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5色ライン。
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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(0); } //-------------------------------------------------------------- void ofApp::update() { this->mesh.clear(); float span = 1; ofColor color; for (float x_start = 18; x_start < 720; x_start += 144) { for (float x = x_start; x < x_start + 108; x += span) { for (float y = 60; y < 660; y += span) { float noise_value = ofMap(ofNoise(x * 0.015, y * 0.003 + ofGetFrameNum() * 0.02, ofGetFrameNum() * 0.01), 0, 1, 0, 10); 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); color.setHsb(ofMap(x_start, 18, 720, 0, 255), 180, 255); for (int i = 0; i < 4; i++) { this->mesh.addColor(color); } } } } } //-------------------------------------------------------------- void ofApp::draw() { this->mesh.draw(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |