[ Video ]
[ About ]
ねじれ円。
Twisting circle.
[ 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 mouseEntered(int x, int y) {}; void mouseExited(int x, int y) {}; void windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; 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 |
#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(39); ofSetLineWidth(3); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(36); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); auto len = 10; auto noise_seed_x = ofRandom(1000); auto noise_seed_y = ofRandom(1000); auto noise_seed_z = ofRandom(1000); for (auto radius = 10; radius < 150; radius += len + 2) { auto noise_value_x = ofNoise(noise_seed_x, radius * 0.005 + ofGetFrameNum() * 0.005); auto angle_x = 0.f; if (noise_value_x < 0.2) { angle_x = ofMap(noise_value_x, 0, 0.2, -PI, 0); } if (noise_value_x > 0.8) { angle_x = ofMap(noise_value_x, 0.8, 1, 0, PI); } auto noise_value_y = ofNoise(noise_seed_y, radius * 0.005 + ofGetFrameNum() * 0.005); auto angle_y = 0.f; if (noise_value_y < 0.2) { angle_y = ofMap(noise_value_y, 0, 0.2, -PI, 0); } if (noise_value_y > 0.8) { angle_y = ofMap(noise_value_y, 0.8, 1, 0, PI); } auto noise_value_z = ofNoise(noise_seed_z, radius * 0.005 + ofGetFrameNum() * 0.005); auto angle_z = 0.f; if (noise_value_z < 0.2) { angle_z = ofMap(noise_value_z, 0, 0.2, -PI, 0); } if (noise_value_z > 0.8) { angle_z = ofMap(noise_value_z, 0.8, 1, 0, PI); } vector<glm::vec3> out, in, line_out, line_in; for (auto deg = 0; deg <= 360; deg++) { auto location = glm::vec3((radius + len * 0.5) * cos(deg * DEG_TO_RAD), (radius + len * 0.5) * sin(deg * DEG_TO_RAD), 0); auto rotation_x = glm::rotate(glm::mat4(), angle_x, glm::vec3(1, 0, 0)); auto rotation_y = glm::rotate(glm::mat4(), angle_y, glm::vec3(0, 1, 0)); auto rotation_z = glm::rotate(glm::mat4(), angle_z, glm::vec3(0, 0, 1)); location = glm::vec4(location, 0) * rotation_z * rotation_y * rotation_x; out.push_back(glm::normalize(location) * (radius + len * 0.5)); in.push_back(glm::normalize(location) * (radius - len * 0.5)); line_out.push_back(glm::normalize(location) * (radius + len * 0.5 + 1)); line_in.push_back(glm::normalize(location) * (radius - len * 0.5 - 1)); } std::reverse(in.begin(), in.end()); ofFill(); ofSetColor(239); ofBeginShape(); ofVertices(out); ofVertices(in); ofEndShape(true); ofNoFill(); ofSetColor(39); ofBeginShape(); ofVertices(line_out); ofEndShape(true); ofBeginShape(); ofVertices(line_in); ofEndShape(true); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/Insta20190827