1 files changed, 14 insertions, 0 deletions
diff --git a/tests/manual/scenegraph_lancelot/data/shared/shaders/cmyk.frag b/tests/manual/scenegraph_lancelot/data/shared/shaders/cmyk.frag
new file mode 100644
index 0000000000..d63a0fa6ee
--- /dev/null
+++ b/tests/manual/scenegraph_lancelot/data/shared/shaders/cmyk.frag
@@ -0,0 +1,14 @@
+uniform lowp sampler2D cyan;
+uniform lowp sampler2D magenta;
+uniform lowp sampler2D yellow;
+uniform lowp sampler2D black;
+varying highp vec2 qt_TexCoord0;
+uniform lowp float qt_Opacity;
+void main() {
+    highp vec2 t = qt_TexCoord0 * 3. - 1.;
+    lowp float c = texture2D(cyan, t + vec2(.05, .09)).a;
+    lowp float m = texture2D(magenta, t + vec2(.04, -.10)).a;
+    lowp float y = texture2D(yellow, t + vec2(-.10, .01)).a;
+    lowp float k = texture2D(black, t).a;
+    gl_FragColor = 1. - vec4(c + k, m + k, y + k, 0.);
+}