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Velocity visualize.
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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; int base_radius; int number_of_satellite; vector<glm::vec3> base_noise_seed_list; vector<vector<glm::vec3>> satellite_location_list; vector<vector<glm::vec2>> satellite_noise_seed_list; vector<glm::vec3> location_list; vector<glm::vec3> velocity_list; ofMesh frame; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofEnableDepthTest(); this->base_radius = 120; this->number_of_satellite = 2; for (int i = 0; i < 5; i++) { this->base_noise_seed_list.push_back(glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000))); auto s_location_list = vector<glm::vec3>(); auto s_noise_seed_list = vector<glm::vec2>(); for (int k = 0; k < this->number_of_satellite; k++) { s_location_list.push_back(glm::normalize(glm::vec3(ofRandom(-1, 1), ofRandom(-1, 1), ofRandom(-1, 1))) * this->base_radius * 1.2); s_noise_seed_list.push_back(glm::vec2(ofRandom(1000), ofRandom(1000))); } this->satellite_location_list.push_back(s_location_list); this->satellite_noise_seed_list.push_back(s_noise_seed_list); } this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { for (int i = 0; i < this->base_noise_seed_list.size(); i++) { auto base_location = glm::vec3( ofMap(ofNoise(this->base_noise_seed_list[i].x, (ofGetFrameNum() + 0) * 0.005), 0, 1, -350, 350), ofMap(ofNoise(this->base_noise_seed_list[i].y, (ofGetFrameNum() + 0) * 0.005), 0, 1, -350, 350), ofMap(ofNoise(this->base_noise_seed_list[i].z, (ofGetFrameNum() + 0) * 0.005), 0, 1, -350, 350) ); for (int k = 0; k < this->number_of_satellite; k++) { auto rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].x, (ofGetFrameNum() + 0) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0)); auto rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].y, (ofGetFrameNum() + 0) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0)); auto satellite_location = glm::vec4(this->satellite_location_list[i][k], 0) * rotation_y * rotation_x; auto next_base_location = glm::vec3( ofMap(ofNoise(this->base_noise_seed_list[i].x, (ofGetFrameNum() + 1) * 0.005), 0, 1, -350, 350), ofMap(ofNoise(this->base_noise_seed_list[i].y, (ofGetFrameNum() + 1) * 0.005), 0, 1, -350, 350), ofMap(ofNoise(this->base_noise_seed_list[i].z, (ofGetFrameNum() + 1) * 0.005), 0, 1, -350, 350) ); auto next_rotation_y = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].x, (ofGetFrameNum() + 1) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(0, 1, 0)); auto next_rotation_x = glm::rotate(glm::mat4(), ofMap(ofNoise(this->satellite_noise_seed_list[i][k].y, (ofGetFrameNum() + 1) * 0.005), 0, 1, -PI * 2, PI * 2), glm::vec3(1, 0, 0)); auto next_satellite_location = glm::vec4(this->satellite_location_list[i][k], 0) * rotation_y * rotation_x; auto location = base_location + satellite_location; auto next_location = next_base_location + next_satellite_location; auto distance = location - next_location; auto future = glm::vec3(satellite_location) + distance * 80; 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 - satellite_location; this->frame.addVertex(location); this->velocity_list.push_back(glm::normalize(future_distance) * glm::length(distance)); } } for (int i = 0; i < this->frame.getNumVertices(); i++) { this->frame.setVertex(i, this->frame.getVertex(i) + this->velocity_list[i]); } for (int i = this->velocity_list.size() - 1; i >= 0; i--) { if (glm::length(this->frame.getVertex(i)) > 720) { this->velocity_list.erase(this->velocity_list.begin() + i); this->frame.removeVertex(i); } } this->frame.clearIndices(); for (int i = 0; i < this->frame.getNumVertices(); i++) { for (int k = i + 1; k < this->frame.getNumVertices(); k++) { if (glm::distance(this->frame.getVertex(i), this->frame.getVertex(k)) < 50) { this->frame.addIndex(i); this->frame.addIndex(k); } } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum()); for (int i = 0; i < this->frame.getNumVertices(); i++) { ofDrawSphere(this->frame.getVertex(i), 2); } this->frame.drawWireframe(); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |