Initial commit: ink-notes (latency-optimized Linux inking app in Rust)

src/shader.wgsl

@@ -0,0 +1,34 @@
+// WGSL Shader für 2D-Vektor-Meshes der Inking-App
+// Unterstützt echte Multi-Color-Vertizes und DIN-A4-Seitenkoordinatentransformation
+
+struct VertexInput {
+    @location(0) position: vec2<f32>,
+    @location(1) color: vec4<f32>,
+};
+
+struct VertexOutput {
+    @builtin(position) clip_position: vec4<f32>,
+    @location(0) color: vec4<f32>,
+};
+
+struct CameraUniforms {
+    transform_scale: vec2<f32>,
+    transform_offset: vec2<f32>,
+};
+
+@group(0) @binding(0)
+var<uniform> camera: CameraUniforms;
+
+@vertex
+fn vs_main(in: VertexInput) -> VertexOutput {
+    var out: VertexOutput;
+    let ndc = in.position * camera.transform_scale + camera.transform_offset;
+    out.clip_position = vec4<f32>(ndc, 0.0, 1.0);
+    out.color = in.color;
+    return out;
+}
+
+@fragment
+fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
+    return in.color;
+}