[ Video ]
[ About ]
ノイズな円。
Noise circle.
[ Source ]
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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(39); ofNoFill(); ofSetLineWidth(1.5); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { int span = 240; int radius_base = 100; int len = 15; float hue = 0; for (int y = span * 0.5; y < ofGetHeight(); y += span) { for (int x = span * 0.5; x < ofGetWidth(); x += span) { ofColor color; color.setHsb(hue, 230, 255); ofSetColor(color); ofPushMatrix(); ofTranslate(x, y); vector<glm::vec2> out_vertices; vector<glm::vec2> in_vertices; for (int deg = 0; deg < 360; deg++) { auto noise_point = glm::vec2(x + radius_base * cos(deg * DEG_TO_RAD), y + radius_base * sin(deg * DEG_TO_RAD)); float noise_len = ofMap(ofNoise(noise_point.x * 0.01, noise_point.y * 0.01, ofGetFrameNum() * 0.01), 0, 1, 5, len); float radius = radius_base + noise_len; out_vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD))); radius = radius_base - noise_len; in_vertices.push_back(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD))); } ofBeginShape(); ofVertices(out_vertices); ofNextContour(true); ofVertices(in_vertices); ofEndShape(true); ofPopMatrix(); hue += 25.5; } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |