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ノイズで不完全な円を作成。たまにココイチのロゴっぽくなる所がハイライト
Cleated incomplate circles by Perlin Noise.
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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) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetLineWidth(2); ofSetColor(39); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { int radius = 36; for (int x = radius; x < ofGetHeight(); x += radius * 2) { for (int y = radius; y < ofGetHeight(); y += radius * 2) { ofPushMatrix(); ofTranslate(x, y); int deg_start = ofMap(ofNoise(x * 0.05, ofGetFrameNum() * 0.005), 0, 1, 0, 720); int deg_end = ofMap(ofNoise((y + radius) * 0.05, ofGetFrameNum() * 0.005), 0, 1, 0, 720); if (deg_start > deg_end) { std::swap(deg_start, deg_end); } ofFill(); ofBeginShape(); for (int deg = deg_start; deg < deg_end; deg += 5) { ofVertex(radius * 0.85 * cos(deg * DEG_TO_RAD), radius * 0.85 * sin(deg * DEG_TO_RAD)); } if (deg_end - deg_start < 180) { ofVertex(0, 0); } ofEndShape(true); ofNoFill(); ofBeginShape(); for (int deg = 0; deg < 360; deg += 5) { ofVertex(radius * 0.95 * cos(deg * DEG_TO_RAD), radius * 0.95 * sin(deg * DEG_TO_RAD)); } ofEndShape(true); ofPopMatrix(); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |