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吸い込まれる。
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#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 mouseEntered(int x, int y) {}; void mouseExited(int x, int y) {}; void windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; ofMesh mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(239); } //-------------------------------------------------------------- void ofApp::update() { this->mesh.clear(); float span = 1; ofColor color; for (float x = 0; x < ofGetWindowWidth(); x += span) { for (float y = 0; y < ofGetWindowHeight(); y += span) { auto len = glm::distance(glm::vec2(x, y), ofGetWindowSize() * 0.5); auto noise_value = ofMap(ofNoise(len * 0.01 + ofGetFrameNum() * 0.008, x * 0.001, y * 0.001), 0, 1, 0, 12); if ((int)noise_value % 4 == 0) { continue; } this->mesh.addVertex(glm::vec3(x, y, 0)); this->mesh.addVertex(glm::vec3(x + span, y, 0)); this->mesh.addVertex(glm::vec3(x + span, y + span, 0)); this->mesh.addVertex(glm::vec3(x, y + span, 0)); this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 4); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 3); color.setHsb((int)ofMap((int)noise_value, 0, 10, 128, 255 + 128) % 255, 180, len < 100 ? 255 : ofMap(len, 100, 450, 255, 0)); for (int i = 0; i < 4; i++) { this->mesh.addColor(color); } } } } //-------------------------------------------------------------- void ofApp::draw() { this->mesh.draw(); /* int start = 25; 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()); } |