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Mystic A.
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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; ofTrueTypeFont font; string word; vector<glm::vec3> font_location_list; vector<ofColor> base_color_list; vector<vector<glm::vec3>> log_list; vector<float> speed_list; vector<ofColor> color_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(0); ofNoFill(); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); this->font.loadFont("fonts/Kazesawa-Bold.ttf", 200, true, true, true); this->word = "A"; int sample_count = 300; vector<ofPath> word_path = this->font.getStringAsPoints(word, true, false); for (int word_index = 0; word_index < word_path.size(); word_index++) { vector<ofPolyline> outline = word_path[word_index].getOutline(); for (int outline_index = 0; outline_index < outline.size(); outline_index++) { outline[outline_index] = outline[outline_index].getResampledBySpacing(1); vector<glm::vec3> vertices = outline[outline_index].getVertices(); for (int i = 0; i < vertices.size(); i++) { this->font_location_list.push_back(vertices[i] + glm::vec3(this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5, 0)); } } } ofColor color; vector<int> hex_list = { 0x1f005c, 0x5b0060, 0x870160, 0xac255e, 0xca485c, 0xe16b5c, 0xf39060, 0xffb56b }; for (auto hex : hex_list) { color.setHex(hex); this->base_color_list.push_back(color); } } //-------------------------------------------------------------- void ofApp::update() { if (this->log_list.size() < 2500) { for (int i = 0; i < 60; i++) { int font_location_index = ofRandom(this->font_location_list.size()); vector<glm::vec3> log; log.push_back(this->font_location_list[font_location_index]); this->log_list.push_back(log); this->speed_list.push_back(ofRandom(3, 10)); this->color_list.push_back(this->base_color_list[(int)ofRandom(this->base_color_list.size())]); } } for (int i = this->log_list.size() - 1; i >= 0; i--) { if (glm::length(this->log_list[i].back()) > 360) { this->log_list.erase(this->log_list.begin() + i); this->speed_list.erase(this->speed_list.begin() + i); this->color_list.erase(this->color_list.begin() + i); continue; } auto radius = glm::length(this->log_list[i].back()); auto next = glm::normalize(this->log_list[i].back()) * (radius + this->speed_list[i]); this->log_list[i].push_back(next); while (this->log_list[i].size() > 30) { this->log_list[i].erase(this->log_list[i].begin()); } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(180); ofSetLineWidth(3); ofSetColor(this->base_color_list[this->base_color_list.size() - 1]); this->font.drawStringAsShapes(this->word, this->font.stringWidth(this->word) * -0.5, this->font.stringHeight(word) * 0.5); ofSetLineWidth(0.6); for (int i = 0; i < this->log_list.size(); i++) { auto alpha = 255.f; auto len = glm::length(this->log_list[i].back()); if (len > 300) { alpha = ofMap(len, 300, 380, 255, 0); } ofSetColor(ofColor(this->color_list[i], alpha)); ofBeginShape(); ofVertices(this->log_list[i]); ofEndShape(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |