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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) {}; ofMesh mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetWindowTitle("openFrameworks"); ofSetFrameRate(30); ofBackground(0); ofSetLineWidth(3.5); this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->mesh.clear(); auto radius = 15; for (int x = -300; x <= 300; x += 60) { for (int y = -300; y <= 300; y += 60) { int deg = ofMap(ofNoise(x * 0.0035, y * 0.0035, ofGetFrameNum() * 0.0005), 0, 1, 0, 720); int deg_param = deg % 90; deg = deg / 90 * 90; if (deg_param > 85) { deg += ofMap(deg_param, 85, 90, 0, 90); } int start_index = this->mesh.getNumVertices(); for (int circle_deg = 0; circle_deg < 360; circle_deg += 2) { this->mesh.addVertex(glm::vec3(x + radius * cos(circle_deg * DEG_TO_RAD), y + radius * sin(circle_deg * DEG_TO_RAD), 0)); if (circle_deg > 0) { this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); } } this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(start_index); this->mesh.addVertex(glm::vec3(x + radius * cos(deg * DEG_TO_RAD), y + radius * sin(deg * DEG_TO_RAD), 0)); this->mesh.addVertex(glm::vec3(x + radius * 2 * cos(deg * DEG_TO_RAD), y + radius * 2 * sin(deg * DEG_TO_RAD), 0)); this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addVertex(glm::vec3(x + radius * cos((deg + 180) * DEG_TO_RAD), y + radius * sin((deg + 180) * DEG_TO_RAD), 0)); this->mesh.addVertex(glm::vec3(x + radius * 2 * cos((deg + 180) * DEG_TO_RAD), y + radius * 2 * sin((deg + 180) * DEG_TO_RAD), 0)); this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); } } ofColor color; for (int i = 0; i < this->mesh.getNumVertices(); i++) { color.setHsb(ofMap(ofNoise(this->mesh.getVertex(i) * 0.0035), 0, 1, 180, 255), 200, 255); this->mesh.addColor(color); } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); this->mesh.drawWireframe(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |