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1,280個の円をランダムで配置。Noise関数で動くポイントが近づくと色が発色するようにしました。
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#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); ofBackground(239); ofSetWindowTitle("Insta"); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { float random_value_x = ofRandom(100); float random_value_y = ofRandom(100); vector<ofPoint> targets; for (int i = 0; i < 50; i++) { ofPoint target(ofMap(ofNoise(random_value_x, (ofGetFrameNum() - i) * 0.008), 0, 1, 0, ofGetWidth()), ofMap(ofNoise(random_value_y, (ofGetFrameNum() - i) * 0.008), 0, 1, 0, ofGetHeight())); targets.push_back(target); } ofColor color; for(int i = 0; i < 1280; i++){ ofPoint point(ofRandom(ofGetWidth()), ofRandom(ofGetHeight())); color.setHsb(ofRandom(255), 200, 255); float radius = ofRandom(3, 30); for (int targets_index = 0; targets_index < targets.size(); targets_index++) { float distance = point.distance(targets[targets_index]); if (distance < 120) { ofSetColor(color, ofMap(distance, 0, 120, 50 - targets_index, 0)); ofDrawCircle(point, radius); } } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(1280, 720, OF_WINDOW); ofRunApp(new ofApp()); } |