From a3583f4c704bb14e02f49cade6996e215d0ee6b4 Mon Sep 17 00:00:00 2001 From: skal Date: Mon, 16 Feb 2026 16:16:13 +0100 Subject: feat: Add FlashEffect for audio/visual sync testing - FlashEffect: Beat-synchronized white flash using ShaderComposer - Loads shader from assets (flash.wgsl) with sequence_uniforms include - Uses pow(1.0 - beat_phase, 4.0) for sharp flash at beat start - Updated test_demo.seq to use FlashEffect (was HeptagonEffect) - Added FlashEffect to test suite (test_demo_effects.cc) - Made cnn_test conditional on main workspace (fixes build error) - Flash intensity: 1.0 at beat start, fades to 0.0 by beat end Co-Authored-By: Claude Sonnet 4.5 --- workspaces/test/assets.txt | 1 + workspaces/test/shaders/flash.wgsl | 27 +++++++++++++++++++++++++++ workspaces/test/timeline.seq | 6 +++--- 3 files changed, 31 insertions(+), 3 deletions(-) create mode 100644 workspaces/test/shaders/flash.wgsl (limited to 'workspaces') diff --git a/workspaces/test/assets.txt b/workspaces/test/assets.txt index 0f065d3..68d0ab3 100644 --- a/workspaces/test/assets.txt +++ b/workspaces/test/assets.txt @@ -74,6 +74,7 @@ SHADER_POSTPROCESS_INLINE, NONE, ../../common/shaders/postprocess_inline.wgsl, " SHADER_PASSTHROUGH_V2, NONE, ../../common/shaders/passthrough.wgsl, "Passthrough Shader" SHADER_GAUSSIAN_BLUR_V2, NONE, ../../common/shaders/gaussian_blur.wgsl, "Gaussian Blur Shader" SHADER_HEPTAGON_V2, NONE, ../../common/shaders/heptagon.wgsl, "Heptagon Shader" +SHADER_FLASH, NONE, shaders/flash.wgsl, "Flash Shader" # --- Test Assets (for test_assets.cc) --- TEST_ASSET_1, NONE, test_assets/test_asset_1.txt, "Test static asset" diff --git a/workspaces/test/shaders/flash.wgsl b/workspaces/test/shaders/flash.wgsl new file mode 100644 index 0000000..8f8c64c --- /dev/null +++ b/workspaces/test/shaders/flash.wgsl @@ -0,0 +1,27 @@ +// Flash shader for visual sync testing +// Pulses white on beat +#include "sequence_uniforms" + +@group(0) @binding(2) var uniforms: UniformsSequenceParams; + +struct VertexOutput { + @builtin(position) position: vec4, + @location(0) uv: vec2, +}; + +@vertex fn vs_main(@builtin(vertex_index) vid: u32) -> VertexOutput { + var out: VertexOutput; + let x = f32((vid & 1u) << 1u); + let y = f32((vid & 2u)); + out.position = vec4(x * 2.0 - 1.0, 1.0 - y * 2.0, 0.0, 1.0); + out.uv = vec2(x, y); + return out; +} + +@fragment fn fs_main(in: VertexOutput) -> @location(0) vec4 { + // Strong flash on beat, fades quickly + let intensity = pow(1.0 - uniforms.beat_phase, 4.0); + // Add audio intensity for extra punch + let final_intensity = intensity * (1.0 + uniforms.audio_intensity * 0.5); + return vec4(final_intensity, final_intensity, final_intensity, 1.0); +} diff --git a/workspaces/test/timeline.seq b/workspaces/test/timeline.seq index 3cbfb93..8907014 100644 --- a/workspaces/test/timeline.seq +++ b/workspaces/test/timeline.seq @@ -2,7 +2,7 @@ # Minimal timeline for audio/visual sync testing # BPM 120 (set in test_demo.track) -SEQUENCE 0.0s 0 "Main Loop" -EFFECT + FlashEffect 0.0s 16.0s +SEQUENCE 0.0 0 "MainLoop" +EFFECT + FlashEffect source -> sink 0.0 16.0 -END_DEMO 32b +END_DEMO 32.0 -- cgit v1.2.3