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        void ofApp::setupAnim() {
    numImages = 8;
    highestIndex = numImages - 1;
    image.setup("surface.png");
    for(int i = 0; i < numImages; i++) {
        image.setTextureOffsetX(ofRandom(500));
        image.setTextureScale(ofMap(i, 0, highestIndex, 2, 0.35));
        image.setPlaneHeight(ofMap(i, 0, highestIndex, 500, 200));
        image.setPlanePosition(0, ofMap(i, 0, highestIndex, -50, 300));
        images.push_back(image);
        imgColors.push_back(ofColor(ofMap(i, 0, highestIndex, 100, 255), ofMap(i, 0, highestIndex, 100, 0), 0, ofMap(i, 0, highestIndex, 0, 255)));
    }

    system.setup();
    shape.setupGradientSquare(70, height * 2);
    shape.positionX(-halfWidth - 35);
    shape.positionY(40);
    shape.setColor(ofColor(ofColor::white, 96));
    system.add(shape);
}

void ofApp::updateAnim(){
    for(int i = 0; i < numImages; i++) {
        images.at(i).incrementTextureOffsetX(i % 2 == 0 ? 0.03 : -0.03);
    }
}

void ofApp::drawAnim() {
    ofBackground(ofColor::black);
    
    ofEnableAlphaBlending();
    for(int i = 0; i < numImages; i++) {
        ofSetColor(imgColors.at(i));
        rotateScreen(90);
        images.at(i).draw();
        rotateScreen(180);
        images.at(i).draw();
        rotateScreen(90);
    }
    
    rotateScreen(180);
    system.draw();
    rotateScreen(180);
    system.draw();
    
    ofDisableAlphaBlending();
    
    if(ofGetFrameNum() == 67) {
        renderGif();
    }
}

void ofApp::rotateScreen(float degrees) {
    ofTranslate(halfWidth, halfHeight);
    ofRotateZ(degrees);
    ofTranslate(-halfWidth, -halfHeight);
}