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正四面体。
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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; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(39); ofSetColor(239); ofEnableDepthTest(); //ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum()); auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); for (int param = 50; param <= 350; param += 50) { ofMesh mesh; int angle_x = ofMap(ofNoise(noise_seed.x, ofGetFrameNum() * -0.006 + param * 0.0003), 0, 1, -180, 180); auto rotation_x = glm::rotate(glm::mat4(), angle_x * (float)DEG_TO_RAD, glm::vec3(1, 0, 0)); int angle_y = ofMap(ofNoise(noise_seed.y, ofGetFrameNum() * -0.006 + param * 0.0003), 0, 1, -180, 180); auto rotation_y = glm::rotate(glm::mat4(), angle_y * (float)DEG_TO_RAD, glm::vec3(0, 1, 0)); int angle_z = ofMap(ofNoise(noise_seed.z, ofGetFrameNum() * -0.006 + param * 0.0003), 0, 1, -180, 180); auto rotation_z = glm::rotate(glm::mat4(), angle_y * (float)DEG_TO_RAD, glm::vec3(0, 0, 1)); vector<glm::vec3> vertices; vertices.push_back(glm::vec3(param, param, param)); vertices.push_back(glm::vec3(param, -param, -param)); vertices.push_back(glm::vec3(-param, param, -param)); vertices.push_back(glm::vec3(-param, -param, param)); for (auto& vertex : vertices) { vertex = glm::vec4(vertex, 0) * rotation_y * rotation_x; } mesh.addVertices(vertices); mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(2); mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(3); mesh.addIndex(0); mesh.addIndex(2); mesh.addIndex(3); mesh.addIndex(1); mesh.addIndex(2); mesh.addIndex(3); ofSetLineWidth(ofMap(param, 50, 350, 3, 0.5)); mesh.drawWireframe(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |