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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#version 120
uniform sampler2D leavingSlideTexture;
uniform sampler2D enteringSlideTexture;
uniform sampler2D permTexture;
uniform float time;
varying vec2 v_texturePosition;
float snoise(vec2 P) {
return texture2D(permTexture, P).r;
}
void main() {
float sn = snoise(10.0*v_texturePosition);
if( sn < time)
gl_FragColor = texture2D(enteringSlideTexture, v_texturePosition);
else
gl_FragColor = texture2D(leavingSlideTexture, v_texturePosition);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */