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発散球体。
Diverging 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 windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; ofEasyCam cam; vector<glm::vec3> locations; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofSetLineWidth(3); ofEnableDepthTest(); auto ico_sphere = ofIcoSpherePrimitive(150, 2); auto triangles = ico_sphere.getMesh().getUniqueFaces(); for (auto& triangle : triangles) { auto avg = glm::vec3(triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3; this->locations.push_back(avg); } } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 0.5); vector<glm::vec3> tmp_locations; for (auto& location : this->locations) { auto radius = (((int)ofMap(ofNoise(location.x * 0.008, location.y * 0.008, location.z * 0.008, ofGetFrameNum() * 0.005), 0, 1, 0, 150) + ofGetFrameNum()) % 300) + 50; if (radius < 200) { radius = 200; } auto tmp_location = glm::normalize(location) * radius; tmp_locations.push_back(tmp_location); } for (auto& location : tmp_locations) { ofDrawSphere(location, 5); for (auto& other : tmp_locations) { if (location == other) { continue; } float distance = glm::distance(location, other); if (distance < 45){ ofDrawLine(location, other); } } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |