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立ち止まって考える。
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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; float noise_step; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofSetCircleResolution(60); ofNoFill(); ofEnableDepthTest(); this->noise_step = ofRandom(1000); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); auto param = ofGetFrameNum() % 50; if (param < 20) { this->noise_step += 0; } else if (param < 25) { this->noise_step += ofMap(param, 20, 25, 0, 0.015); } else if (param < 45) { this->noise_step += 0.015; } else { this->noise_step += ofMap(param, 45, 50, 0.015, 0); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 2.88); auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); for (int i = 0; i < 32; i++) { ofPushMatrix(); ofRotateZ(ofMap(ofNoise(noise_seed.z, this->noise_step + i * 0.0075), 0, 1, -360, 360)); ofRotateY(ofMap(ofNoise(noise_seed.y, this->noise_step + i * 0.0075), 0, 1, -360, 360)); ofRotateX(ofMap(ofNoise(noise_seed.x, this->noise_step + i * 0.0075), 0, 1, -360, 360)); ofSetLineWidth(ofMap(i, 0, 32, 1, 5)); ofDrawCircle(glm::vec3(), ofMap(i, 0, 32, 150, 250)); ofPopMatrix(); } this->cam.end(); /* // 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/187ce4cda8507100a50d31f6fbd3d5a7e406d563