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球体上を移動するパーティクル。近づくと線が発生します
Particle on sphere. When approaching, a line is generated
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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) {}; ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofSetColor(239); ofSetLineWidth(2); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 0.75); vector<glm::vec3> locations; for (int i = 0; i < 650; i++) { glm::vec3 random_point(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -1, 1), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -1, 1), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.001), 0, 1, -1, 1)); int len = 50; if (i > 80) { len = 140; } if (i > 300) { len = 300; } random_point = glm::normalize(random_point) * len; locations.push_back(random_point); } for (int i = 0; i < locations.size(); i++) { ofDrawSphere(locations[i], 3); for (int j = i + 1; j < locations.size(); j++) { float length = glm::distance(locations[i], locations[j]); if (length < 30) { ofDrawLine(locations[i], locations[j]); } } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |