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        void ofApp::setupAnim() {
    ofEnableSmoothing();
    masker.setup(width, height);
    fadeIn = true;
    fadeOut = false;
    alpha = 255;

    ofDisableArbTex();
    setupImage("tissue.png", &img1, &tex1, &offset1);
    setupImage("road.png", &img2, &tex2, &offset2);

    plane.set(width, height);
    plane.setPosition(width * 0.5, height * 0.5, 0);
    plane.setResolution(2, 2);
}

void ofApp::setupImage(string file, ofImage *img, ofTexture *tex, float *offset) {
    img->loadImage(file);
    *tex = img->getTextureReference();
    tex->setTextureWrap(GL_MIRRORED_REPEAT, GL_MIRRORED_REPEAT);
    *offset = ofRandom(1);
}

void ofApp::updateAnim(){
    masker.beginBackground();
    ofBackground(0, 0, 0, 255);
    ofSetColor(ofColor::red);
    tx0 = -0.5;
    ty0 = -ofGetFrameNum() * 0.003 + offset1;
    tx1 = tx0 + 1;
    ty1 = ty0 + 0.5;
    drawLayer(&tex2);
    masker.endBackground();
    
    masker.beginMask();
    ofEnableAlphaBlending();
    ofBackground(0, 0, 0, 255);
    ofSetColor(ofColor::white);
    tx0 = -0.35;
    ty0 = ofGetFrameNum() * 0.01 + offset1;
    tx1 = tx0 + 0.7;
    ty1 = ty0 + 0.25;
    drawLayer(&tex1);
    
    ty0 = -ofGetFrameNum() * 0.02 + offset1;
    ty1 = ty0 + 0.25;
    drawLayer(&tex1);
    
    ty0 = ofGetFrameNum() * 0.01 + offset2;
    ty1 = ty0 + 0.25;
    drawLayer(&tex1);
    
    ty0 = -ofGetFrameNum() * 0.02 + offset2;
    ty1 = ty0 + 0.25;
    drawLayer(&tex1);
    
    ofRect(0, 0, 70, height);
    ofRect(width - 70, 0, 70, height);
    ofDisableAlphaBlending();
    masker.endMask();
    
    masker.beginForeground();
    ofBackground(0, 0, 0, 255);
    ofSetColor(ofColor::white);
    tx0 = -0.5;
    ty0 = -ofGetFrameNum() * 0.0012 + offset2;
    tx1 = tx0 + 1;
    ty1 = ty0 + 0.5;
    drawLayer(&tex2);
    masker.endForeground();
}