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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; float noise_param; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetLineWidth(2); ofEnableDepthTest(); this->line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { auto param = ofGetFrameNum() % 50; if (param > 12 && param < 38) { if (param < 25) { this->noise_param += ofMap(param, 12, 25, 0, 0.5); } else if (param > 25) { this->noise_param += ofMap(param, 25, 38, 0.5, 0); } } this->face.clear(); this->line.clear(); float threshold_1 = 0.38; float threshold_2 = 0.62; float deg_span = 0.25; float z_span = 1; float radius = 320; float noise_span = 0.005; for (float deg = 0; deg < 360; deg += deg_span) { for (float z = -500; z < 500; z += z_span) { auto noise_value = ofNoise(glm::vec3(radius * cos(deg * DEG_TO_RAD) * noise_span, radius * sin(deg * DEG_TO_RAD) * noise_span, z * noise_span + noise_param)); if (noise_value <= threshold_1 || noise_value >= threshold_2) { continue; } auto noise_1 = ofNoise(glm::vec3(radius * cos((deg - deg_span) * DEG_TO_RAD) * noise_span, radius * sin((deg - deg_span) * DEG_TO_RAD) * noise_span, z * noise_span + noise_param)); auto noise_2 = ofNoise(glm::vec3(radius * cos(deg * DEG_TO_RAD) * noise_span, radius * sin(deg * DEG_TO_RAD) * noise_span, (z + z_span) * noise_span + noise_param)); auto noise_3 = ofNoise(glm::vec3(radius * cos(deg * DEG_TO_RAD) * noise_span, radius * sin(deg * DEG_TO_RAD) * noise_span, (z - z_span) * noise_span + noise_param)); auto noise_4 = ofNoise(glm::vec3(radius * cos((deg + deg_span) * DEG_TO_RAD) * noise_span, radius * sin((deg + deg_span) * DEG_TO_RAD) * noise_span, z * noise_span + noise_param)); auto index = this->face.getNumVertices(); vector<glm::vec3> vertices; vertices.push_back(glm::vec3(radius * cos((deg - deg_span * 0.5) * DEG_TO_RAD), radius * sin((deg - deg_span * 0.5) * DEG_TO_RAD), z - z_span * 0.5)); vertices.push_back(glm::vec3(radius * cos((deg + deg_span * 0.5) * DEG_TO_RAD), radius * sin((deg + deg_span * 0.5) * DEG_TO_RAD), z - z_span * 0.5)); vertices.push_back(glm::vec3(radius * cos((deg - deg_span * 0.5) * DEG_TO_RAD), radius * sin((deg - deg_span * 0.5) * DEG_TO_RAD), z + z_span * 0.5)); vertices.push_back(glm::vec3(radius * cos((deg + deg_span * 0.5) * DEG_TO_RAD), radius * sin((deg + deg_span * 0.5) * DEG_TO_RAD), z + z_span * 0.5)); 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 + 2); this->face.addIndex(index + 3); ofColor face_color(0); for (int i = 0; i < 4; i++) { this->face.addColor(face_color); } ofColor line_color(255); if (noise_1 <= threshold_1 || noise_1 >= 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_2 <= threshold_1 || noise_2 >= 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); } if (noise_3 <= threshold_1 || noise_3 >= 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_4 <= threshold_1 || noise_4 >= 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); } } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); this->cam.setPosition(0, 0, 1200); ofRotateX(90); ofRotateZ(ofGetFrameNum() * 1.44); this->line.draw(); this->face.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()); } |