From 2e34965e5e48175c5ee6016af1a858f7f3f02c1d Mon Sep 17 00:00:00 2001 From: skal Date: Wed, 4 Feb 2026 11:56:03 +0100 Subject: feat(gpu): Implement recursive WGSL composition and modularize shaders (Task #50) - Updated ShaderComposer to support recursive #include "snippet_name" with cycle detection. - Extracted granular WGSL snippets: math/sdf_shapes, math/sdf_utils, render/shadows, render/scene_query, render/lighting_utils. - Refactored Renderer3D to use #include in shaders, simplifying C++ dependency lists. - Fixed WGPUShaderSourceWGSL usage on macOS to correctly handle composed shader strings. - Added comprehensive unit tests for recursive composition in test_shader_composer. - Verified system stability with test_3d_render and full test suite. - Marked Task #50 as recurrent for future code hygiene. --- assets/final/shaders/render/shadows.wgsl | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 assets/final/shaders/render/shadows.wgsl (limited to 'assets/final/shaders/render/shadows.wgsl') diff --git a/assets/final/shaders/render/shadows.wgsl b/assets/final/shaders/render/shadows.wgsl new file mode 100644 index 0000000..7cba089 --- /dev/null +++ b/assets/final/shaders/render/shadows.wgsl @@ -0,0 +1,13 @@ +fn calc_shadow(ro: vec3, rd: vec3, tmin: f32, tmax: f32, skip_idx: u32) -> f32 { + var res = 1.0; + var t = tmin; + if (t < 0.05) { t = 0.05; } + for (var i = 0; i < 32; i = i + 1) { + let h = map_scene(ro + rd * t, skip_idx); + if (h < 0.001) { return 0.0; } + res = min(res, 16.0 * h / t); + t = t + clamp(h, 0.02, 0.4); + if (t > tmax) { break; } + } + return clamp(res, 0.0, 1.0); +} -- cgit v1.2.3