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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; float noise_param; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); auto param = ofGetFrameNum() % 50; if (param > 12 && param < 38) { if (param < 25) { this->noise_param += ofMap(param, 12, 25, 0.001, 0.015); } else if (param > 25) { this->noise_param += ofMap(param, 25, 38, 0.015, 0.001); } else { this->noise_param += 0.001; } } else { this->noise_param += 0.001; } this->mesh.clear(); int len = 660; int span = 3; ofColor color; for (int i = 0; i < 3; i++) { auto noise_seed = ofRandom(1000); for (int x = len * -0.5; x < len * 0.5; x += span) { for (int y = len * -0.5; y < len * 0.5; y += span) { auto noise_value = ofMap(ofNoise(noise_seed, x * 0.0002, y * 0.00005 - this->noise_param), 0, 1, 0, 20); if ((int)noise_value % 2 == 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); auto gap_noise_value = noise_value - (int)noise_value; color.setHsb(ofMap(i, 0, 3, 0, 255), 200, 255, ofMap(abs(gap_noise_value - 0.5), 0, 0.5, 255, 0)); for (int k = 0; k < 4; k++) { this->mesh.addColor(color); } } } } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); this->mesh.draw(); /* int start = 400 + 480; 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()); } |