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#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) {}; ofEasyCam cam; ofMesh mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofSetLineWidth(2); ofEnableDepthTest(); this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->mesh.clear(); ofColor color; auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000)); for (int i = 0; i < 12; i++) { for (int x = -300; x <= 300; x += 5) { auto base_y = ofMap(ofNoise(noise_seed.x, x * 0.001 + (ofGetFrameNum() + i * 10000) * 0.002), 0, 1, -300, 300); auto base_z = ofMap(ofNoise(noise_seed.y, x * 0.001 + (ofGetFrameNum() + i * 10000) * 0.002), 0, 1, -300, 300); auto y = base_y + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -30, 30); auto z = base_z + ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -30, 30); this->mesh.addVertex(glm::vec3(x, y, z)); color.setHsb(ofMap(i , 0, 12, 0, 255), 255, 255); this->mesh.addColor(color); } } for (int i = 0; i < this->mesh.getNumVertices(); i++) { auto min_distance = 30; for (int k = i + 1; k < this->mesh.getNumVertices(); k++) { float distance = glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k)); if (distance < 30) { this->mesh.addIndex(i); this->mesh.addIndex(k); if (distance < min_distance) { min_distance = distance; } } } this->mesh.setColor(i, ofColor(this->mesh.getColor(i), ofMap(min_distance, 0, 30, 255, 64))); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum()); this->mesh.drawWireframe(); for (int i = 0; i < this->mesh.getNumVertices(); i++) { ofSetColor(this->mesh.getColor(i)); ofDrawSphere(this->mesh.getVertex(i), 4); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |