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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) {}; ofMesh mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY); } //-------------------------------------------------------------- void ofApp::update() { this->mesh.clear(); float deg_span = 5; ofColor color; for (float deg = 0; deg < 360; deg += deg_span * 3) { color.setHsb(ofMap(deg, 0, 360, 0, 255), 150, 255); for (int radius = 100; radius <= 300; radius += 200) { if (radius == 100) { auto noise_deg = ofMap(ofNoise(ofGetFrameNum() * 0.08), 0, 1, -360, +360); noise_deg = noise_deg > 80 ? deg + 80 : noise_deg < -80 ? deg - 80 : deg + noise_deg; this->mesh.addVertex(glm::vec3(radius * cos((noise_deg + deg_span * 0.5) * DEG_TO_RAD), radius * sin((noise_deg + deg_span * 0.5) * DEG_TO_RAD), 0)); this->mesh.addVertex(glm::vec3(radius * cos((noise_deg - deg_span * 0.5) * DEG_TO_RAD), radius * sin((noise_deg - deg_span * 0.5) * DEG_TO_RAD), 0)); } else { this->mesh.addVertex(glm::vec3(radius * cos((deg + deg_span * 0.5) * DEG_TO_RAD), radius * sin((deg + deg_span * 0.5) * DEG_TO_RAD), 0)); this->mesh.addVertex(glm::vec3(radius * cos((deg - deg_span * 0.5) * DEG_TO_RAD), radius * sin((deg - deg_span * 0.5) * DEG_TO_RAD), 0)); this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 4); this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 4); } this->mesh.addColor(color); this->mesh.addColor(color); } } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); this->mesh.draw(); /* int start = 60; 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()); } |