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ノイズの値で変化する球体と変化しない球体。
Spheres that change with the value of noise and spheres that do not change.
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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; vector<ofMeshFace> triangle_list; ofMesh mesh, yolk; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(255); ofEnableDepthTest(); auto ico_sphere = ofIcoSpherePrimitive(250, 5); this->triangle_list = ico_sphere.getMesh().getUniqueFaces(); } //-------------------------------------------------------------- void ofApp::update() { this->mesh.clear(); this->yolk.clear(); for (auto& triangle : this->triangle_list) { glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3; vector<glm::vec3> vertices; vertices.push_back(triangle.getVertex(0)); vertices.push_back(triangle.getVertex(1)); vertices.push_back(triangle.getVertex(2)); for (auto& vertex : vertices) { auto noise_value = 0.28 + ofNoise(glm::vec4(vertex * 0.01, ofGetFrameNum() * 0.0065)); noise_value = pow(noise_value, 2); auto noise_radius = 280 * noise_value; vertex = glm::normalize(vertex) * noise_radius; } this->yolk.addVertices(vertices); this->yolk.addTriangle(this->yolk.getNumVertices() - 1, this->yolk.getNumVertices() - 2, this->yolk.getNumVertices() - 3); } for (auto& triangle : this->triangle_list) { glm::vec3 avg = (triangle.getVertex(0) + triangle.getVertex(1) + triangle.getVertex(2)) / 3; auto noise_value = 0.28 + ofNoise(glm::vec4(avg * 0.01, ofGetFrameNum() * 0.0065)); noise_value = pow(noise_value, 2); auto noise_radius = 280 * noise_value; if (noise_radius < 180) { this->mesh.addVertex(triangle.getVertex(0)); this->mesh.addVertex(triangle.getVertex(1)); this->mesh.addVertex(triangle.getVertex(2)); } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * -0.3333); ofSetColor(255); this->mesh.draw(); ofSetLineWidth(1); this->yolk.drawWireframe(); ofSetColor(0); ofSetLineWidth(2); this->mesh.drawWireframe(); this->yolk.draw(); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |