1 files changed, 64 insertions, 0 deletions
diff --git a/tests/manual/scenegraph_lancelot/data/shaders/hiddensource/hiddensource_1.qml b/tests/manual/scenegraph_lancelot/data/shaders/hiddensource/hiddensource_1.qml
new file mode 100644
index 0000000000..83469531b1
--- /dev/null
+++ b/tests/manual/scenegraph_lancelot/data/shaders/hiddensource/hiddensource_1.qml
@@ -0,0 +1,64 @@
+import QtQuick 2.0
+
+Item {
+    width: 320
+    height: 480
+
+    Rectangle {
+        id: draggee
+        width: 200
+        height: 80
+        x: 20
+        y: 15
+        gradient: Gradient {
+            GradientStop { position: 0.0; color: "steelBlue" }
+            GradientStop { position: 0.49; color: "white" }
+            GradientStop { position: 0.5; color: "gray" }
+            GradientStop { position: 1.0; color: "darkGray" }
+        }
+        radius: 20
+        border.width: 2
+        border.color: "black"
+        Text {
+            anchors.centerIn: parent
+            font.pixelSize: 40
+            text: "Position 1"
+        }
+    }
+
+    ShaderEffectSource {
+        id: source
+        sourceItem: draggee
+        hideSource: true
+        property real margins: 6
+        sourceRect: Qt.rect(-margins, -margins, sourceItem.width + 2 * margins, sourceItem.height + 2 * margins)
+        smooth: true
+    }
+
+    ShaderEffect{
+        id: effect
+        anchors.fill: source.sourceItem
+        anchors.margins: -source.margins
+        property variant source: source
+        property variant offset: Qt.size(4 / width, 4 / height)
+        property variant delta: Qt.size(0.5 / width, 0.5 / height)
+
+        fragmentShader: "
+            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);
+            }
+            "
+    }
+}
+