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トルネード！
Tornade.
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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); ofSetColor(39); ofSetLineWidth(3); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(270); auto radius = 500; for (int i = 0; i < 150; i++) { auto deg_speed = ofRandom(2, 4); auto deg_param = ofRandom(360) + ofGetFrameNum() * deg_speed; auto z_speed = ofRandom(2, 10); auto z_param = ofRandom(600) + ofGetFrameNum() * z_speed; glm::vec3 prev_location; for (int k = 0; k < 10; k++) { auto deg = deg_param + k * deg_speed; auto z = (int)(z_param + k * z_speed) % 600 - 300; auto location = glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z); auto alpha = 255; if (location.y > 0) { alpha = ofMap(location.y, 0, 500, 255, 64); } ofSetColor(39, alpha); if (prev_location != glm::vec3() && glm::distance(prev_location, location) < 300) { ofDrawLine(prev_location, location); } prev_location = location; } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |