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Noise To Degree.
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#include "ofMain.h" #include "ofFbo.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) {}; ofFbo fbo; ofVec2f prev_point; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofBackground(255); ofSetWindowTitle("Insta"); ofSetColor(0); this->fbo.allocate(ofGetWidth(), ofGetHeight()); } //-------------------------------------------------------------- void ofApp::update(){ float radius = 10; float deg = 0; ofVec2f point; this->prev_point = ofVec2f(); this->fbo.begin(); ofClear(0); for (int i = 0; i <= 200 ; i += 1) { deg = 720 * ofNoise((ofGetFrameNum() - i) * 0.025); point = ofVec2f(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)); point += ofVec2f(ofGetWidth() / 2, ofGetHeight() / 2); if (prev_point == ofVec2f()) { ofDrawCircle(point, 5); } else { ofDrawLine(point, this->prev_point); } this->prev_point = point; radius += 1.5; } ofDrawCircle(point, 5); this->fbo.end(); } //-------------------------------------------------------------- void ofApp::draw() { this->fbo.draw(0, 0); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |