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ノイズを示すコンパス。
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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() { ofSetWindowTitle("openFrameworks"); ofSetFrameRate(30); ofBackground(0); ofSetLineWidth(2); ofNoFill(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); auto radius = 10; ofColor color; for (int x = -300; x <= 300; x += 30) { for (int y = -300; y <= 300; y += 30) { ofPushMatrix(); ofTranslate(x, y); auto deg = ofMap(ofNoise(x * 0.0015, y * 0.0015, ofGetFrameNum() * 0.0075), 0, 1, 0, 360); ofDrawCircle(glm::vec2(), radius); ofDrawLine( glm::vec2(radius * 1.85 * cos(deg * DEG_TO_RAD), radius * 1.85 * sin(deg * DEG_TO_RAD)), glm::vec2(radius * 1.85 * cos((deg + 180) * DEG_TO_RAD), radius * 1.85 * sin((deg + 180) * DEG_TO_RAD))); ofPopMatrix(); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |