderPass return type: IShaderProgramSource | undefined