[ Video ]
[ About ]
Noisy belt.
[ Source ]
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 |
#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_seed; 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 84 85 86 87 88 89 90 91 92 93 94 95 96 97 |
#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetLineWidth(0.5); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); this->noise_seed = ofRandom(1000); this->frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); this->face.clear(); this->frame.clear(); auto base_seed = ofRandom(10000); for (int k = 0; k < 600; k++) { auto base_x = ofRandom(-100, ofGetWidth() + 100); auto base_location = glm::vec2(base_x, ofMap(ofNoise(base_seed, base_x * 0.003 + this->noise_seed), 0, 1, 100, ofGetHeight() - 100)); auto location = base_location + glm::vec2(ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0025), 0, 1, -60, 60), ofMap(ofNoise(ofRandom(1000), ofGetFrameNum() * 0.0025), 0, 1, -120, 120)); this->face.addVertex(glm::vec3(location, 0)); this->frame.addVertex(glm::vec3(location, 0)); ofColor color; color.setHsb((int)ofMap(location.x, 0, ofGetWidth(), 240, 240 + 255) % 255, 255, 255); this->face.addColor(ofColor(color, 64)); this->frame.addColor(color); } for (int i = 0; i < this->face.getNumVertices(); i++) { vector<int> near_index_list; auto location = this->face.getVertex(i); for (int k = 0; k < this->face.getNumVertices(); k++) { auto other = this->face.getVertex(k); auto distance = glm::distance(location, other); if (distance < 30) { near_index_list.push_back(k); } } if (near_index_list.size() > 3) { for (int k = 0; k < near_index_list.size() - 2; k++) { this->face.addIndex(i); this->face.addIndex(near_index_list[k]); this->face.addIndex(near_index_list[k + 1]); this->frame.addIndex(i); this->frame.addIndex(near_index_list[k]); this->frame.addIndex(i); this->frame.addIndex(near_index_list[k + 1]); } } } if (ofGetFrameNum() % 120 < 80) { this->noise_seed += ofMap(ofGetFrameNum() % 120, 0, 80, 0.03, 0); } } //-------------------------------------------------------------- void ofApp::draw() { this->face.draw(); this->frame.drawWireframe(); for (int i = 0; i < this->frame.getNumVertices(); i++) { ofSetColor(this->frame.getColor(i)); ofDrawCircle(this->frame.getVertex(i), 2); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |