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パーティクルは近くのパーティクル同士で線を引きます。そして、パーティクルのサイズは線の数で変動します。
Particles draw lines with nearby particles. And, Particles size decision by count of line.
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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() { ofSetFrameRate(60); ofSetWindowTitle("Insta"); ofBackground(239); ofSetColor(39); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { vector<ofPoint> points; vector<int> sizes; for (int i = 0; i < 192; i++) { ofPoint point(ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.0005), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(ofRandom(100), ofGetFrameNum() * 0.0005), 0, 1, 0, ofGetHeight())); points.push_back(point); sizes.push_back(1); } for (int out_index = 0; out_index < points.size(); out_index++) { for (int in_index = out_index + 1; in_index < points.size(); in_index++) { if (points[out_index].distance(points[in_index]) < 50) { ofDrawLine(points[out_index], points[in_index]); sizes[out_index]++; sizes[in_index]++; } } } for (int i = 0; i < points.size(); i++) { ofDrawCircle(points[i], sizes[i]); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |