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3色アメーバ。
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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) {}; vector<ofMesh> mesh_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); for (int i = 0; i < 3; i++) { ofMesh mesh; this->mesh_list.push_back(mesh); } } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); int len = 580; int span = 1; ofColor color; int index = 0; for (auto& mesh : this->mesh_list) { mesh.clear(); auto 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(seed, x * 0.003, y * 0.003, ofGetFrameNum() * 0.01), 0, 1, 0, 10); if ((int)noise_value % 2 == 0) { continue; } mesh.addVertex(glm::vec3(x, y, 0)); mesh.addVertex(glm::vec3(x + span, y, 0)); mesh.addVertex(glm::vec3(x + span, y + span, 0)); mesh.addVertex(glm::vec3(x, y + span, 0)); mesh.addIndex(mesh.getNumVertices() - 1); mesh.addIndex(mesh.getNumVertices() - 4); mesh.addIndex(mesh.getNumVertices() - 3); mesh.addIndex(mesh.getNumVertices() - 1); mesh.addIndex(mesh.getNumVertices() - 2); mesh.addIndex(mesh.getNumVertices() - 3); noise_value = noise_value - (int)noise_value; color.setHsb(ofMap(index, 0, 3, 128, 255), 255, 255, ofMap(abs(noise_value - 0.5), 0, 0.5, 255, 0)); for (int i = 0; i < 4; i++) { mesh.addColor(color); } } } index++; } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); for (auto& mesh : this->mesh_list) { mesh.draw(); } /* ostringstream os; os << setw(4) << setfill('0') << ofGetFrameNum() + 1; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/img_" + os.str() + ".jpg"); if (ofGetFrameNum() + 1 >= 24 * 20) { std::exit(1); } */ // > ffmpeg -i img_%04d.jpg -r 24 out.mp4 } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |