[ Video ]
[ About ]
文字の輪。
Word ring.
[ Source ]
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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) {}; vector<glm::vec2> location_list; vector<float> size_list; vector<float> speed_list; vector<float> max_size_list; vector<float> index_list; vector<float> deg_list; vector<ofColor> color_list; vector<bool> flag_list; ofTrueTypeFont font; string word; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); this->font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true); this->word = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; } //-------------------------------------------------------------- void ofApp::update() { int base_radius = ofMap(ofNoise(ofGetFrameNum() * 0.01), 0, 1, 60, 420); for (int i = this->location_list.size() - 1; i >= 0; i--) { this->size_list[i] += this->speed_list[i]; if (this->size_list[i] > this->max_size_list[i]) { this->location_list.erase(this->location_list.begin() + i); this->size_list.erase(this->size_list.begin() + i); this->speed_list.erase(this->speed_list.begin() + i); this->max_size_list.erase(this->max_size_list.begin() + i); this->index_list.erase(this->index_list.begin() + i); this->deg_list.erase(this->deg_list.begin() + i); this->color_list.erase(this->color_list.begin() + i); this->flag_list.erase(this->flag_list.begin() + i); } } ofColor color; for (int i = 0; i < 12; i++) { int random_deg = ofRandom(360); int random_radius = base_radius + ofRandom(-10, 10); auto location = glm::vec2(random_radius * cos(random_deg * DEG_TO_RAD), random_radius * sin(random_deg * DEG_TO_RAD)); this->location_list.push_back(location); this->size_list.push_back(1); this->speed_list.push_back(ofRandom(0.4, 2)); this->max_size_list.push_back(ofRandom(5, 45)); this->index_list.push_back(ofRandom(this->word.size())); this->deg_list.push_back(ofRandom(360)); color.setHsb(ofRandom(255), 255, 255); this->color_list.push_back(color); this->flag_list.push_back(ofRandom(1) < 0.5); } } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); ofNoFill(); for (int i = 0; i < this->location_list.size(); i++) { this->flag_list[i] ? ofFill() : ofNoFill(); ofPath chara_path = this->font.getCharacterAsPoints(this->word[this->index_list[i]], true, false); vector<ofPolyline> outline = chara_path.getOutline(); auto rotation = glm::rotate(glm::mat4(), this->deg_list[i] * (float)DEG_TO_RAD, glm::vec3(0, 0, 1)); ofSetColor(this->color_list[i], ofMap(this->size_list[i], 1, this->max_size_list[i], 255, 30)); ofBeginShape(); for (int outline_index = 0; outline_index < outline.size(); outline_index++) { ofNextContour(true); auto vertices = outline[outline_index].getVertices(); for (auto& vertex : vertices) { glm::vec2 location = vertex / 100 * size_list[i] * 1.5; location -= glm::vec2(size_list[i] * 0.5, -size_list[i] * 0.5); location = glm::vec4(location, 0, 0) * rotation; ofVertex(location + location_list[i]); } } ofEndShape(true); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/Insta20220515