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キモイ球。
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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, line; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofEnableDepthTest(); this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { this->face.clear(); this->line.clear(); float phi_deg_step = 0.25; float theta_deg_step = 0.25; float noise_threshold_1 = 0.42; float noise_threshold_2 = 0.58; float noise_span = 4; ofColor line_color = ofColor(239); for (float radius = 230; radius > 210; radius -= 2) { ofColor face_color; face_color.setHsb(ofMap(radius, 230, 210, 0, 255), 130, 255); for (float phi_deg = 0; phi_deg < 360; phi_deg += phi_deg_step) { for (float theta_deg = 0; theta_deg <= 180; theta_deg += theta_deg_step) { auto noise_value = ofNoise( cos(phi_deg * DEG_TO_RAD) * noise_span, sin(phi_deg * DEG_TO_RAD) * noise_span, cos(theta_deg * DEG_TO_RAD) * noise_span, radius * 0.025 + ofGetFrameNum() * 0.02); if (noise_value < noise_threshold_1 || noise_value > noise_threshold_2) { continue; } auto noise_value_1 = ofNoise( cos(phi_deg * DEG_TO_RAD) * noise_span, sin(phi_deg * DEG_TO_RAD) * noise_span, cos((theta_deg - theta_deg_step) * DEG_TO_RAD) * noise_span, radius * 0.025 + ofGetFrameNum() * 0.02); auto noise_value_2 = ofNoise( cos((phi_deg + phi_deg_step) * DEG_TO_RAD) * noise_span, sin((phi_deg + phi_deg_step) * DEG_TO_RAD) * noise_span, cos(theta_deg * DEG_TO_RAD) * noise_span, radius * 0.025 + ofGetFrameNum() * 0.02); auto noise_value_3 = ofNoise( cos((phi_deg - phi_deg_step) * DEG_TO_RAD) * noise_span, sin((phi_deg - phi_deg_step) * DEG_TO_RAD) * noise_span, cos(theta_deg * DEG_TO_RAD) * noise_span, radius * 0.025 + ofGetFrameNum() * 0.02); auto noise_value_4 = ofNoise( cos(phi_deg * DEG_TO_RAD) * noise_span, sin(phi_deg * DEG_TO_RAD) * noise_span, cos((theta_deg + theta_deg_step) * DEG_TO_RAD) * noise_span, radius * 0.025 + ofGetFrameNum() * 0.02); auto index = this->face.getNumVertices(); vector<glm::vec3> vertices; vertices.push_back(glm::vec3( radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD), radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD), radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD))); vertices.push_back(glm::vec3( radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD), radius * sin((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD), radius * cos((theta_deg - theta_deg_step * 0.5) * DEG_TO_RAD))); vertices.push_back(glm::vec3( radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD), radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg + phi_deg_step * 0.5) * DEG_TO_RAD), radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD))); vertices.push_back(glm::vec3( radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * cos((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD), radius * sin((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD) * sin((phi_deg - phi_deg_step * 0.5) * DEG_TO_RAD), radius * cos((theta_deg + theta_deg_step * 0.5) * DEG_TO_RAD))); this->face.addVertices(vertices); this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 3); this->face.addIndex(index + 0); this->face.addIndex(index + 3); this->face.addIndex(index + 2); if (noise_value_1 < noise_threshold_1 || noise_value_1 > noise_threshold_2) { this->line.addVertex(vertices[0]); this->line.addVertex(vertices[1]); this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2); this->line.addColor(line_color); this->line.addColor(line_color); } if (noise_value_2 < noise_threshold_1 || noise_value_2 > noise_threshold_2) { this->line.addVertex(vertices[0]); this->line.addVertex(vertices[2]); this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2); this->line.addColor(line_color); this->line.addColor(line_color); } if (noise_value_3 < noise_threshold_1 || noise_value_3 > noise_threshold_2) { this->line.addVertex(vertices[1]); this->line.addVertex(vertices[3]); this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2); this->line.addColor(line_color); this->line.addColor(line_color); } if (noise_value_4 < noise_threshold_1 || noise_value_4 > noise_threshold_2) { this->line.addVertex(vertices[2]); this->line.addVertex(vertices[3]); this->line.addIndex(this->line.getNumVertices() - 1); this->line.addIndex(this->line.getNumVertices() - 2); this->line.addColor(line_color); this->line.addColor(line_color); } for (int i = 0; i < vertices.size(); i++) { this->face.addColor(face_color); } } } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateX(270); ofRotateZ(ofGetFrameNum()); this->face.draw(); this->line.draw(); this->cam.end(); /* int start = 1; if (ofGetFrameNum() > start) { ostringstream os; os << setw(4) << setfill('0') << ofGetFrameNum() - start; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/cap/img_" + os.str() + ".jpg"); if (ofGetFrameNum() - start >= 25 * 20) { std::exit(1); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |