From 4be30565fd882fe412d8d40dc65c15f88a479f0f Mon Sep 17 00:00:00 2001
From: Gunnar Sletta <gunnar.sletta@digia.com>
Date: Mon, 29 Apr 2013 07:05:29 +0200
Subject: Another dissolve

Change-Id: I2c05445a84723d742a43bca70a2a8073f9aa47e2
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
---
 .../Graphical Effects/effect_CustomDissolve.qml    | 128 +++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 basicsuite/Graphical Effects/effect_CustomDissolve.qml

(limited to 'basicsuite')

diff --git a/basicsuite/Graphical Effects/effect_CustomDissolve.qml b/basicsuite/Graphical Effects/effect_CustomDissolve.qml
new file mode 100644
index 0000000..ae92f9f
--- /dev/null
+++ b/basicsuite/Graphical Effects/effect_CustomDissolve.qml	
@@ -0,0 +1,128 @@
+import QtQuick 2.0
+
+Item {
+
+
+    width: 700
+    height: 600
+    id: root
+
+    property real inputX: 0.5;
+    property real feedbackX: inputX
+    property string nameX: "Displacement"
+
+    property real inputY: 0.5;
+    property real feedbackY: effect.amplitude
+    property string nameY: "Amplitude"
+
+    Rectangle {
+        id: sourceItem
+        anchors.centerIn: parent
+        width: text.width + 50
+        height: text.height + 20
+        gradient: Gradient {
+            GradientStop { position: 0; color: "steelblue" }
+            GradientStop { position: 1; color: "black" }
+        }
+        border.color: "lightsteelblue"
+        border.width: 2
+
+//?        color: "transparent"
+
+        radius: 10
+
+        layer.enabled: true
+        layer.smooth: true
+        layer.sourceRect: Qt.rect(-1, -1, width + 2, height + 2);
+
+        visible: false
+
+        Text {
+            id: text
+            font.pixelSize: root.height * 0.08
+            anchors.centerIn: parent;
+            text: "Code Less, Create More!"
+            color: "lightsteelblue"
+            style: Text.Raised
+
+        }
+    }
+
+    ShaderEffect {
+
+        id: effect
+
+        anchors.fill: sourceItem;
+
+        property variant source: sourceItem;
+
+        property real t: (1 + tlength) * (1 - root.inputX) - tlength;
+        property real tlength: 1.0
+        property real amplitude: 2.0 * height * root.inputY;
+
+        mesh: "40x4"
+
+        vertexShader:
+            "
+            uniform highp mat4 qt_Matrix;
+            uniform lowp float t;
+            uniform lowp float tlength;
+            uniform highp float amplitude;
+            uniform lowp float qt_Opacity;
+
+            attribute highp vec4 qt_Vertex;
+            attribute highp vec2 qt_MultiTexCoord0;
+
+            varying highp vec2 vTexCoord;
+            varying lowp float vOpacity;
+
+            void main() {
+                vTexCoord = qt_MultiTexCoord0;
+
+                vec4 pos = qt_Vertex;
+
+                lowp float tt = smoothstep(t, t+tlength, qt_MultiTexCoord0.x);
+
+                vOpacity = 1.0 - tt;
+
+                pos.y += (amplitude * (qt_MultiTexCoord0.y * 2.0 - 1.0) * (-2.0 * tt)
+                          + 3.0 * amplitude * (qt_MultiTexCoord0.y * 2.0 - 1.0)
+                          + amplitude * sin(0.0 + tt * 2.14152 * qt_MultiTexCoord0.x)
+                          + amplitude * sin(0.0 + tt * 7.4567)
+                         ) * tt;
+
+                pos.x += amplitude * sin(6.0 + tt * 4.4567) * tt;
+
+                gl_Position = qt_Matrix * pos;
+            }
+            "
+        fragmentShader:
+            "
+            uniform sampler2D source;
+
+            uniform lowp float t;
+            uniform lowp float tlength;
+
+            varying highp vec2 vTexCoord;
+            varying lowp float vOpacity;
+
+            // Noise function from: http://stackoverflow.com/questions/4200224/random-noise-functions-for-glsl
+            float rand(vec2 n) {
+                return fract(sin(dot(n.xy, vec2(12.9898, 78.233))) * 43758.5453);
+            }
+
+            void main() {
+                lowp vec4 tex = texture2D(source, vTexCoord);
+
+                lowp float opacity = 1.0 - smoothstep(0.9, 1.0, vOpacity);
+
+                float particlify = smoothstep(1.0 - vOpacity, 1.0, rand(vTexCoord)) * vOpacity;
+
+                gl_FragColor = tex * mix(vOpacity, particlify, opacity);
+            }
+
+            "
+
+    }
+
+}
-- 
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