From 7790472dabfa0ecd06f3408d847860ec6072866e Mon Sep 17 00:00:00 2001 From: skal Date: Mon, 9 Feb 2026 18:51:54 +0100 Subject: feat: Implement workspace system (Task #77) Self-contained workspaces for parallel demo development. Structure: - workspaces/main,test - Demo-specific resources - assets/common - Shared resources - workspace.cfg - Configuration per workspace CMake integration: - DEMO_WORKSPACE option (defaults to main) - cmake/ParseWorkspace.cmake - Config parser - Workspace-relative asset/timeline/music paths Migration: - Main demo: demo.seq to workspaces/main/timeline.seq - Test demo: test_demo.seq to workspaces/test/timeline.seq - Common shaders: assets/common/shaders - Workspace shaders: workspaces/*/shaders Build: cmake -B build -DDEMO_WORKSPACE=main cmake -B build_test -DDEMO_WORKSPACE=test All tests passing (36/36). handoff(Claude): Task #77 workspace system complete. Both main and test workspaces build and pass all tests. Co-Authored-By: Claude Sonnet 4.5 --- assets/common/shaders/compute/gen_blend.wgsl | 29 ++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 assets/common/shaders/compute/gen_blend.wgsl (limited to 'assets/common/shaders/compute/gen_blend.wgsl') diff --git a/assets/common/shaders/compute/gen_blend.wgsl b/assets/common/shaders/compute/gen_blend.wgsl new file mode 100644 index 0000000..9fc9e1e --- /dev/null +++ b/assets/common/shaders/compute/gen_blend.wgsl @@ -0,0 +1,29 @@ +// This file is part of the 64k demo project. +// GPU composite shader: Blend two textures. + +struct BlendParams { + width: u32, + height: u32, + blend_factor: f32, + _pad0: f32, +} + +@group(0) @binding(0) var output_tex: texture_storage_2d; +@group(0) @binding(1) var params: BlendParams; +@group(0) @binding(2) var input_a: texture_2d; +@group(0) @binding(3) var input_b: texture_2d; +@group(0) @binding(4) var tex_sampler: sampler; + +@compute @workgroup_size(8, 8, 1) +fn main(@builtin(global_invocation_id) id: vec3) { + if (id.x >= params.width || id.y >= params.height) { return; } + + let uv = vec2(f32(id.x) / f32(params.width), + f32(id.y) / f32(params.height)); + + let color_a = textureSampleLevel(input_a, tex_sampler, uv, 0.0); + let color_b = textureSampleLevel(input_b, tex_sampler, uv, 0.0); + let blended = mix(color_a, color_b, params.blend_factor); + + textureStore(output_tex, id.xy, blended); +} -- cgit v1.2.3