1 files changed, 18 insertions, 0 deletions
diff --git a/tests/manual/scenegraph_lancelot/data/shared/shaders/cmyk_rhi.frag b/tests/manual/scenegraph_lancelot/data/shared/shaders/cmyk_rhi.frag
new file mode 100644
index 0000000000..5d528e1d7a
--- /dev/null
+++ b/tests/manual/scenegraph_lancelot/data/shared/shaders/cmyk_rhi.frag
@@ -0,0 +1,18 @@
+#version 440
+
+layout(location = 0) in vec2 qt_TexCoord0;
+layout(location = 0) out vec4 fragColor;
+
+layout(binding = 1) uniform sampler2D cyan;
+layout(binding = 2) uniform sampler2D magenta;
+layout(binding = 3) uniform sampler2D yellow;
+layout(binding = 4) uniform sampler2D black;
+
+void main() {
+    vec2 t = qt_TexCoord0 * 3. - 1.;
+    lowp float c = texture(cyan, t + vec2(.05, .09)).a;
+    lowp float m = texture(magenta, t + vec2(.04, -.10)).a;
+    lowp float y = texture(yellow, t + vec2(-.10, .01)).a;
+    lowp float k = texture(black, t).a;
+    fragColor = 1. - vec4(c + k, m + k, y + k, 0.);
+}