1 files changed, 14 insertions, 0 deletions
diff --git a/tests/manual/scenegraph_lancelot/data/shared/shaders/edge.frag b/tests/manual/scenegraph_lancelot/data/shared/shaders/edge.frag
new file mode 100644
index 0000000000..8cb616f3e0
--- /dev/null
+++ b/tests/manual/scenegraph_lancelot/data/shared/shaders/edge.frag
@@ -0,0 +1,14 @@
+uniform lowp sampler2D source;
+varying highp vec2 qt_TexCoord0;
+uniform highp vec2 textureSize;
+uniform lowp vec4 color;
+uniform lowp float qt_Opacity;
+void main() {
+    highp vec2 dx = vec2(0.5 / textureSize.x, 0.);
+    highp vec2 dy = vec2(0., 0.5 / textureSize.y);
+    gl_FragColor = color * 0.25
+                 * (texture2D(source, qt_TexCoord0 + dx + dy).a
+                 + texture2D(source, qt_TexCoord0 + dx - dy).a
+                 + texture2D(source, qt_TexCoord0 - dx + dy).a
+                 + texture2D(source, qt_TexCoord0 - dx - dy).a);
+}