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トーラス・トライン。
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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) {}; glm::vec3 make_point(float R, float r, float u, float v); ofEasyCam cam; ofMesh face; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(39); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face.clear(); float phi_deg_step = 6; float theta_deg_step = 6; ofColor face_color; auto noise_seed_1 = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); auto noise_seed_2 = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); for (int i = 0; i < 50; i++) { float R = ofMap(i, 0, 50, 2, 25); float r = R * 0.25; face_color.setHsb(ofRandom(255), 180, 255); auto location = glm::vec3( ofMap(ofNoise(noise_seed_1.x, i * 0.04 + ofGetFrameNum() * 0.005), 0, 1, -300, 300), ofMap(ofNoise(noise_seed_1.y, i * 0.04 + ofGetFrameNum() * 0.005), 0, 1, -300, 300), ofMap(ofNoise(noise_seed_1.z, i * 0.04 + ofGetFrameNum() * 0.005), 0, 1, -300, 300) ); for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) { for (float theta_deg = 0; theta_deg < 360; theta_deg += theta_deg_step) { auto index = this->face.getNumVertices(); vector<glm::vec3> vertices; vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5))); vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg - phi_deg_step * 0.5))); vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg - theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5))); vertices.push_back(glm::vec3(this->make_point(R, r, theta_deg + theta_deg_step * 0.5, phi_deg + phi_deg_step * 0.5))); for (auto& v : vertices) { auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.001, noise_seed_2.x + i + 0.005 + ofGetFrameNum() * 0.01)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(1, 0, 0)); auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.001, noise_seed_2.y + i + 0.005 + ofGetFrameNum() * 0.01)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0)); auto rotation_z = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec4(v * 0.001, noise_seed_2.z + i + 0.005 + ofGetFrameNum() * 0.01)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(0, 0, 1)); v = glm::vec4(v, 0) * rotation_z * rotation_y * rotation_x; v += location; } this->face.addVertices(vertices); this->face.addColor(face_color); this->face.addColor(face_color); this->face.addColor(face_color); this->face.addColor(face_color); this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 3); this->face.addIndex(index + 0); this->face.addIndex(index + 3); this->face.addIndex(index + 2); } } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 1.44); this->face.draw(); this->cam.end(); /* int start = 15; 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); } } */ } //-------------------------------------------------------------- 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/Insta20250223