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Noisy sphere.
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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) {}; ofEasyCam cam; ofMesh mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofEnableDepthTest(); this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->mesh.clear(); auto radius = 250; for (int i = 0; i < 1500; i++) { auto phi_deg = ofRandom(360); auto theta_deg = (int)(ofRandom(180) + ofGetFrameNum() * 1) % 180; auto vertex = glm::vec3( radius * sin(theta_deg * DEG_TO_RAD) * cos(phi_deg * DEG_TO_RAD), radius * sin(theta_deg * DEG_TO_RAD) * sin(phi_deg * DEG_TO_RAD), radius * cos(theta_deg * DEG_TO_RAD) ); this->mesh.addVertex(vertex); this->mesh.addColor(ofColor(255, 0)); } for (int i = 0; i < this->mesh.getNumVertices(); i++) { for (int k = i + 1; k < this->mesh.getNumVertices(); k++) { auto distance = glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k)); if (distance < 35) { this->mesh.addIndex(i); this->mesh.addIndex(k); auto alpha = ofMap(distance, 0, 35, 255, 0); if (alpha > this->mesh.getColor(i).a) { this->mesh.setColor(i, ofColor(255, alpha)); } if (alpha > this->mesh.getColor(k).a) { this->mesh.setColor(k, ofColor(255, alpha)); } } } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(270); ofRotateZ(ofGetFrameNum() * 0.36); this->mesh.drawWireframe(); for (int i = 0; i < this->mesh.getNumVertices(); i++) { ofSetColor(this->mesh.getColor(i)); ofDrawSphere(this->mesh.getVertex(i), 2); } this->cam.end(); /* int start = 250; 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()); } |