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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 mouseEntered(int x, int y) {}; void mouseExited(int x, int y) {}; 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); int span = 5; for (int x = -400; x <= 400; x += span) { for (int y = -400; y <= 400; y += span) { auto noise_value = ofNoise(x * 0.0025, y * 0.0025, ofGetFrameNum() * 0.01); auto next_noise_value = ofNoise(x * 0.0025, y * 0.0025, (ofGetFrameNum() + 1) * 0.01); auto noise_param = 0.f; if (noise_value > 0.4 && noise_value <= 0.5) { noise_param = ofMap(noise_value, 0.4, 0.5, 0, 0.8); } else if (noise_value > 0.5 && noise_value < 0.6) { noise_param = ofMap(noise_value, 0.5, 0.6, 0.8, 0); } auto next_noise_param = 0.f; if (next_noise_value > 0.4 && next_noise_value <= 0.5) { next_noise_param = ofMap(next_noise_value, 0.4, 0.5, 0, 0.8); } else if (next_noise_value > 0.5 && next_noise_value < 0.6) { next_noise_param = ofMap(next_noise_value, 0.5, 0.6, 0.8, 0); } auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000)); auto param_x = ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.05), 0, 1, span * -3, span * 3) * noise_param; auto param_y = ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.05), 0, 1, span * -3, span * 3) * noise_param; auto next_param_x = ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.05), 0, 1, span * -3, span * 3) * next_noise_param; auto next_param_y = ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.05), 0, 1, span * -3, span * 3) * next_noise_param; ofColor color; color.setHsb(ofRandom(255), 200, 255, 200); if (noise_param > 0) { ofSetColor(color); ofDrawCircle(x + param_x, y + param_y, span * 0.4); } } } /* int start = 500; 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()); } |