[ Video ]
[ About ]
球の上の線たち。
Lines on sphere.
[ 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 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; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetLineWidth(3); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 0.5); auto radius = 300; auto noise_step = 0.003; auto len = 30; ofColor color; for (auto deg = 0; deg < 360; deg += 10) { auto noise_seed_x = ofRandom(1000); auto noise_seed_y = ofRandom(1000); auto noise_seed_z = ofRandom(1000); color.setHsb(ofMap(deg, 0, 360, 0, 255), 180, 255); glm::vec3 pre_location; for (int i = 0; i < len; i++) { auto angle_x = ofMap(ofNoise(noise_seed_x, (ofGetFrameNum() + i) * noise_step), 0, 1, -PI * 2, PI * 2); auto angle_y = ofMap(ofNoise(noise_seed_y, (ofGetFrameNum() + i) * noise_step), 0, 1, -PI * 2, PI * 2); auto angle_z = ofMap(ofNoise(noise_seed_z, (ofGetFrameNum() + i) * noise_step), 0, 1, -PI * 2, PI * 2); auto location = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * 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; if (i > 0) { ofSetColor(color, ofMap(i, 0, len, 0, 255)); ofDrawLine(location, pre_location); } pre_location = location; } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/Insta20190828