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円の柄。
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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 windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(0); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); int deg_span = 30; int radius_span = 1; for (int deg = 0; deg < 360; deg += deg_span) { for (int radius = 15; radius < 720; radius += radius_span) { auto noise_deg = ofMap(ofNoise(radius * 0.0015 - ofGetFrameNum() * 0.005), 0, 1, 360, -360); auto next_noise_deg = ofMap(ofNoise((radius + radius_span) * 0.0015 - ofGetFrameNum() * 0.005), 0, 1, 360, -360); ofBeginShape(); ofVertex(glm::vec2(radius * cos((deg + noise_deg - 5) * DEG_TO_RAD), radius * sin((deg + noise_deg - 5) * DEG_TO_RAD))); ofVertex(glm::vec2(radius * cos((deg + noise_deg + 5) * DEG_TO_RAD), radius * sin((deg + noise_deg + 5) * DEG_TO_RAD))); ofVertex(glm::vec2((radius + radius_span) * cos((deg + next_noise_deg + 5) * DEG_TO_RAD), (radius + radius_span) * sin((deg + next_noise_deg + 5) * DEG_TO_RAD))); ofVertex(glm::vec2((radius + radius_span) * cos((deg + next_noise_deg - 5) * DEG_TO_RAD), (radius + radius_span) * sin((deg + next_noise_deg - 5) * DEG_TO_RAD))); ofEndShape(true); noise_deg = ofMap(ofNoise(radius * 0.0015 - ofGetFrameNum() * 0.005), 0, 1, -360, 360); next_noise_deg = ofMap(ofNoise((radius + radius_span) * 0.0015 - ofGetFrameNum() * 0.005), 0, 1, -360, 360); ofBeginShape(); ofVertex(glm::vec2(radius * cos((deg + noise_deg - 5) * DEG_TO_RAD), radius * sin((deg + noise_deg - 5) * DEG_TO_RAD))); ofVertex(glm::vec2(radius * cos((deg + noise_deg + 5) * DEG_TO_RAD), radius * sin((deg + noise_deg + 5) * DEG_TO_RAD))); ofVertex(glm::vec2((radius + radius_span) * cos((deg + next_noise_deg + 5) * DEG_TO_RAD), (radius + radius_span) * sin((deg + next_noise_deg + 5) * DEG_TO_RAD))); ofVertex(glm::vec2((radius + radius_span) * cos((deg + next_noise_deg - 5) * DEG_TO_RAD), (radius + radius_span) * sin((deg + next_noise_deg - 5) * DEG_TO_RAD))); ofEndShape(true); } } /* // 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/02ded16897aedc3d81478434947a9c97d122ce9d