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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, frame; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(255); ofSetLineWidth(1.5); ofEnableDepthTest(); this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face.clear(); this->frame.clear(); int span = 10; float threshold = 0.5; float frame_param = ofGetFrameNum() * 0.05; float coordinate_param = 0.0065; int len = 300; ofColor line_color(255); int z = len + span * 0.5; float angle; glm::highp_mat4 rotation, twist; for (int i = 0; i <= 6; i++) { for (int x = -len; x <= len; x += span) { for (int y = -len; y <= len; y += span) { if (i <= 4) { angle = PI * 0.5 * i; rotation = glm::rotate(glm::mat4(), angle, glm::vec3(0, 1, 0)); } if (i == 5) { angle = PI * 0.5; rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0)); } if (i == 6) { angle = PI * 0.5 * 3; rotation = glm::rotate(glm::mat4(), angle, glm::vec3(1, 0, 0)); } auto index = this->face.getNumVertices(); vector<glm::vec3> vertices; vertices.push_back(glm::vec4(x - span * 0.5, y - span * 0.5, z, 0) * rotation); vertices.push_back(glm::vec4(x + span * 0.5, y - span * 0.5, z, 0) * rotation); vertices.push_back(glm::vec4(x + span * 0.5, y + span * 0.5, z, 0) * rotation); vertices.push_back(glm::vec4(x - span * 0.5, y + span * 0.5, z, 0) * rotation); for (auto& vertex : vertices) { auto noise_value = ofNoise(vertex.y * 0.0005 + ofGetFrameNum() * 0.02); if (noise_value < 0.43) { noise_value = ofMap(noise_value, 0, 0.43, -1, 0); } else if (noise_value > 0.57) { noise_value = ofMap(noise_value, 0.57, 1, 0, 1); } else { noise_value = 0; } auto twist_rad = ofMap(noise_value, -1, 1, PI * -4, PI * 4); twist = glm::rotate(glm::mat4(), twist_rad, glm::vec3(0, 1, 0)); vertex = glm::vec4(vertex, 0) * twist; } this->face.addVertices(vertices); this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2); this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3); if (x == -len) { this->frame.addVertex(vertices[0]); this->frame.addVertex(vertices[3]); this->frame.addColor(line_color); this->frame.addColor(line_color); this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2); } if (y == len) { this->frame.addVertex(vertices[2]); this->frame.addVertex(vertices[3]); this->frame.addColor(line_color); this->frame.addColor(line_color); this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2); } if (x == len) { this->frame.addVertex(vertices[1]); this->frame.addVertex(vertices[2]); this->frame.addColor(line_color); this->frame.addColor(line_color); this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2); } if (y == -len) { this->frame.addVertex(vertices[0]); this->frame.addVertex(vertices[1]); this->frame.addColor(line_color); this->frame.addColor(line_color); this->frame.addIndex(this->frame.getNumVertices() - 1); this->frame.addIndex(this->frame.getNumVertices() - 2); } } } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); //ofRotateY(ofGetFrameNum()); this->frame.draw(); ofSetColor(0); this->face.draw(); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |