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天地をひっくり返す。
y += ofNoise() > 0.5 ? ofMap(-100, 100) : ofMap(100, -100)
Turn the top and bottom over.
+= ofNoise() > 0.5 ? ofMap(-100, 100) : ofMap(100, -100)
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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; float font_size; ofTrueTypeFont font; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(0); ofSetLineWidth(2); 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); string word = "ABCDEFGHEJKLMNOPQRSTUVWXYZ!"; int sample_count = 180; auto noise_param = ofRandom(1000); for (int i = 0; i < word.size(); i++) { ofPath chara_path = this->font.getCharacterAsPoints(word[i], true, false); vector<ofPolyline> outline = chara_path.getOutline(); ofFill(); ofSetColor(239); 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, 320); auto rotation_y = glm::rotate(glm::mat4(), (i * 13.5f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0)); location = glm::vec4(location, 0) * rotation_y; auto noise_value = ofNoise(noise_param, i * 0.5 + ofGetFrameNum() * 0.02); float param = noise_value; location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0); if (location.y > 0) { ofVertex(location - glm::vec3(0, 100, 0)); } } } ofEndShape(); ofNoFill(); ofSetColor(39); 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, 320); auto rotation_y = glm::rotate(glm::mat4(), (i * 13.5f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0)); location = glm::vec4(location, 0) * rotation_y; auto noise_value = ofNoise(noise_param, i * 0.5 + ofGetFrameNum() * 0.02); float param = noise_value; location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0); if (location.y > 0) { ofVertex(location - glm::vec3(0, 100, 0)); } } } ofEndShape(); } for (int i = 0; i < word.size(); i++) { ofPath chara_path = this->font.getCharacterAsPoints(word[i], true, false); vector<ofPolyline> outline = chara_path.getOutline(); ofFill(); ofSetColor(239); 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, 320); auto rotation_y = glm::rotate(glm::mat4(), (i * 13.5f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0)); location = glm::vec4(location, 0) * rotation_y; auto noise_value = ofNoise(noise_param, i * 0.5 + ofGetFrameNum() * 0.02); float param = noise_value; location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0); if (location.y < 0) { ofVertex(location + glm::vec3(0, 100, 0)); } } } ofEndShape(); ofNoFill(); ofSetColor(39); 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, 320); auto rotation_y = glm::rotate(glm::mat4(), (i * 13.5f) * (float)DEG_TO_RAD, glm::vec3(0, 1, 0)); location = glm::vec4(location, 0) * rotation_y; auto noise_value = ofNoise(noise_param, i * 0.5 + ofGetFrameNum() * 0.02); float param = noise_value; location += glm::vec3(0, ofMap(noise_value, 0, 1, -100, 100), 0); if (location.y < 0) { ofVertex(location + glm::vec3(0, 100, 0)); } } } ofEndShape(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |