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#pragma once #include "ofMain.h" class ofApp : public ofBaseApp { public: void setup(); void update(); void draw(); void keyPressed(int key) {}; void keyReleased(int key) {}; void mouseMoved(int x, int y) {}; void mouseDragged(int x, int y, int button) {}; void mousePressed(int x, int y, int button) {}; void mouseReleased(int x, int y, int button) {}; void windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); ofColor color; for (int i = 0; i < 200; i++) { auto speed = ofRandom(1, 3); auto size = ofRandom(3, 15); auto noise_seed = ofRandom(1000); color.setHsb(ofRandom(255), 120, 255); for (int k = 0; k < 15; k++) { auto radius = ofMap(ofNoise(noise_seed, (ofGetFrameNum() + k) * 0.008), 0, 1, 180, 320); auto deg = noise_seed + (ofGetFrameNum() + k) * speed; auto next_radius = ofMap(ofNoise(noise_seed, (ofGetFrameNum() + k + 1) * 0.008), 0, 1, 180, 320); auto next_deg = noise_seed + (ofGetFrameNum() + k + 1) * speed; auto x = radius * cos(0.5 * deg * DEG_TO_RAD); auto y = radius * sin(deg * DEG_TO_RAD); auto next_x = next_radius * cos(0.5 * next_deg * DEG_TO_RAD); auto next_y = next_radius * sin(next_deg * DEG_TO_RAD); ofSetLineWidth(ofMap(k, 0, 15, 0.1, 2)); ofSetColor(ofColor(color, ofMap(k, 0, 15, 0, 255))); ofDrawLine(x, y, next_x, next_y); } } /* int start = 300; if (ofGetFrameNum() > start) { ostringstream os; os << setw(4) << setfill('0') << ofGetFrameNum() - start; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/cap/img_" + os.str() + ".jpg"); if (ofGetFrameNum() - start >= 25 * 20) { std::exit(1); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |