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ribbon kaleidoscope.
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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) {}; ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetLineWidth(2); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(295); for (int k = 0; k < 1; k++) { auto noise_seed_deg = ofRandom(1000); auto noise_seed_radius = ofRandom(1000); vector<glm::vec3> vertices; for (int i = 0; i < 45; i++) { auto noise_deg = ofMap(ofNoise(noise_seed_deg, (ofGetFrameNum() + i) * 0.006), 0, 1, -360, 360); auto noise_radius = ofMap(ofNoise(noise_seed_radius, (ofGetFrameNum() + i) * 0.005), 0, 1, -350, 350); vertices.push_back(glm::vec3(noise_radius * cos(noise_deg * DEG_TO_RAD), noise_radius * sin(noise_deg * DEG_TO_RAD), 0)); } for (int deg = 0; deg < 360; deg += 30) { auto rotation = glm::rotate(glm::mat4(), deg * (float)DEG_TO_RAD, glm::vec3(0, 0, 1)); ofMesh face, line; line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); for (int i = 0; i < vertices.size(); i++) { face.addVertex(glm::vec4(vertices[i], 0) * rotation + glm::vec4(0, 0, -15, 0)); face.addVertex(glm::vec4(vertices[i], 0) * rotation + glm::vec4(0, 0, 15, 0)); line.addVertex(glm::vec4(vertices[i], 0) * rotation + glm::vec4(0, 0, -15, 0)); line.addVertex(glm::vec4(vertices[i], 0) * rotation + glm::vec4(0, 0, 15, 0)); if (i > 0) { face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 4); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4); line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 3); line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 4); } } line.addIndex(0); line.addIndex(1); line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 2); ofSetColor(39); face.draw(); ofSetColor(239); line.drawWireframe(); } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |