works

1 files changed, 5 insertions, 2 deletions

diff --git a/vgcodec/src/paint.wgsl b/vgcodec/src/paint.wgsl
index f23e903..7006310 100644
--- a/vgcodec/src/paint.wgsl
+++ b/vgcodec/src/paint.wgsl
@@ -1,7 +1,8 @@
 struct Uniforms {
     x: f32,
     y: f32,
-    radius: f32,
+    rx: f32,
+    ry: f32,
     r: f32,
     g: f32,
     b: f32
@@ -13,7 +14,9 @@ struct Uniforms {
 @compute @workgroup_size(1)
 fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
     let coords = global_id.xy;
-    if distance(vec2<f32>(coords), vec2(uniforms.x, uniforms.y)) < uniforms.radius {
+    let kc = vec2<f32>(coords) - vec2(uniforms.x, uniforms.y);
+    let d = length(kc / vec2(uniforms.rx, uniforms.ry));
+    if d < 1.0 {
         textureStore(tex, vec2<i32>(coords), vec4<f32>(vec3<f32>(uniforms.r, uniforms.g, uniforms.b), 1.0));
     }
 }