1 files changed, 16 insertions, 0 deletions
diff --git a/shaders/cairo-gl/5.frag b/shaders/cairo-gl/5.frag
new file mode 100644
index 0000000..b233478
--- /dev/null
+++ b/shaders/cairo-gl/5.frag
@@ -0,0 +1,16 @@
+uniform sampler2D source_sampler;
+varying vec2 source_texcoords;
+vec4 get_source()
+{
+    return texture2D(source_sampler, source_texcoords);
+}
+varying float mask_coverage;
+vec4 get_mask()
+{
+    return vec4(0, 0, 0, mask_coverage);
+}
+void main()
+{
+    gl_FragColor = get_source() * get_mask().a;
+}
+