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乱数発生器。
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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; float noise_step; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofSetLineWidth(2); ofEnableDepthTest(); this->font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true); this->word = "123456"; } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); if (ofGetFrameNum() % 30 < 20) { this->noise_step += ofMap(ofGetFrameNum() % 20, 0, 20, 0.3, 0.001); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); this->cam.setPosition(glm::vec3(0, 0, 800)); ofRotateY(ofGetFrameNum()); ofRotateX(215); int size = 65; for (int base_deg = 0; base_deg < 360; base_deg += 10) { ofPushMatrix(); ofRotateY(base_deg); int deg_span = 60; int deg_start = (int)ofMap(ofNoise(cos(base_deg * DEG_TO_RAD) * 0.8, sin(base_deg * DEG_TO_RAD) * 0.8, this->noise_step), 0, 1, -360, 360); for (int deg = deg_start; deg < deg_start + 360; deg += deg_span){ ofPath chara_path = this->font.getCharacterAsPoints(this->word[(int)ofMap(deg, deg_start, deg_start + 360, 0, this->word.size())], true, false); vector<ofPolyline> outline = chara_path.getOutline(); ofPushMatrix(); ofTranslate(0, 0, -300); ofRotateX(deg); ofFill(); ofSetColor(0); 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::vec3 location = vertex / 100 * size; location -= glm::vec3(size * 0.5, -size * 0.5, 60); ofVertex(location); } } ofEndShape(true); ofNoFill(); ofSetColor(255); 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::vec3 location = vertex / 100 * size; location -= glm::vec3(size * 0.5, -size * 0.5, 60); ofVertex(location); } } ofEndShape(true); ofPopMatrix(); } ofPopMatrix(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |