[ Video ]
[ About ]
円を分割する。を色を交互に変えながら見比べる。
Circles was splitted.
[ Source ]
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 |
#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) {}; ofMesh face, frame; }; |
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 |
#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofSetLineWidth(1.5); this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { this->face.clear(); this->frame.clear(); int radius = 60; int len = 40; int deg_span = 8; int x_span = 256; int y_span = 240; bool flg = true; for (int x = x_span * 0.5; x < ofGetWidth(); x += x_span) { for (int y = y_span * 0.5; y < ofGetHeight(); y += y_span) { for (int deg = 0; deg < 360; deg += deg_span) { int index = this->face.getNumVertices(); auto noise_param = glm::vec2(x + cos((deg + deg_span * 0.5) * DEG_TO_RAD), y + sin((deg + deg_span * 0.5) * DEG_TO_RAD)); auto noise_value = ofNoise(noise_param.x, noise_param.y, ofGetFrameNum() * 0.01); auto tmp_radius = radius; if (noise_value > 0.75) { tmp_radius += ofMap(noise_value, 0.75, 1, 0, 40); } if (noise_value < 0.25) { tmp_radius -= ofMap(noise_value, 0.25, 0, 0, 40); } vector<glm::vec3> vertices; vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius + len * 0.5) * cos(deg * DEG_TO_RAD), (tmp_radius + len * 0.5) * sin(deg * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius + len * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (tmp_radius + len * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius - len * 0.5) * cos((deg + deg_span) * DEG_TO_RAD), (tmp_radius - len * 0.5) * sin((deg + deg_span) * DEG_TO_RAD), 0)); vertices.push_back(glm::vec3(x, y, 0) + glm::vec3((tmp_radius - len * 0.5) * cos(deg * DEG_TO_RAD), (tmp_radius - len * 0.5) * sin(deg * DEG_TO_RAD), 0)); this->face.addVertices(vertices); this->frame.addVertices(vertices); this->face.addIndex(index + 0); this->face.addIndex(index + 1); this->face.addIndex(index + 2); this->face.addIndex(index + 0); this->face.addIndex(index + 2); this->face.addIndex(index + 3); this->frame.addIndex(index + 0); this->frame.addIndex(index + 1); this->frame.addIndex(index + 1); this->frame.addIndex(index + 2); this->frame.addIndex(index + 2); this->frame.addIndex(index + 3); this->frame.addIndex(index + 3); this->frame.addIndex(index + 0); for (int i = 0; i < vertices.size(); i++) { this->face.addColor(flg ? ofColor(39) : ofColor(239)); this->frame.addColor(flg ? ofColor(239) : ofColor(39)); } } flg = !flg; } } } //-------------------------------------------------------------- void ofApp::draw() { this->face.draw(); this->frame.drawWireframe(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(1280, 720, OF_WINDOW); ofRunApp(new ofApp()); } |