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architecture
- Fixed black screen by ensuring clear operations in Pass 2 when Skybox pass is skipped.
- Resolved WebGPU validation errors by synchronizing depth-stencil state.
- Implemented rotating skybox using world-space ray unprojection (inv_view_proj).
- Improved procedural noise generation (multi-octave Value Noise).
- Restored scene integrity by correcting object indexing and removing artifacts.
- Updated documentation (TODO.md, PROJECT_CONTEXT.md).
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- Added ObjectType::SKYBOX for dedicated skybox rendering.
- Created assets/final/shaders/skybox.wgsl for background rendering.
- Implemented a two-pass rendering strategy in Renderer3D::render:
- First pass renders the skybox without depth writes.
- Second pass renders scene objects with depth testing.
- Corrected GlobalUniforms struct in common_uniforms.wgsl and src/3d/renderer.h to include and explicit padding for 112-byte alignment.
- Updated Renderer3D::update_uniforms to set the new and zero-initialize padding.
- Reverted sky sampling logic in renderer_3d.wgsl to for SDF misses, preventing background bleed-through.
- Updated test_3d_render.cc to include a SKYBOX object with Perlin noise.
handoff(Gemini): The skybox is now correctly rendered with Perlin noise as a dedicated background pass. Objects render correctly without transparency to the sky. All necessary C++ and WGSL shader changes are implemented and verified.
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- Updated ProcGenFunc signature to return bool for error reporting.
- Implemented gen_perlin (Fractional Brownian Motion) in procedural/generator.cc.
- Added support for sky texture in Renderer3D and its shader.
- Integrated Perlin noise sky texture in test_3d_render.cc.
- Caught and handled memory/generation errors in AssetManager and TextureManager.
- Assigned reference numbers to all remaining tasks in documentation.
handoff(Gemini): Side-quest complete. ProcGenFunc now returns bool. Perlin noise added and used for sky in 3D test. Windows build remains stable. All tasks numbered.
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- Updated ObjectData to include inv_model for reliable world-to-local mapping.
- Enabled SDF raymarching path for all objects in test_3d_render (floor is now a large SDF BOX).
- Implemented robust normal calculation using SDF gradient for all objects.
- Standardized lighting (light_dir = 1,1,1) and diffuse+ambient model.
- Refined calc_shadow with instance-based skip_idx and robust bias.
- Fixed non-uniform scale handling in shader by extracting min scale from model matrix.
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- Implemented dynamic resolution support in all shaders and effects.
- Added explicit viewport setting for all render passes to ensure correct scaling.
- Fixed 3D shadow mapping by adding PLANE support and standardizing soft shadow logic.
- Propagated resize events through the Effect hierarchy.
- Applied project-wide code formatting.
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- Implemented full support for non-uniform scaling by calculating and passing the 'model_inverse_transpose' matrix to the shader for correct normal transformation.
- Added 'transpose()' and 'inverse()' methods to the 'mat4' class in 'mini_math.h'.
- Refactored the shader to use the new matrix for lighting rasterized objects.
- Updated the test scene to use a rasterized floor (CUBE) instead of an SDF one, ensuring it receives correct lighting and shadows even with non-uniform scale.
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- Updated Renderer3D shader to include 'map_scene' and 'calc_shadow' functions.
- Shader now iterates over all objects (up to kMaxObjects) to evaluate the scene SDF globally.
- Implemented hard/soft shadows from a fixed directional light.
- Updated GlobalUniforms struct with proper packing/padding for WebGPU compatibility.
- Captured 'GPU BVH & Shadows' task in PROJECT_CONTEXT.md for future optimization.
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- Added 'src/3d/visual_debug.h/cc' to implement wireframe rendering.
- Integrated VisualDebug into Renderer3D with a static global toggle.
- Added '--debug' command-line option to 'demo64k' and 'test_3d_render' to enable wireframes.
- Updated 'src/gpu/effects/hybrid_3d_effect.h' to expose the debug setter (reverted later as static method used).
- Ensured full cross-platform compatibility (native and Windows) for the new debug module.
- All code guarded by STRIP_ALL for final release.
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- Fixed test_sequence by restoring MainSequence::init_test for mocking.
- Corrected CMakeLists.txt dependencies and source groupings to prevent duplicate symbols.
- standardizing Effect constructor signature for seq_compiler compatibility.
- Implemented Hybrid3DEffect using bumpy Renderer3D and procedural NOISE_TEX.
- Updated MainSequence to support depth buffer for 3D elements.
- Formatted all source files with clang-format.
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- Updated asset_packer to correctly parse PROC(...) syntax using regex, handling nested commas.
- Implemented runtime dispatch in AssetManager for procedural generation with dynamic memory management.
- Added procedural generator functions (noise, grid, periodic).
- Added comprehensive tests for procedural asset lifecycle (generation, caching, invalidation).
- Fixed C++ string literal escaping in asset_packer.
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- Replaced white noise with smooth value-like noise.
- Implemented periodic texture generation (seam blending).
- Integrated bump mapping into Renderer3D using finite difference of displaced SDF.
- Updated test_3d_render with noise texture and multiple SDF shapes (Box, Sphere, Torus).
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- Extended mini_math.h with mat4 multiplication and affine transforms.
- Implemented TextureManager for runtime procedural texture generation and GPU upload.
- Added 3D system components: Camera, Object, Scene, and Renderer3D.
- Created test_3d_render mini-demo for interactive 3D verification.
- Fixed WebGPU validation errors regarding depthSlice and unimplemented WaitAny.
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