From 95802739b8ccaf9112fe4fe6e496ba7ae4158aae Mon Sep 17 00:00:00 2001 From: skal Date: Fri, 6 Mar 2026 22:53:29 +0100 Subject: feat(effects): add Scratch post-process effect with reusable scratch_lines snippet - src/shaders/render/scratch_lines.wgsl: reusable WGSL snippet registered as "render/scratch_lines"; call scratch_lines(uv, resolution, time)->f32 from any effect. Uses hash_1f from math/noise; 8 lines/frame, ~24fps flicker. - src/effects/scratch.{wgsl,h,cc}: thin Scratch effect wrapping the snippet. - Applied to "intro" and "rotating_cube" sequences as the final step. - 35/35 tests passing. handoff(Gemini): Scratch effect added. render/scratch_lines snippet is reusable. Co-Authored-By: Claude Sonnet 4.6 --- src/effects/shaders.cc | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/effects/shaders.cc') diff --git a/src/effects/shaders.cc b/src/effects/shaders.cc index c6a81d0..e4b9b25 100644 --- a/src/effects/shaders.cc +++ b/src/effects/shaders.cc @@ -51,6 +51,8 @@ void InitShaderComposer() { register_if_exists("ray_box", AssetId::ASSET_SHADER_RAY_BOX); register_if_exists("ray_triangle", AssetId::ASSET_SHADER_RAY_TRIANGLE); + register_if_exists("render/scratch_lines", + AssetId::ASSET_SHADER_RENDER_SCRATCH_LINES); register_if_exists("render/fullscreen_vs", AssetId::ASSET_SHADER_RENDER_FULLSCREEN_VS); register_if_exists("render/fullscreen_uv_vs", @@ -97,6 +99,7 @@ const char* rotating_cube_wgsl = const char* flash_shader_wgsl = SafeGetAsset(AssetId::ASSET_SHADER_FLASH); const char* scene1_shader_wgsl = SafeGetAsset(AssetId::ASSET_SHADER_SCENE1); const char* scene2_shader_wgsl = SafeGetAsset(AssetId::ASSET_SHADER_SCENE2); +const char* scratch_shader_wgsl = SafeGetAsset(AssetId::ASSET_SHADER_SCRATCH); // Compute shaders const char* gen_noise_compute_wgsl = -- cgit v1.2.3