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-rw-r--r--shaders/rounded_rectangle.glsl15
1 files changed, 15 insertions, 0 deletions
diff --git a/shaders/rounded_rectangle.glsl b/shaders/rounded_rectangle.glsl
new file mode 100644
index 0000000..7da0826
--- /dev/null
+++ b/shaders/rounded_rectangle.glsl
@@ -0,0 +1,15 @@
+uniform float radius;
+uniform vec2 resolution;
+
+float rounded_rect(vec2 coord, vec2 size, float r) {
+ return length(max(abs(coord) - size, 0.0)) - r;
+}
+
+void main() {
+ vec2 uv = gl_TexCoord[0].xy * resolution;
+ vec2 center = resolution * 0.5;
+ vec2 size = resolution * 0.5;
+ vec4 background_color = vec4(0.0, 0.0, 0.0, 0.0);
+ float a = clamp(rounded_rect(uv - center, size - radius, radius), 0.0, 1.0);
+ gl_FragColor = mix(gl_Color, background_color, a);
+} \ No newline at end of file