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2面。
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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) {}; void setBoxToMesh(ofMesh& face_target, glm::vec3 location, float size); void setBoxToMesh(ofMesh& face_target, glm::vec3 location, float height, float width, float depth); ofEasyCam cam; ofMesh face; vector<glm::vec3> location_list; vector<ofColor> color_list; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofEnableDepthTest(); float span = 0.5; for (float x = -200; x <= 200; x += span) { for (float y = -200; y <= 200; y += span) { for (float z = -200; z <= 200; z += span) { if (abs(x) >= 200 || abs(y) >= 200 || abs(z) >= 200) { this->location_list.push_back(glm::vec3(x, y, z)); } } } } } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face.clear(); float size = 0.5; for (int i = 0; i < this->location_list.size(); i++) { this->setBoxToMesh(this->face, this->location_list[i], size); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 1.44); this->face.draw(); this->cam.end(); /* // ffmpeg -i img_%04d.jpg aaa.mp4 int start = 2; if (ofGetFrameNum() > start) { std::ostringstream os; os << std::setw(4) << std::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); } } */ } //-------------------------------------------------------------- void ofApp::setBoxToMesh(ofMesh& face_target, glm::vec3 location, float size) { this->setBoxToMesh(face_target, location, size, size, size); } //-------------------------------------------------------------- void ofApp::setBoxToMesh(ofMesh& face_target, glm::vec3 location, float height, float width, float depth) { auto noise_value = ofNoise(glm::vec4(location.x * 0.023, location.y * 0.001, location.z * 0.023, ofGetFrameNum() * 0.01)); if (noise_value < 0.47 || noise_value > 0.53) { return; } ofColor face_color(128, 128, 255); int face_index = face_target.getNumVertices(); vector<glm::vec3> vertices; vertices.push_back(glm::vec3(width * -0.5, height * 0.5, depth * -0.5)); vertices.push_back(glm::vec3(width * 0.5, height * 0.5, depth * -0.5)); vertices.push_back(glm::vec3(width * 0.5, height * 0.5, depth * 0.5)); vertices.push_back(glm::vec3(width * -0.5, height * 0.5, depth * 0.5)); vertices.push_back(glm::vec3(width * -0.5, height * -0.5, depth * -0.5)); vertices.push_back(glm::vec3(width * 0.5, height * -0.5, depth * -0.5)); vertices.push_back(glm::vec3(width * 0.5, height * -0.5, depth * 0.5)); vertices.push_back(glm::vec3(width * -0.5, height * -0.5, depth * 0.5)); for (auto& vertex : vertices) { face_target.addVertex(location + vertex * 0.99); } face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 5); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 1); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 6); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 2); face_target.addIndex(face_index + 3); face_target.addIndex(face_index + 7); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 4); face_target.addIndex(face_index + 0); face_target.addIndex(face_index + 3); for (int i = 0; i < 8; i++) { face_target.addColor(face_color); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/f49bc5004dd8e885009b4c0880398e3d87389e56