1 files changed, 16 insertions, 0 deletions
diff --git a/warper/bin/data/shaders/ofxWarp/ControlPoint.frag b/warper/bin/data/shaders/ofxWarp/ControlPoint.frag
new file mode 100644
index 0000000..87ef7a3
--- /dev/null
+++ b/warper/bin/data/shaders/ofxWarp/ControlPoint.frag
@@ -0,0 +1,16 @@
+#version 150
+
+in vec2 vTexCoord;
+in vec4 vColor;
+
+out vec4 fragColor;
+
+void main(void) 
+{
+	vec2 uv = vTexCoord * 2.0 - 1.0;
+	float d = dot(uv, uv);
+	float rim = smoothstep(0.7, 0.8, d);
+	rim += smoothstep(0.3, 0.4, d) - smoothstep(0.5, 0.6, d);
+	rim += smoothstep(0.1, 0.0, d);
+	fragColor = mix(vec4( 0.0, 0.0, 0.0, 0.25), vColor, rim);
+}