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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(60); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetLineWidth(3); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { auto span = 60; ofSetColor(255); for (int x = span; x < ofGetWidth(); x += span) { for (int y = 0; y < ofGetHeight(); y += 3) { auto noise_value = ofNoise(x * 0.05, y * 0.008 - ofGetFrameNum() * 0.01); if (noise_value > 0.45) { auto radius = ofMap(noise_value, 0.45, 1, 0.1, span * 0.5); ofNoFill(); ofDrawCircle(x, y, radius); } } } ofSetColor(0); for (int x = span; x < ofGetWidth(); x += span) { for (int y = 0; y < ofGetHeight(); y += 18) { auto noise_value = ofNoise(x * 0.05, y * 0.008 - ofGetFrameNum() * 0.01); if (noise_value > 0.45) { auto radius = ofMap(noise_value, 0.45, 1, 0.1, span * 0.5); ofFill(); ofDrawCircle(x, y, radius); } } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |