1 files changed, 12 insertions, 0 deletions
diff --git a/tests/manual/scenegraph_lancelot/data/shared/shaders/desaturate_rhi.frag b/tests/manual/scenegraph_lancelot/data/shared/shaders/desaturate_rhi.frag
new file mode 100644
index 0000000000..a4299c6d68
--- /dev/null
+++ b/tests/manual/scenegraph_lancelot/data/shared/shaders/desaturate_rhi.frag
@@ -0,0 +1,12 @@
+#version 440
+
+layout(location = 0) in vec2 qt_TexCoord0;
+layout(location = 0) out vec4 fragColor;
+layout(binding = 1) uniform sampler2D source;
+
+void main() {
+    lowp vec4 c = texture(source, qt_TexCoord0);
+    lowp float level = c.r * 0.3 + c.g * 0.59 + c.b * 0.11;
+
+    fragColor = vec4(level, level, level, c.a);
+}