File: wobble.frag

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qtdeclarative-opensource-src 5.15.8%2Bdfsg-3
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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;
}