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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; ofMesh face, line, vertices; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetLineWidth(2); ofEnableDepthTest(); this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); this->vertices.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face.clear(); this->line.clear(); this->vertices.clear(); int len = 300; int width = 30; for (int y = -300; y <= 300; y += width){ int start_param = ofRandom(1000) + ofGetFrameNum() * ofRandom(0.5, 1); int end_param = start_param + 35; for (int param = start_param; param <= end_param; param++) { vector<glm::vec3> vertices; vertices.push_back(glm::vec3(this->make_point(len, param), width * 0.5 + y)); vertices.push_back(glm::vec3(this->make_point(len, param), width * -0.5 + y)); this->face.addVertices(vertices); this->line.addVertices(vertices); if (param > start_param) { this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 2); this->face.addIndex(this->face.getNumVertices() - 4); this->face.addIndex(this->face.getNumVertices() - 1); this->face.addIndex(this->face.getNumVertices() - 3); this->face.addIndex(this->face.getNumVertices() - 4); this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 3); this->line.addIndex(this->line.getNumVertices() - 2); this->line.addIndex(this->line.getNumVertices() - 4); } if (param % 25 == 0) { this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2); } } this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2); } vector<ofColor> base_color_list; ofColor color; vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c }; for (auto hex : hex_list) { color.setHex(hex); base_color_list.push_back(color); } int color_index = 0; for (int i = 0; i < 300; i++) { this->vertices.addVertex(glm::vec3( ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -150, 150), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -150, 150), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.005), 0, 1, -300, 300) )); this->vertices.addColor(base_color_list[color_index]); color_index = (color_index + 1) % base_color_list.size(); } for (int i = 0; i < this->vertices.getNumVertices(); i++) { for (int k = i + 1; k < this->vertices.getNumVertices(); k++) { if (glm::distance(this->vertices.getVertex(i), this->vertices.getVertex(k)) < 50) { this->vertices.addIndex(i); this->vertices.addIndex(k); } } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(90); ofSetColor(39); this->face.draw(); ofSetColor(239); this->line.drawWireframe(); for (int i = 0; i < this->vertices.getNumVertices(); i++) { ofSetColor(this->vertices.getColor(i)); ofDrawSphere(this->vertices.getVertex(i), 5); } this->vertices.drawWireframe(); 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()); } |