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ランダムウォークが通った軌跡の六角形を回転させる。
Rotate the hexagon of the trajectory that the random walk went through.
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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) {}; void setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, glm::vec3 deg, ofColor face_color, ofColor frame_color); vector<glm::vec3> location_list; vector<int> life_list; vector<float> noise_param_list; ofEasyCam cam; ofMesh face, frame; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(255); ofSetLineWidth(2); ofEnableDepthTest(); ofFbo fbo; ofPixels pixels; fbo.allocate(ofGetWidth(), ofGetHeight()); fbo.begin(); ofClear(0); ofTrueTypeFont font; font.loadFont("fonts/Kazesawa-Extrabold.ttf", 250, true, true, true); string word = "HEX"; font.drawString(word, ofGetWidth() * 0.5 - font.stringWidth(word) * 0.5, ofGetHeight() * 0.5 + font.stringHeight(word) * 0.5); fbo.end(); fbo.readToPixels(pixels); auto radius = 9; auto x_span = radius * sqrt(3); auto flg = true; for (auto y = 0; y < ofGetWidth(); y += radius * 1.5) { for (int x = 0; x < ofGetHeight(); x += x_span) { glm::vec3 location; if (pixels.getColor(x, y) != ofColor(0, 0)) { if (flg) { location = glm::vec3(x, y, 0); } else { location = glm::vec3(x + (x_span / 2), y, 0); } this->location_list.push_back(location - glm::vec3(ofGetWidth() * 0.5, ofGetHeight() * 0.5, 0)); this->life_list.push_back(0); this->noise_param_list.push_back(ofRandom(1000)); } } flg = !flg; } this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face.clear(); this->frame.clear(); for (int i = 0; i < this->location_list.size(); i++) { this->life_list[i] = this->life_list[i] > 0 ? this->life_list[i] - 1 : 0; if (this->life_list[i] > 0) { this->noise_param_list[i] += ofMap(this->life_list[i], 0, 100, 0.05, 0.1); } } for (int i = 0; i < 12; i++) { auto noise_location = glm::vec3(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -360, 360), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.01), 0, 1, -300, 300), 0); for (int k = 0; k < this->location_list.size(); k++) { if (glm::distance(noise_location, this->location_list[k]) < 20) { this->life_list[k] = this->life_list[k] < 50 ? this->life_list[k] + 4 : 50; } } } for (int i = 0; i < this->location_list.size(); i++) { auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); auto noise_deg = glm::vec3( ofMap(ofNoise(glm::vec4(this->location_list[i] * 0.005, noise_seed.x + this->noise_param_list[i])), 0, 1, -360, 360), ofMap(ofNoise(glm::vec4(this->location_list[i] * 0.005, noise_seed.y + this->noise_param_list[i])), 0, 1, -360, 360), ofMap(ofNoise(glm::vec4(this->location_list[i] * 0.005, noise_seed.z + this->noise_param_list[i])), 0, 1, -360, 360)); auto height = 4; ofColor location_color; location_color.setHsb((int)ofMap(ofNoise(glm::vec4(this->location_list[i], this->noise_param_list[i])), 0, 1, 0, 512) % 255, 130, 255); if (this->life_list[i] > 10) { this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 8, height, noise_deg, location_color, ofColor(0)); } else if (this->life_list[i] > 0) { location_color.setHsb(location_color.getHue(), ofMap(this->life_list[i], 0, 10, 0, 130), location_color.getBrightness()); this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 8, height, noise_deg * ofMap(this->life_list[i], 0, 10, 0, 1), location_color, ofColor(0)); } else { this->setHexagonToMesh(this->face, this->frame, this->location_list[i], 8, height, glm::vec3(), ofColor(255), ofColor(0)); } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(180); this->face.draw(); this->frame.draw(); this->cam.end(); } //-------------------------------------------------------------- void ofApp::setHexagonToMesh(ofMesh& face_target, ofMesh& frame_target, glm::vec3 location, float radius, float height, glm::vec3 deg, ofColor face_color, ofColor frame_color) { auto rotation_x = glm::rotate(glm::mat4(), deg.x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0)); auto rotation_y = glm::rotate(glm::mat4(), deg.y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0)); auto rotation_z = glm::rotate(glm::mat4(), deg.z * (float)DEG_TO_RAD, glm::vec3(0, 0, 1)); for (int deg = 90; deg < 450; deg += 60) { auto face_radius = radius - 0.5; auto face_index = face_target.getNumVertices(); vector<glm::vec3> vertices; vertices.push_back(glm::vec3(0, 0, 0)); vertices.push_back(glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3(0, 0, height)); vertices.push_back(glm::vec3(face_radius * cos((deg + 60) * DEG_TO_RAD), face_radius * sin((deg + 60) * DEG_TO_RAD), height)); vertices.push_back(glm::vec3(face_radius * cos(deg * DEG_TO_RAD), face_radius * sin(deg * DEG_TO_RAD), height)); for (auto& vertex : vertices) { vertex = location + glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x; } face_target.addVertices(vertices); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); auto frame_index = frame_target.getNumVertices(); vertices.clear(); vertices.push_back(glm::vec3(0, 0, 0)); vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3(0, 0, height)); vertices.push_back(glm::vec3(radius * cos((deg + 60) * DEG_TO_RAD), radius * sin((deg + 60) * DEG_TO_RAD), height)); vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), height)); for (auto& vertex : vertices) { vertex = location + glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x; } frame_target.addVertices(vertices); frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 4); frame_target.addIndex(frame_index + 5); frame_target.addIndex(frame_index + 1); frame_target.addIndex(frame_index + 5); frame_target.addIndex(frame_index + 2); frame_target.addIndex(frame_index + 4); for (int i = 0; i < vertices.size(); i++) { face_target.addColor(face_color); frame_target.addColor(frame_color); } } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |