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色と境目は別々のノイズのシード値で分ける。
Colors and borders are separated by separate noise seed values.
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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; ofTrueTypeFont font; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(0); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->mesh.clear(); int span = 1; ofColor color; for (int base_x = -240; base_x <= 240; base_x += 160) { for (int base_y = -240; base_y <= 240; base_y += 160) { auto color_noise_seed_1 = ofRandom(1000); auto color_noise_seed_2 = ofRandom(1000); for (int x = -55; x < 55; x += span) { for (int y = -55; y < 55; y += span) { auto noise_value = ofNoise((x + base_x) * 0.005, (y + base_y) * 0.005 + ofGetFrameNum() * 0.01, ofGetFrameNum() * 0.01); if (noise_value > 0.45 && noise_value < 0.53) { continue; } auto color_noise_value_1 = ofNoise(color_noise_seed_1, ofGetFrameNum() * 0.001); auto color_noise_value_2 = ofNoise(color_noise_seed_2, ofGetFrameNum() * 0.001); this->mesh.addVertex(glm::vec3(x + base_x, y + base_y, 0)); this->mesh.addVertex(glm::vec3(x + span + base_x, y + base_y, 0)); this->mesh.addVertex(glm::vec3(x + span + base_x, y + span + base_y, 0)); this->mesh.addVertex(glm::vec3(x + base_x, y + span + base_y, 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); if (noise_value < 0.45) { color.setHsb(ofMap(color_noise_value_1, 0, 0.85, 0, 255), 130, 255); } else { color.setHsb(ofMap(color_noise_value_2, 0, 0.85, 0, 255), 130, 255); } for (int i = 0; i < 4; i++) { this->mesh.addColor(color); } } } } } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); this->mesh.draw(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |