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アルファベット・ボール。
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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; int font_size; vector<char> charactor_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetWindowTitle("openFrameworks"); ofSetFrameRate(30); ofBackground(0); ofSetColor(255); ofNoFill(); ofSetLineWidth(2); ofEnableDepthTest(); this->font_size = 55; this->font.loadFont("fonts/msgothic.ttc", this->font_size, true, true, true); this->charactor_list = { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', '!' }; } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 0.5); ofRotateX(ofGetFrameNum() * 0.5); int sample_count = 60; ofColor color; for (int i = 0; i < 450; i++) { ofPushMatrix(); ofRotateZ(ofRandom(360)); ofRotateY(ofRandom(360)); ofRotateX(ofRandom(360)); auto z = ofRandom(250, 280); auto b = z > 265 ? 255 : ofMap(z, 265, 280, 172, 255); color.setHsb(ofRandom(255), 255, b); ofSetColor(color); ofPath path = this->font.getCharacterAsPoints(this->charactor_list[(int)ofRandom(this->charactor_list.size())], true, false); vector<ofPolyline> outline = path.getOutline(); auto frame_param = (int)ofRandom(sample_count * 2) + ofGetFrameNum() * (int)ofRandom(1, 3); for (int outline_index = 0; outline_index < outline.size(); outline_index++) { outline[outline_index] = outline[outline_index].getResampledByCount(sample_count); vector<glm::vec3> vertices = outline[outline_index].getVertices(); ofBeginShape(); for (int vertices_index = 0; vertices_index < vertices.size(); vertices_index++) { glm::vec3 vertex = glm::vec3(this->font_size * 0.5, this->font_size * 0.5, z) + glm::vec3(vertices[vertices_index].x, vertices[vertices_index].y, vertices[vertices_index].z); if (frame_param % (sample_count * 2) < sample_count) { if (vertices_index < frame_param % sample_count) { ofVertex(vertex); } } else { if (vertices_index > frame_param % sample_count) { ofVertex(vertex); } } if (vertices_index == frame_param % sample_count) { ofFill(); ofDrawCircle(vertex, 2); ofNoFill(); } } ofEndShape(); } } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |