1 files changed, 15 insertions, 0 deletions
diff --git a/sway/desktop/shaders/quad_round.frag b/sway/desktop/shaders/quad_round.frag
new file mode 100644
index 00000000..e347284b
--- /dev/null
+++ b/sway/desktop/shaders/quad_round.frag
@@ -0,0 +1,15 @@
+precision mediump float;
+varying vec4 v_color;
+varying vec2 v_texcoord;
+
+uniform vec2 size;
+uniform vec2 position;
+uniform float radius;
+
+void main() {
+    vec2 half_size = size / 2.0;
+    vec2 q = abs(gl_FragCoord.xy - position - half_size) - half_size + radius;
+    float distance = min(max(q.x,q.y),0.0) + length(max(q,0.0)) - radius;
+    float smoothedAlpha = 1.0 - smoothstep(-1.0, 1.0, distance);
+    gl_FragColor = mix(vec4(0), v_color, smoothedAlpha);
+}