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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) {}; vector<ofColor> base_color_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(255); ofSetLineWidth(2); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY); ofColor color; this->base_color_list.push_back(ofColor(0, 0, 0)); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); int len = 8; ofColor color; for (int base_x = -270; base_x <= 270; base_x += 180) { color.setHsb(ofMap(base_x, -270, 450, 0, 255), 200, 255); for (int radius = 0; radius < 80; radius += 5) { ofMesh face, line; line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); int start_deg = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0025), 0, 1, -360, 360); int deg_len = ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -180, 360); for (int deg = start_deg; deg <= start_deg + deg_len; deg++) { face.addVertex(glm::vec3(base_x + radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0)); face.addVertex(glm::vec3(base_x + radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0)); face.addVertex(glm::vec3(base_x + (radius + len) * cos((deg + 1) * DEG_TO_RAD), (radius + len) * sin((deg + 1) * DEG_TO_RAD), 0)); face.addVertex(glm::vec3(base_x + (radius + len) * cos(deg * DEG_TO_RAD), (radius + len) * sin(deg * DEG_TO_RAD), 0)); for (int i = 0; i < 4; i++) { face.addColor(ofColor(color, 128)); } face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4); line.addVertex(glm::vec3(base_x + radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0)); line.addVertex(glm::vec3(base_x + radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0)); line.addVertex(glm::vec3(base_x + (radius + len) * cos((deg + 1) * DEG_TO_RAD), (radius + len) * sin((deg + 1) * DEG_TO_RAD), 0)); line.addVertex(glm::vec3(base_x + (radius + len) * cos(deg * DEG_TO_RAD), (radius + len) * sin(deg * DEG_TO_RAD), 0)); for (int i = 0; i < 4; i++) { line.addColor(color); } line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 4); if (deg == start_deg) { line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4); } if (deg == start_deg + deg_len) { line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3); } } face.draw(); line.draw(); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |