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-rw-r--r--examples/quick/shadereffects/content/shaders/wobble.frag13
1 files changed, 13 insertions, 0 deletions
diff --git a/examples/quick/shadereffects/content/shaders/wobble.frag b/examples/quick/shadereffects/content/shaders/wobble.frag
new file mode 100644
index 0000000000..fedbb68254
--- /dev/null
+++ b/examples/quick/shadereffects/content/shaders/wobble.frag
@@ -0,0 +1,13 @@
+uniform lowp float qt_Opacity;
+uniform highp float amplitude;
+uniform highp float frequency;
+uniform highp float time;
+uniform sampler2D source;
+
+varying highp vec2 qt_TexCoord0;
+
+void main()
+{
+ highp vec2 p = sin(time + frequency * qt_TexCoord0);
+ gl_FragColor = texture2D(source, qt_TexCoord0 + amplitude * vec2(p.y, -p.x)) * qt_Opacity;
+}