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一部だけ描写した正方形を重ねてみました。
Incomplete squrees.
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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 len, int deg, int z = 0); }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("Insta"); ofBackground(39); ofNoFill(); ofSetLineWidth(2.5); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); for (int x_index = -1; x_index <= 1; x_index++) { for (int y_index = -1; y_index <= 1; y_index++) { ofPoint location(x_index * 230, y_index * 230); ofPushMatrix(); ofTranslate(location); for (int rect_len = 30; rect_len < 200; rect_len += 16) { ofColor color; color.setHsb(ofRandom(255), 200, 255); ofSetColor(color); int start_noise = ofNoise(location.x * 0.1, rect_len * 0.05, ofGetFrameNum() * 0.005) * 360; int end_noise = ofMap(ofNoise(location.y * 0.1, rect_len * 0.05, ofGetFrameNum() * 0.01), 0, 1, -90, 360); int start_deg = ofRandom(360) + start_noise; int end_deg = start_deg + end_noise; if (start_deg > end_deg) { continue; } ofBeginShape(); for (int deg = start_deg; deg < end_deg; deg += 1) { ofVertex(this->make_rect_point(rect_len, deg)); } ofEndShape(); } ofPopMatrix(); } } } //-------------------------------------------------------------- ofPoint ofApp::make_rect_point(float len, int deg, int z) { 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), z); case 1: return ofPoint(ofMap((deg + 45) % 90, 0, 89, half_len, -half_len), half_len, z); case 2: return ofPoint(-half_len, ofMap((deg + 45) % 90, 0, 89, half_len, -half_len), z); case 3: return ofPoint(ofMap((deg + 45) % 90, 0, 89, -half_len, half_len), -half_len, z); default: return ofPoint(0, 0, 0); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |