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トルネード。
Tornado.
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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 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) {}; 	ofEasyCam cam; };  | 
					
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						#include "ofApp.h"	 //-------------------------------------------------------------- void ofApp::setup() { 	ofSetFrameRate(60); 	ofSetWindowTitle("openFrameworks"); 	ofBackground(239); 	ofSetLineWidth(5); 	ofNoFill(); 	ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { 	this->cam.begin(); 	auto radius = 300; 	auto deg = 0; 	auto deg_param = (int)ofGetFrameNum() * 12 % 1560 - 180; 	vector<glm::vec3> vertices; 	for (auto z = -300.f;  z <= 300; z += 0.5) { 		vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z)); 		deg += 1; 		if (deg % 30 == 0) { 			if (deg >= deg_param - 180 && deg <= deg_param + 180) { 				vertices.push_back(glm::vec3(0, 0, z)); 				ofFill(); 				ofSetColor(239); 				ofBeginShape(); 				ofVertices(vertices); 				ofEndShape(true); 				ofNoFill(); 				ofSetColor(39); 				ofBeginShape(); 				ofVertices(vertices); 				ofEndShape(true); 			} 			vertices.clear(); 		} 	} 	this->cam.end(); } //-------------------------------------------------------------- int main() { 	ofSetupOpenGL(720, 720, OF_WINDOW); 	ofRunApp(new ofApp()); }  | 
					
[ Link ]
https://github.com/junkiyoshi/openframeworks20190901