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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) {}; float noise_step_x, noise_step_y, noise_step_z; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofSetColor(255); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); if (ofGetFrameNum() % 25 < 20) { if (ofGetFrameNum() % 75 < 25) { this->noise_step_x += ofMap(ofGetFrameNum() % 25, 0, 20, 0.5, 0); } else if (ofGetFrameNum() % 75 < 50) { this->noise_step_y += ofMap(ofGetFrameNum() % 25, 0, 20, 0.5, 0); } else if (ofGetFrameNum() % 75 < 75) { this->noise_step_z += ofMap(ofGetFrameNum() % 25, 0, 20, 0.25, 0); } } } //-------------------------------------------------------------- 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(this->noise_step_z, x * 0.005 + this->noise_step_x, y * 0.005 + this->noise_step_y); if (noise_value > 0.4 && noise_value <= 0.6) { ofDrawCircle(x, y, span * 0.5); } } } /* int start = 150; 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()); } |