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文字をドットで書いて、ドットのサイズを変化
Noisy dot character.
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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) {}; ofTrueTypeFont font; vector<glm::vec2> locations; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); this->font.loadFont("fonts/Kazesawa-Bold.ttf", 650, true, true, true); } //-------------------------------------------------------------- void ofApp::update() { vector<string> words = { "A", "B", "C", "D", "E", "F" }; if (ofGetFrameNum() % 60 == 0) { this->locations.clear(); ofFbo fbo; fbo.allocate(ofGetWidth(), ofGetHeight()); fbo.begin(); ofClear(0); ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); string word = words[(ofGetFrameNum() / 60) % words.size()]; this->font.drawString(word, this->font.stringWidth(word) * -0.5, this->font.stringHeight(word) * 0.5); fbo.end(); ofPixels pixels; fbo.readToPixels(pixels); int span = 20; for (int x = 0; x < fbo.getWidth(); x += span) { for (int y = 0; y < fbo.getHeight(); y += span) { if (pixels.getColor(x, y) != ofColor(0, 0)) { this->locations.push_back(glm::vec2(x, y)); } } } } } //-------------------------------------------------------------- void ofApp::draw() { for (auto& location : this->locations) { ofDrawCircle(location, ofMap(ofNoise(location.x * 0.003, location.y * 0.003 + ofGetFrameNum() * 0.03), 0, 1, 0, 11)); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |