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湧き文字。
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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; ofMesh face; ofTrueTypeFont font; string word; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetLineWidth(2); ofEnableDepthTest(); this->font.loadFont("fonts/Kazesawa-Bold.ttf", 100, true, true, true); this->word = "water"; } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face.clear(); int radius_start = 10 - ofGetFrameNum() % 10; for (int radius = radius_start; radius <= 500; radius += 10) { for (int deg = 0; deg < 360; deg += 1) { auto z = radius > 200 ? 0 : ofMap(radius, 0, 200, -1 * pow(200 - radius, 1.1), 0); int next_radius = radius + 10; int next_z = next_radius > 200 ? 0 : ofMap(next_radius, 0, 200, -1 * pow(200 - next_radius, 1.1), 0); vector<glm::vec3> vertices; vertices.push_back(glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), z)); vertices.push_back(glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), z)); vertices.push_back(glm::vec3(next_radius * cos((deg + 1) * DEG_TO_RAD), next_radius * sin((deg + 1) * DEG_TO_RAD), next_z)); vertices.push_back(glm::vec3(next_radius * cos(deg * DEG_TO_RAD), next_radius * sin(deg * DEG_TO_RAD), next_z)); face.addVertices(vertices); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4); } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(-55); ofSetColor(0); this->face.draw(); for (int i = 0; i < 500; i++) { auto radius = (int)(ofRandom(500) + ofGetFrameNum() * ofRandom(4, 10)) % 500; auto deg = ofRandom(360); auto size = ofRandom(10, 30); auto rotation_deg = ofRandom(360); auto rotation_z = glm::rotate(glm::mat4(), rotation_deg * (float)DEG_TO_RAD, glm::vec3(0, 0, 1)); ofPushMatrix(); ofTranslate(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0); ofPath chara_path = this->font.getCharacterAsPoints(this->word[ofRandom(this->word.size())], true, false); vector<ofPolyline> outline = chara_path.getOutline(); 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, 0); location = glm::vec4(location, 0) * rotation_z; int len = glm::length(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)) + location); location.z = len > 200 ? 0 : ofMap(len, 0, 200, -1 * pow(200 - len, 1.1), 0); ofVertex(location + glm::vec3(0, 0, 2)); } } 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, 0); location = glm::vec4(location, 0) * rotation_z; int len = glm::length(glm::vec2(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD)) + location); location.z = len > 200 ? 0 : ofMap(len, 0, 200, -1 * pow(200 - len, 1.1), 0); ofVertex(location + glm::vec3(0, 0, 2)); } } ofEndShape(true); ofPopMatrix(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |