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2色アメーバ。
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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) {}; ofMesh mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { this->mesh.clear(); float span = 3; ofColor color; for (float x = 30; x < ofGetWindowWidth() - 30 - span; x += span) { for (float y = 30; y < ofGetWindowHeight() - 30 - span; y += span) { 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)); for (int i = this->mesh.getNumVertices() - 4; i < this->mesh.getNumVertices(); i++) { auto noise_value = ofMap(ofNoise(this->mesh.getVertex(i).x * 0.005, this->mesh.getVertex(i).y * 0.005, ofGetFrameNum() * 0.015), 0, 1, 0, 2); int int_noise_value = noise_value; float param = noise_value - int_noise_value; param = abs(param - 0.5); color.setHsb(ofMap(int_noise_value, 0, 2, 0, 255), 255, 255, param < 0.35 ? ofMap(param, 0, 0.35, 255, 0) : 0); this->mesh.addColor(color); } this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 2); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 1); this->mesh.addIndex(this->mesh.getNumVertices() - 3); this->mesh.addIndex(this->mesh.getNumVertices() - 4); } } } //-------------------------------------------------------------- void ofApp::draw() { this->mesh.draw(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |