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座標をNormalizeして球体状にする。
Normalize the coordinates to make a spherical shape.
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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) {}; ofTrueTypeFont font; int font_size; ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetLineWidth(3); ofEnableDepthTest(); this->font_size = 80; this->font.loadFont("fonts/Kazesawa-Bold.ttf", this->font_size, true, true, true); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(180); ofRotateY(ofGetFrameNum() * -1.5); string word = "0123456789"; int sample_count = 300; for(int i = 0; i < 60; i++) { int word_index = ofRandom(word.size()); auto radius = 200 + i - 30; glm::vec3 base_location = glm::vec3(0, (int)(ofRandom(600) + ofGetFrameNum() * ofRandom(3, 8)) % 600 - 300, 90); auto rotation_y = glm::rotate(glm::mat4(), ofRandom(-PI, PI), glm::vec3(0, 1, 0)); ofPath chara_path = this->font.getCharacterAsPoints(word[word_index], true, false); vector<ofPolyline> outline = chara_path.getOutline(); ofFill(); ofSetColor(0); ofBeginShape(); for (int outline_index = 0; outline_index < outline.size(); outline_index++) { if (outline_index != 0) { ofNextContour(true); } auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices(); for (auto& vertex : vertices) { auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * 0.5, 0); location.x *= -1; location = glm::vec4(base_location + location, 0) * rotation_y; location = glm::normalize(location) * radius; ofVertex(location); } } ofEndShape(true); ofNoFill(); ofSetColor(255); ofBeginShape(); for (int outline_index = 0; outline_index < outline.size(); outline_index++) { if (outline_index != 0) { ofNextContour(true); } auto vertices = outline[outline_index].getResampledByCount(sample_count).getVertices(); for (auto& vertex : vertices) { auto location = vertex - glm::vec3(this->font_size * 0.5, this->font_size * 0.5, 0); location.x *= -1; location = glm::vec4(base_location + location, 0) * rotation_y; location = glm::normalize(location) * radius; ofVertex(location); } } ofEndShape(true); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |