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Noise関数で揺れるしかくを並べてみました。
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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) {}; // Make Method ofPoint make_rect_point(float half_len, int deg); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofBackground(39); ofSetWindowTitle("Insta"); ofSetColor(239); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { int len = 89; for (int x = len * 0.5; x <= ofGetWidth() - len * 0.5; x += len + 1) { for (int y = len * 0.5; y <= ofGetHeight() - len * 0.5; y += len + 1) { ofPushMatrix(); ofTranslate(x, y); int deg_start = ofMap(ofNoise(x * 0.01, y * 0.01, ofGetFrameNum() * 0.005), 0, 1, 0, 720); int deg_end = deg_start + ofMap(ofNoise(x * 0.01, y * 0.01, ofGetFrameNum() * 0.005), 0, 1, 45, 225); ofBeginShape(); for (int deg = deg_start; deg < deg_end; deg += 1) { ofVertex(this->make_rect_point(len, deg)); } ofEndShape(true); ofPopMatrix(); } } } //-------------------------------------------------------------- ofPoint ofApp::make_rect_point(float len, int deg) { int half_len = len * 0.5; int param = (deg + 45) / 90; ofPoint point; switch (param % 4) { case 0: return ofPoint(half_len, ofMap((deg + 45) % 90, 0, 89, -half_len, half_len)); case 1: return ofPoint(ofMap((deg + 45) % 90, 0, 89, half_len, -half_len), half_len); case 2: return ofPoint(-half_len, ofMap((deg + 45) % 90, 0, 89, half_len, -half_len)); case 3: return ofPoint(ofMap((deg + 45) % 90, 0, 89, -half_len, half_len), -half_len); default: return ofPoint(0, 0); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |