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Rotate a set of vertices over and over.
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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 drawVertices(vector<glm::vec3> vertices); ofEasyCam cam; ofMesh frame; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(0); ofSetColor(255); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 0.5); int radius = 200; auto seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); vector<glm::vec3> vertices; for (int i = 0; i < 100; i++) { auto location = glm::vec3( ofMap(ofNoise(seed.x, (ofGetFrameNum() + i) * 0.008), 0, 1, -1, 1), ofMap(ofNoise(seed.y, (ofGetFrameNum() + i) * 0.008), 0, 1, -1, 1), ofMap(ofNoise(seed.z, (ofGetFrameNum() + i) * 0.008), 0, 1, -1, 1) ); location = glm::normalize(location) * radius; vertices.push_back(location); } this->drawVertices(vertices); for (int i = 0; i < 18; i++) { ofRotateX(60); ofRotateY(60); ofRotateZ(60); this->drawVertices(vertices); } this->cam.end(); } //-------------------------------------------------------------- void ofApp::drawVertices(vector<glm::vec3> vertices) { ofNoFill(); ofBeginShape(); ofVertices(vertices); ofEndShape(); ofFill(); ofDrawSphere(vertices.front(), 3); ofDrawSphere(vertices.back(), 3); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |