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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(25); ofSetWindowTitle("openframeworks"); ofBackground(0); ofSetLineWidth(1); ofSetColor(255, 100, 100); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); bool flag = true; auto x = 0; for (float deg = 0; deg < 360; deg += 0.5) { ofPushMatrix(); ofRotate(deg); auto base_location = glm::vec2(x, 50); auto target_location = glm::vec2(x, ofRandom(230, 300)); auto distance = target_location - base_location; auto len = glm::length(distance); auto noise_seed = ofMap(ofNoise(glm::vec2(100 * cos(deg * DEG_TO_RAD), 100 * sin(deg * DEG_TO_RAD))), 0, 1, 0, 1000); vector<glm::vec2> vertices; for (int d = 0; d <= len; d++) { auto location = base_location + glm::normalize(distance) * d; auto noise_x = ofMap(ofNoise(noise_seed, location.x * 0.05, location.y * 0.01 + ofGetFrameNum() * 0.02), 0, 1, -20, 20); location += glm::vec2(noise_x, 0); vertices.push_back(location); } ofNoFill(); ofBeginShape(); ofVertices(vertices); ofEndShape(); ofPopMatrix(); } /* int start = 150; if (ofGetFrameNum() > start) { ostringstream os; os << setw(4) << setfill('0') << ofGetFrameNum() - start; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/cap/img_" + os.str() + ".jpg"); if (ofGetFrameNum() - start >= 25 * 20) { std::exit(1); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |