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ラインジェネレーター。
Line generator.
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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<glm::vec3> noise_seed_list; vector<glm::vec3> location_list; vector<glm::vec3> velocity_list; vector<vector<glm::vec3>> log_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(0); ofSetColor(255); ofSetLineWidth(0.5); ofEnableDepthTest(); for (int i = 0; i < 5; i++) { this->noise_seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000))); } } //-------------------------------------------------------------- void ofApp::update() { for (auto& noise_seed : this->noise_seed_list) { auto location = glm::vec3( ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * 0.003), 0, 1, -300, 300), ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * 0.003), 0, 1, -300, 300), ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * 0.003), 0, 1, -300, 300) ); auto next = glm::vec3( ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + 1) * 0.003), 0, 1, -300, 300), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + 1) * 0.003), 0, 1, -300, 300), ofMap(ofNoise(noise_seed.z, (ofGetFrameNum() + 1) * 0.003), 0, 1, -300, 300) ); auto distance = location - next; distance *= 2; auto future = location + distance * 30; auto random_deg_1 = ofRandom(360); auto random_deg_2 = ofRandom(360); future += glm::vec3( 30 * cos(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD), 30 * sin(random_deg_1 * DEG_TO_RAD) * sin(random_deg_2 * DEG_TO_RAD), 30 * cos(random_deg_2 * DEG_TO_RAD) ); auto future_distance = future - location; this->location_list.push_back(location); this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance)); vector<glm::vec3> log; this->log_list.push_back(log); } for (int i = this->location_list.size() - 1; i > -1; i--) { auto tmp = this->location_list[i] + this->velocity_list[i]; this->location_list[i] = tmp; this->velocity_list[i] *= 1.01; this->log_list[i].push_back(tmp); if (glm::length(this->location_list[i]) > 720) { this->location_list.erase(this->location_list.begin() + i); this->velocity_list.erase(this->velocity_list.begin() + i); this->log_list.erase(this->log_list.begin() + i); } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 0.5); for (int i = 0; i < this->location_list.size(); i++) { for (int k = 0; k < this->log_list[i].size() - 1; k++) { ofDrawLine(this->log_list[i][k], this->log_list[i][k + 1]); } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |