[ Video ]
[ About ]
ねじれトーラス。
Twisted torus.
[ Source ]
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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; glm::vec3 make_point(float R, float r, float u, float v); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofSetLineWidth(3); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); int u = ofGetFrameNum(); for (int v = 0; v < 360; v += 3) { vector<glm::vec3> vertices; vertices.push_back(this->make_point(300, 80, u, v - 1)); vertices.push_back(this->make_point(300, 80, u, v + 1)); vertices.push_back(this->make_point(300, 80, u + 180, v + 1)); vertices.push_back(this->make_point(300, 80, u + 180, v - 1)); ofFill(); ofSetColor(39); ofBeginShape(); ofVertices(vertices); ofEndShape(true); ofNoFill(); ofSetColor(239); ofBeginShape(); ofVertices(vertices); ofEndShape(true); u += 3; } this->cam.end(); } //-------------------------------------------------------------- glm::vec3 ofApp::make_point(float R, float r, float u, float v) { // 数学デッサン教室 描いて楽しむ数学たち P.31 u *= DEG_TO_RAD; v *= DEG_TO_RAD; auto x = (R + r * cos(u)) * cos(v); auto y = (R + r * cos(u)) * sin(v); auto z = r * sin(u); return glm::vec3(x, y, z); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/openframeworks20190907