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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) {}; void setStarToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius); vector<ofColor> color_list; ofMesh face_mesh, frame_mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(0); ofColor color; vector<int> hex_list = { 0x247BA0, 0x70C1B3, 0xB2DBBF, 0xF3FFBD, 0xFF1654 }; for (auto hex : hex_list) { color.setHex(hex); this->color_list.push_back(color); } this->frame_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face_mesh.clear(); this->frame_mesh.clear(); auto radius = 60; for (auto x = radius; x < ofGetWidth(); x += radius * 2) { for (auto y = radius; y < ofGetHeight(); y += radius * 2) { this->setStarToMesh(this->face_mesh, this->frame_mesh, glm::vec3(x, y, 0), radius * 0.9); } } } //-------------------------------------------------------------- void ofApp::draw() { this->face_mesh.drawFaces(); //this->frame_mesh.drawWireframe(); } //-------------------------------------------------------------- void ofApp::setStarToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius) { int deg_start = ofRandom(360); ofColor color = this->color_list[(int)ofRandom(this->color_list.size())]; for (auto deg = deg_start; deg < deg_start + 360; deg += 72) { int face_index = face_target.getVertices().size(); face_target.addVertex(location + glm::vec3(radius * 0.05 * cos(deg * DEG_TO_RAD), radius * 0.05 * sin(deg * DEG_TO_RAD), 0)); face_target.addVertex(location + glm::vec3(radius * 0.5 * cos((deg - 28) * DEG_TO_RAD), radius * 0.5 * sin((deg - 28) * DEG_TO_RAD), 0)); face_target.addVertex(location + glm::vec3(radius * 0.5 * cos((deg + 28) * DEG_TO_RAD), radius * 0.5 * sin((deg + 28) * DEG_TO_RAD), 0)); face_target.addVertex(location + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0)); for (auto i = face_index; i < face_target.getVertices().size(); i++) { auto param = (deg_start + deg + ofGetFrameNum() * 3) % 360; param < 330 ? face_target.addColor(ofColor(color, ofMap(param, 0, 330, 255, 0))) : face_target.addColor(ofColor(color, 0)); } face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); int frame_index = frame_target.getVertices().size(); frame_target.addVertex(location + glm::vec3(radius * 0.05 * cos(deg * DEG_TO_RAD), radius * 0.05 * sin(deg * DEG_TO_RAD), 0)); frame_target.addVertex(location + glm::vec3(radius * 0.5 * cos((deg - 28) * DEG_TO_RAD), radius * 0.5 * sin((deg - 28) * DEG_TO_RAD), 0)); frame_target.addVertex(location + glm::vec3(radius * 0.5 * cos((deg + 28) * DEG_TO_RAD), radius * 0.5 * sin((deg + 28) * DEG_TO_RAD), 0)); frame_target.addVertex(location + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0)); for (auto i = frame_index; i < frame_target.getVertices().size(); i++) { frame_target.addColor(color); } frame_target.addIndex(face_index + 0); frame_target.addIndex(face_index + 1); frame_target.addIndex(face_index + 0); frame_target.addIndex(face_index + 2); frame_target.addIndex(face_index + 3); frame_target.addIndex(face_index + 1); frame_target.addIndex(face_index + 3); frame_target.addIndex(face_index + 2); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |