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mini_math mat4 is row-major; WGSL mat4x4f is column-major. Matrices
uploaded without transposing were interpreted as their own transpose on
the GPU, causing RotatingCube and Renderer3D to render upside-down.
- Add gpu_upload_mat4() to post_process_helper for standalone uploads
- Add Uniforms::make() to RotatingCube::Uniforms (handles transpose)
- Add GlobalUniforms::make() and ObjectData::make() to renderer.h
- Update renderer_draw.cc and visual_debug.cc to use make()
handoff(Gemini): matrix layout bug fixed across all rasterized effects.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Converts all static_cast<>, reinterpret_cast<> to C-style casts
per CODING_STYLE.md guidelines.
- Modified 12 files across gpu, 3d, util, tests, and tools
- All builds passing, 34/34 tests passing
- No functional changes, pure style cleanup
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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- Check user_data before calling GetMeshAsset() in renderer_draw.cc
- Prevents crash when rendering manually loaded OBJ meshes with --debug
- Remove duplicate wireframe call in test_mesh.cc (now handled by renderer)
- Keep add_mesh_normals() call (not auto-handled by renderer)
Fixes: Bus error when running 'test_mesh house.obj --debug'
Root cause: GetMeshAsset(0) on non-asset meshes
Test: All 32 tests pass, test_mesh works with --debug flag
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This commit integrates the plane_distance functionality by:
- Adding shared_user_data to Object3D for storing type-specific data.
- Modifying SceneLoader to read and store plane_distance in shared_user_data for PLANE objects.
- Updating ObjectData struct in renderer.h to use params.x for object type and params.y for plane_distance.
- Modifying Renderer3D::update_uniforms to populate ObjectData::params.y with plane_distance for PLANE objects.
- Adjusting blender_export.py to correctly export plane_distance and reorder quaternion components.
A manual step is required to update WGSL shaders to utilize ObjectData.params.y for plane distance calculations.
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