1 files changed, 14 insertions, 0 deletions
diff --git a/tests/manual/scenegraph_lancelot/data/shared/shaders/shadow.frag b/tests/manual/scenegraph_lancelot/data/shared/shaders/shadow.frag
new file mode 100644
index 0000000000..0a6cdf3044
--- /dev/null
+++ b/tests/manual/scenegraph_lancelot/data/shared/shaders/shadow.frag
@@ -0,0 +1,14 @@
+uniform lowp sampler2D source;
+uniform highp vec2 offset;
+uniform highp vec2 delta;
+varying highp vec2 qt_TexCoord0;
+uniform lowp float qt_Opacity;
+void main() {
+    highp vec2 delta2 = vec2(delta.x, -delta.y);
+    lowp float shadow = 0.25 * (texture2D(source, qt_TexCoord0 - offset + delta).a
+                      + texture2D(source, qt_TexCoord0 - offset - delta).a
+                      + texture2D(source, qt_TexCoord0 - offset + delta2).a
+                      + texture2D(source, qt_TexCoord0 - offset - delta2).a);
+    lowp vec4 color = texture2D(source, qt_TexCoord0);
+    gl_FragColor = mix(vec4(vec3(0.), 0.5 * shadow), color, color.a);
+}