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サイズの異なる球体を線でつなぐ。
Connect spheres of different sizes with lines.
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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 base_mesh, draw_mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); ofEnableDepthTest(); auto ico_sphere = ofIcoSpherePrimitive(250, 3); this->base_mesh = ico_sphere.getMesh(); this->draw_mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { this->draw_mesh.clear(); ofRotateX(270); for (auto v : this->base_mesh.getVertices()) { auto rotation = glm::rotate(glm::mat4(), ofMap(ofNoise(glm::vec2(v.y * 0.001 + ofGetFrameNum() * 0.005)), 0, 1, -180, 180) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0)); auto tmp_v = glm::normalize(v) * 150; tmp_v = glm::vec4(tmp_v, 0) * rotation; this->draw_mesh.addVertex(v); this->draw_mesh.addVertex(tmp_v); this->draw_mesh.addIndex(this->draw_mesh.getNumVertices() - 1); this->draw_mesh.addIndex(this->draw_mesh.getNumVertices() - 2); this->draw_mesh.addColor(ofColor(0, 0, 255)); this->draw_mesh.addColor(ofColor(255, 0, 0)); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); int index = 0; for (auto& vertex : this->draw_mesh.getVertices()) { ofSetColor(this->draw_mesh.getColor(index++)); ofDrawSphere(vertex, 2); } this->draw_mesh.drawWireframe(); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |