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速度の可視化＆カメラ追従。
Velocity visualization & Camera tracking.
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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; glm::vec3 cam_position; ofMesh mesh; vector<glm::vec3> top_list; vector<glm::vec3> noise_seed_list; vector<glm::vec3> location_list; vector<ofColor> color_list; vector<glm::vec3> velocity_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofSetLineWidth(1.5); ofEnableDepthTest(); for (int i = 0; i < 12; i++) { this->noise_seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000))); } this->mesh.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { this->mesh.clear(); this->top_list.clear(); this->cam_position = glm::vec3( ofMap(ofNoise(this->noise_seed_list[0].x, (ofGetFrameNum() - 50) * 0.003), 0, 1, -300, 300), ofMap(ofNoise(this->noise_seed_list[0].y, (ofGetFrameNum() - 50) * 0.003), 0, 1, -300, 300), ofMap(ofNoise(this->noise_seed_list[0].z, (ofGetFrameNum() - 50) * 0.003), 0, 1, -300, 300) ); auto first = true; 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) ); this->top_list.push_back(location); 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)); first ? this->color_list.push_back(ofColor(239, 39, 39)) : this->color_list.push_back(ofColor(39)); first = false; } for (int i = this->location_list.size() - 1; i > -1; i--) { this->location_list[i] += this->velocity_list[i]; this->velocity_list[i] *= 1.01; 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->color_list.erase(this->color_list.begin() + i); } } for (int i = 0; i < this->location_list.size(); i++) { this->mesh.addVertex(this->location_list[i]); this->mesh.addColor(this->color_list[i]); } for (int i = 0; i < this->mesh.getNumVertices(); i++) { for (int k = i + 1; k < this->mesh.getNumVertices(); k++) { if (glm::distance(this->mesh.getVertex(i), this->mesh.getVertex(k)) < 50) { this->mesh.addIndex(i); this->mesh.addIndex(k); } } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.setPosition(this->cam_position + glm::vec3(0, 0, 250)); this->cam.lookAt(this->top_list[0]); this->cam.begin(); this->mesh.drawWireframe(); for (int i = 0; i < this->location_list.size(); i++) { ofSetColor(this->color_list[i]); ofDrawSphere(this->location_list[i], 1.5); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(1280, 720, OF_WINDOW); ofRunApp(new ofApp()); } |