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放射線状の線。
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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) {}; float noise_step; ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetWindowTitle("openFrameworks"); ofSetFrameRate(25); ofBackground(39); ofSetColor(239); ofNoFill(); ofEnableDepthTest(); this->noise_step = ofRandom(1000); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->noise_step -= 0.005; } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 0.72); ofColor color; auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); int size_span = 10; vector<glm::vec3> vertices, before_verices; for (int size = 20; size < 3000; size += size_span) { auto x_value = ofNoise(noise_seed.x, size * 0.00015 + this->noise_step); auto y_value = ofNoise(noise_seed.y, size * 0.00015 + this->noise_step); auto z_value = ofNoise(noise_seed.z, size * 0.00015 + this->noise_step); auto x_deg = x_value < 0.5 ? ofMap(x_value, 0, 0.5, -270, 0) : x_value > 0.5 ? ofMap(x_value, 0.5, 1, 0, 270) : 0; auto y_deg = y_value < 0.5 ? ofMap(y_value, 0, 0.5, -270, 0) : y_value > 0.5 ? ofMap(y_value, 0.5, 1, 0, 270) : 0; auto z_deg = z_value < 0.5 ? ofMap(z_value, 0, 0.5, -270, 0) : z_value > 0.5 ? ofMap(z_value, 0.5, 1, 0, 270) : 0; auto rotation_x = glm::rotate(glm::mat4(), (float)(x_deg * DEG_TO_RAD), glm::vec3(1, 0, 0)); auto rotation_y = glm::rotate(glm::mat4(), (float)(y_deg * DEG_TO_RAD), glm::vec3(0, 1, 0)); auto rotation_z = glm::rotate(glm::mat4(), (float)(z_deg * DEG_TO_RAD), glm::vec3(0, 0, 1)); vertices.clear(); vertices.push_back(glm::vec3(size * 0.5, size * 0.5, size * 0.5)); vertices.push_back(glm::vec3(size * 0.5, -size * 0.5, size * 0.5)); vertices.push_back(glm::vec3(-size * 0.5, size * 0.5, size * 0.5)); vertices.push_back(glm::vec3(-size * 0.5, -size * 0.5, size * 0.5)); vertices.push_back(glm::vec3(size * 0.5, size * 0.5, -size * 0.5)); vertices.push_back(glm::vec3(size * 0.5, -size * 0.5, -size * 0.5)); vertices.push_back(glm::vec3(-size * 0.5, size * 0.5, -size * 0.5)); vertices.push_back(glm::vec3(-size * 0.5, -size * 0.5, -size * 0.5)); for (auto& vertex : vertices) { vertex = glm::vec4(vertex, 0) * rotation_z * rotation_y * rotation_x; } ofColor color(ofMap(size, 30, 3000, 239, 39)); ofSetColor(color); for (int i = 0; i < 8; i++) { if (before_verices.size() <= 0) { break; } ofDrawLine(vertices[i], before_verices[i]); } before_verices = vertices; } this->cam.end(); /* // ffmpeg -i img_%04d.jpg aaa.mp4 int start = 400; 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); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |
[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/0c3a1190213669d797c3f201b7803dbc0b2f1fc5