[ Video ]
[ About ]
File colors.
[ Source ]
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 |
#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) {}; }; |
|
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 98 99 100 101 102 103 |
#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_MULTIPLY); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWidth() * 0.5, ofGetHeight() * 0.5); ofColor color; vector<ofColor> color_list; vector<int> hex_list = { 0xef476f, 0xffd166, 0x06d6a0, 0x118ab2, 0x073b4c }; for (auto hex : hex_list) { color.setHex(hex); color_list.push_back(color); } for (int k = 0; k < 15; k++) { auto noise_seed = glm::vec2(ofRandom(1000), ofRandom(1000)); color = color_list[k % color_list.size()]; ofMesh mesh; vector<glm::vec3> right, left; glm::vec3 last_location; float last_theta; int len = 50; int head_size = 15; for (int i = 0; i < len; i++) { auto location = glm::vec3(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + i) * 0.005), 0, 1, -350, 350), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + i) * 0.005), 0, 1, -350, 350), 0); auto next = glm::vec3(ofMap(ofNoise(noise_seed.x, (ofGetFrameNum() + i + 1) * 0.005), 0, 1, -350, 350), ofMap(ofNoise(noise_seed.y, (ofGetFrameNum() + i + 1) * 0.005), 0, 1, -350, 350), 0); auto direction = next - location; auto theta = atan2(direction.y, direction.x); right.push_back(location + glm::vec3(ofMap(i, 0, len, 0, head_size) * cos(theta + PI * 0.5), ofMap(i, 0, len, 0, head_size) * sin(theta + PI * 0.5), 0)); left.push_back(location + glm::vec3(ofMap(i, 0, len, 0, head_size) * cos(theta - PI * 0.5), ofMap(i, 0, len, 0, head_size) * sin(theta - PI * 0.5), 0)); last_location = location; last_theta = theta; } for (int i = 0; i < right.size(); i++) { mesh.addVertex(left[i]); mesh.addVertex(right[i]); mesh.addColor(ofColor(color, ofMap(i, 0, len, 0, 255))); mesh.addColor(ofColor(color, ofMap(i, 0, len, 0, 255))); } for (int i = 0; i < mesh.getNumVertices() - 2; i += 2) { mesh.addIndex(i + 0); mesh.addIndex(i + 1); mesh.addIndex(i + 3); mesh.addIndex(i + 0); mesh.addIndex(i + 2); mesh.addIndex(i + 3); } auto tmp_head_size = ofMap(len - 2, 0, len, 0, head_size); auto tmp_alpha = ofMap(len - 2, 0, len , 0, 255); mesh.addVertex(last_location); mesh.addColor(ofColor(color, tmp_alpha)); int index = mesh.getNumVertices(); for (auto theta = last_theta - PI * 0.5; theta <= last_theta + PI * 0.5; theta += PI / 20) { mesh.addVertex(last_location + glm::vec3(tmp_head_size * cos(theta), tmp_head_size * sin(theta), 0)); mesh.addColor(ofColor(color, tmp_alpha)); } for (int i = index; i < mesh.getNumVertices() - 1; i++) { mesh.addIndex(index); mesh.addIndex(i + 0); mesh.addIndex(i + 1); } mesh.draw(); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |