1 files changed, 15 insertions, 0 deletions
diff --git a/vendor/gioui.org/shader/gio/intersect.frag b/vendor/gioui.org/shader/gio/intersect.frag
new file mode 100644
index 0000000..21a126f
--- /dev/null
+++ b/vendor/gioui.org/shader/gio/intersect.frag
@@ -0,0 +1,15 @@
+#version 310 es
+
+// SPDX-License-Identifier: Unlicense OR MIT
+
+precision mediump float;
+
+layout(location = 0) in highp vec2 vUV;
+
+layout(binding = 0) uniform sampler2D cover;
+
+layout(location = 0) out vec4 fragColor;
+
+void main() {
+  fragColor.r = abs(texture(cover, vUV).r);
+}