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10 PRINT Vortex.
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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) {}; glm::vec2 make_point(int len, int param); ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(39); ofSetLineWidth(3); ofSetRectMode(ofRectMode::OF_RECTMODE_CENTER); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); int span = 15; int draw_param = ofRandom(1000); vector<glm::vec2> location_list = { glm::vec2(-220, -220), glm::vec2(0, -220), glm::vec2(220, -220), glm::vec2(-220, 0), glm::vec2(220, 0) , glm::vec2(-220, 220), glm::vec2(0, 220), glm::vec2(220, 220) }; vector<float> rotate_list = { 180, 180, 270, 90, 270, 90, 0, 0 }; for (int i = 0; i < location_list.size(); i++) { ofPushMatrix(); ofTranslate(location_list[i]); ofRotateZ(rotate_list[i]); for (auto x = -90; x <= 90; x += span) { for (int y = -90; y <= 90; y += span) { auto draw = ofNoise(draw_param, location_list[i].x + x * 0.0035 + ofGetFrameNum() * 0.01, location_list[i].y + y * 0.0035); if (draw < 0.45) continue; ofPushMatrix(); ofTranslate(x, y, 0); auto noise_value = ofNoise(location_list[i].x + x * 0.005 + ofGetFrameNum() * 0.01, location_list[i].y + y * 0.005); auto start_param = noise_value < 0.5 ? 0 : 25; auto start = this->make_point(span, start_param); auto end = this->make_point(span, start_param + 50); ofDrawLine(start, end); ofDrawCircle(start, 4); ofDrawCircle(end, 4); ofPopMatrix(); } } ofNoFill(); ofDrawRectangle(glm::vec2(), 180 + 15, 180 + 15); ofFill(); ofPopMatrix(); } this->cam.end(); } //-------------------------------------------------------------- glm::vec2 ofApp::make_point(int len, int param) { param = param % 100; if (param < 25) { return glm::vec2(ofMap(param, 0, 25, -len * 0.5, len * 0.5), -len * 0.5); } else if (param < 50) { return glm::vec2(len * 0.5, ofMap(param, 25, 50, -len * 0.5, len * 0.5)); } else if (param < 75) { return glm::vec2(ofMap(param, 50, 75, len * 0.5, -len * 0.5), len * 0.5); } else { return glm::vec2(-len * 0.5, ofMap(param, 75, 100, len * 0.5, -len * 0.5)); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |