Chore: Upgrade nucular GUI dependency

1 files changed, 23 insertions, 0 deletions

diff --git a/vendor/gioui.org/shader/gio/zcover.frag.0.glsl100es b/vendor/gioui.org/shader/gio/zcover.frag.0.glsl100es
new file mode 100644
index 0000000..2399901
--- /dev/null
+++ b/vendor/gioui.org/shader/gio/zcover.frag.0.glsl100es
@@ -0,0 +1,23 @@
+#version 100
+precision mediump float;
+precision highp int;
+
+struct Color
+{
+    vec4 color;
+};
+
+uniform Color _color;
+
+uniform mediump sampler2D cover;
+
+varying highp vec2 vCoverUV;
+varying highp vec2 vUV;
+
+void main()
+{
+    gl_FragData[0] = _color.color;
+    float c = min(abs(texture2D(cover, vCoverUV).x), 1.0);
+    gl_FragData[0] *= c;
+}
+