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波打つ円。
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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; ofMesh line; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(39); ofSetColor(255); ofEnableDepthTest(); ofSetLineWidth(1); this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->line.clear(); auto noise_param = glm::vec3(ofRandom(360), ofRandom(360), ofRandom(360)); for (int radius = 50; radius <= 300; radius += 5) { int start_index = this->line.getNumVertices(); int index = start_index; auto z = ofMap(ofNoise(radius * 0.005 + ofGetFrameNum() * 0.03), 0, 1, -300, 300); for (int deg = 0; deg < 360; deg += 1) { auto vertex = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z); this->line.addVertex(vertex); if (deg > 0) { this->line.addIndex(index - 1); this->line.addIndex(index); } index++; } this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(start_index); } int index_span = 30; for (int index = 0; index < this->line.getNumVertices() - 360; index += index_span) { this->line.addIndex(index); this->line.addIndex(index + 360); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(115); ofRotateZ(ofGetFrameNum() * 1.44); this->line.drawWireframe(); this->cam.end(); /* int start = 150; if (ofGetFrameNum() > start) { ostringstream os; os << setw(4) << setfill('0') << ofGetFrameNum() - start; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/cap/img_" + os.str() + ".jpg"); if (ofGetFrameNum() - start >= 25 * 20) { std::exit(1); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |