[ Video ]
[ About ]
結ばれた形。
[ Source ]
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 |
#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; }; |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 |
#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(239); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); int v_span = 8; int u_span = 90; int R = 200; ofMesh face, line; line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); float noise_seed = ofRandom(1000); for (int v = 0; v <= 360; v += v_span * 1.5) { int u_start = ofMap(ofNoise(noise_seed, cos(v * DEG_TO_RAD) * 0.35, sin(v * DEG_TO_RAD) * 0.35, ofGetFrameNum() * 0.015), 0, 1, -360, 360); int next_u = ofMap(ofNoise(noise_seed, cos((v + v_span * 0.9) * DEG_TO_RAD) * 0.35, sin((v + v_span * 0.9) * DEG_TO_RAD) * 0.35, ofGetFrameNum() * 0.015), 0, 1, -360, 360); int r = ofMap(ofNoise(noise_seed, cos(v * DEG_TO_RAD) * 0.25, sin(v * DEG_TO_RAD) * 0.25, ofGetFrameNum() * 0.03), 0, 1, -100, 100); int next_r = ofMap(ofNoise(noise_seed, cos((v + v_span * 0.9) * DEG_TO_RAD) * 0.25, sin((v + v_span * 0.9) * DEG_TO_RAD) * 0.25, ofGetFrameNum() * 0.03), 0, 1, -100, 100); for (int u = u_start; u < u_start + 360; u += u_span) { face.addVertex(this->make_point(R, r, u, v)); face.addVertex(this->make_point(R, r, u + u_span, v)); face.addVertex(this->make_point(R, next_r, next_u + u_span, v + v_span * 0.5)); face.addVertex(this->make_point(R, next_r, next_u, v + v_span * 0.5)); line.addVertex(this->make_point(R, r, u, v)); line.addVertex(this->make_point(R, r, u + u_span, v)); line.addVertex(this->make_point(R, next_r, next_u + u_span, v + v_span * 0.5)); line.addVertex(this->make_point(R, next_r, next_u, v + v_span * 0.5)); ofColor face_color = ofColor(0); ofColor line_color = ofColor(239, 39, 39); face.addColor(face_color); face.addColor(face_color); face.addColor(face_color); face.addColor(face_color); line.addColor(line_color); line.addColor(line_color); line.addColor(line_color); line.addColor(line_color); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4); line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4); line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 4); if (v > 0) { line.addIndex(line.getNumVertices() - 4); line.addIndex(line.getNumVertices() - 17); } next_u += u_span; } } face.drawFaces(); line.drawWireframe(); this->cam.end(); /* // ffmpeg -i img_%04d.jpg aaa.mp4 int start = 500; if (ofGetFrameNum() > start) { std::ostringstream os; os << std::setw(4) << std::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/DoodleDeProgramming/tree/a07321ff08f850e841e6facf14e484e68a5cda1f