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アメーバ球。
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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) {}; ofEasyCam cam; ofMesh mesh, frame; vector<ofMeshFace> triangle_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(255); ofEnableDepthTest(); auto ico_sphere = ofIcoSpherePrimitive(300, 8); this->triangle_list.insert(this->triangle_list.end(), ico_sphere.getMesh().getUniqueFaces().begin(), ico_sphere.getMesh().getUniqueFaces().end()); this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->mesh.clear(); this->frame.clear(); auto radius = 200; auto noise_seed = ofRandom(1000); for (int i = 0; i < this->triangle_list.size(); i++) { glm::vec3 avg = (this->triangle_list[i].getVertex(0) + this->triangle_list[i].getVertex(1) + this->triangle_list[i].getVertex(2)) / 3; auto noise_value = ofNoise(noise_seed + ofGetFrameNum() * 0.01, avg.y * 0.005, avg.x * 0.005, avg.z * 0.005); if (noise_value < 0.47 || noise_value > 0.53) { continue; } vector<glm::vec3> vertices; vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(0)) * radius); vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(1)) * radius); vertices.push_back(glm::normalize(this->triangle_list[i].getVertex(2)) * radius); this->mesh.addVertices(vertices); this->frame.addVertices(vertices); ofColor color; color.setHsb(ofMap(ofNoise(glm::vec4(noise_seed, avg * 0.0005)), 0, 1, 0, 255), 255, 255); for (int k = 0; k < vertices.size(); k++) { this->mesh.addColor(color); this->frame.addColor(color); } this->mesh.addTriangle(this->mesh.getNumVertices() - 1, this->mesh.getNumVertices() - 2, this->mesh.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 2); this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 3); this->frame.addIndex(this->frame.getNumVertices() - 1); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum()); this->mesh.draw(); this->frame.drawWireframe(); this->cam.end(); ostringstream os; os << setw(4) << setfill('0') << ofGetFrameNum(); ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/img_" + os.str() + ".jpg"); if (ofGetFrameNum() >= 30 * 20 + 1) { std::exit(1); } // > ffmpeg -i img_%04d.jpg -r 30 out.mp4 } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |