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関節の輪。
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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) {}; float noise_param; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofSetColor(239); ofSetLineWidth(2); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); if (ofGetFrameNum() % 60 < 35) { this->noise_param += ofMap(ofGetFrameNum() % 60, 0, 35, 0.05, 0); } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); ofRotateY(ofGetFrameNum() * 1.44); float radius = 180; auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); for (int deg = 0; deg < 360; deg += 5) { auto noise_location = glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); auto noise_value = ofNoise(glm::vec4(noise_seed.x, noise_location * 0.0075, this->noise_param)); auto noise_deg = ofMap(noise_value, 0, 1, -360, 360); auto len = radius * 0.5; ofPushMatrix(); ofRotate(deg); ofTranslate(glm::vec2(radius, 0)); ofRotateY(noise_deg); ofDrawLine(glm::vec2(), glm::vec2(len, 0)); ofDrawSphere(glm::vec3(), 3); ofTranslate(glm::vec2(len, 0)); noise_value = ofNoise(glm::vec4(noise_seed.y, noise_location * 0.0075, this->noise_param)); noise_deg = ofMap(noise_value, 0, 1, -360, 360); ofRotateY(noise_deg); ofDrawLine(glm::vec2(), glm::vec2(len * 0.5, 0)); ofDrawSphere(glm::vec3(), 3); ofTranslate(glm::vec2(len * 0.5, 0)); noise_value = ofNoise(glm::vec4(noise_seed.z, noise_location * 0.0075, this->noise_param)); noise_deg = ofMap(noise_value, 0, 1, -360, 360); ofRotateY(noise_deg); ofDrawLine(glm::vec2(), glm::vec2(len * 0.25, 0)); ofDrawSphere(glm::vec3(), 3); ofDrawSphere(glm::vec3(len * 0.25, 0, 0), 3); ofPopMatrix(); } /* // ffmpeg -i img_%04d.jpg aaa.mp4 int start = 250; 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); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/124396af8a2a932cb98f6b35bf3b5adae7ca6479