1 files changed, 35 insertions, 0 deletions
diff --git a/workspaces/test/shaders/circle_mask_compute.wgsl b/workspaces/test/shaders/circle_mask_compute.wgsl
new file mode 100644
index 0000000..484d3dd
--- /dev/null
+++ b/workspaces/test/shaders/circle_mask_compute.wgsl
@@ -0,0 +1,35 @@
+// Circle mask compute shader
+// Generates a circular mask (1.0 inside, 0.0 outside)
+
+#include "common_uniforms"
+struct CircleMaskParams {
+  radius: f32,
+  _pad0: f32,
+  _pad1: f32,
+  _pad2: f32,
+};
+
+@group(0) @binding(0) var<uniform> uniforms: CommonUniforms;
+@group(0) @binding(1) var<uniform> params: CircleMaskParams;
+
+struct VSOutput {
+  @builtin(position) position: vec4<f32>,
+};
+
+@vertex fn vs_main(@builtin(vertex_index) i: u32) -> VSOutput {
+  var pos = array<vec2<f32>, 3>(
+    vec2<f32>(-1, -1), vec2<f32>(3, -1), vec2<f32>(-1, 3));
+  return VSOutput(vec4<f32>(pos[i], 0.0, 1.0));
+}
+
+@fragment fn fs_main(@builtin(position) p: vec4<f32>) -> @location(0) vec4<f32> {
+  let uv = p.xy / uniforms.resolution;
+  let center = vec2<f32>(0.5, 0.5);
+  let aspect_corrected_uv = (uv - center) * vec2<f32>(uniforms.aspect_ratio, 1.0);
+  let dist = length(aspect_corrected_uv);
+
+  let edge_width = 0.01;
+  let mask = smoothstep(params.radius + edge_width, params.radius - edge_width, dist);
+
+  return vec4<f32>(mask, mask, mask, 1.0);
+}