demo.git - Vide-coded 64k demo system

Age	Commit message (Collapse)	Author
35 hours	refactor: Simplify effect render API and fix uniform initialization	skal
	Root cause: Uniform buffers created but not initialized before bind group creation, causing undefined UV coordinates in circle_mask_compute.wgsl. Changes: - Add get_common_uniforms() helper to Effect base class - Refactor render()/compute() signatures: 5 params → CommonPostProcessUniforms& - Fix uninitialized uniforms in CircleMaskEffect and CNNEffect - Update all 19 effect implementations and headers - Fix WGSL syntax error in FlashEffect (u.audio_intensity → audio_intensity) - Update test files (test_sequence.cc) Benefits: - Cleaner API: construct uniforms once per frame, reuse across effects - More maintainable: CommonPostProcessUniforms changes need no call site updates - Fixes UV coordinate bug in circle_mask_compute.wgsl All 36 tests passing (100%) handoff(Claude): Effect API refactor complete
2 days	feat: Add Scene1 effect from ShaderToy (raymarching cube & sphere)	skal
	Converted ShaderToy shader (Saturday cubism experiment) to Scene1Effect following EFFECT_WORKFLOW.md automation guidelines. Changes: - Created Scene1Effect (.h, .cc) as scene effect (not post-process) - Converted GLSL to WGSL with manual fixes: - Replaced RESOLUTION/iTime with uniforms.resolution/time - Fixed const expressions (normalize not allowed in const) - Converted mainImage() to fs_main() return value - Manual matrix rotation for scene transformation - Added shader asset to workspaces/main/assets.txt - Registered in CMakeLists.txt (both GPU_SOURCES sections) - Added to demo_effects.h and shaders declarations - Added to timeline.seq at 22.5s for 10s duration - Added to test_demo_effects.cc scene_effects list Shader features: - Raymarching cube and sphere with ground plane - Reflections and soft shadows - Sky rendering with sun and horizon glow - ACES tonemapping and sRGB output - Time-based rotation animation Tests: All effects tests passing (5/9 scene, 9/9 post-process) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>