From 9ee410594a52cbc699b13de2bde4860d70c959a3 Mon Sep 17 00:00:00 2001 From: skal Date: Sat, 28 Feb 2026 09:08:57 +0100 Subject: refactor: move common/shaders/ to src/shaders/ Relocates shared WGSL shaders under src/ where all source code lives, eliminating the top-level common/ directory. - Update asset references in workspaces/main/assets.txt and workspaces/test/assets.txt - Update docs: PROJECT_CONTEXT.md, ARCHITECTURE.md, WORKSPACE_SYSTEM.md, SHADER_REUSE_INVESTIGATION.md Co-Authored-By: Claude Sonnet 4.6 --- src/shaders/math/utils.wgsl | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 src/shaders/math/utils.wgsl (limited to 'src/shaders/math/utils.wgsl') diff --git a/src/shaders/math/utils.wgsl b/src/shaders/math/utils.wgsl new file mode 100644 index 0000000..c75cb66 --- /dev/null +++ b/src/shaders/math/utils.wgsl @@ -0,0 +1,14 @@ +// General-purpose math utility functions. + +// Returns a 2x2 rotation matrix. +fn rot(a: f32) -> mat2x2f { + let c = cos(a); + let s = sin(a); + return mat2x2f(c, s, -s, c); +} + +// Fast approximation of tanh. +fn tanh_approx(x: f32) -> f32 { + let x2 = x * x; + return clamp(x * (27.0 + x2) / (27.0 + 9.0 * x2), -1.0, 1.0); +} -- cgit v1.2.3