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色棒。
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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) {}; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetLineWidth(1.5); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { ofTranslate(ofGetWindowSize() * 0.5); auto radius = 200; int deg_span = 4; vector<ofColor> color_list; vector<float> noise_seed_list; ofColor color; for (int i = 0; i < 6; i++) { color.setHsb(ofMap(i, 0, 6, 0, 255), 150, 230); color_list.push_back(color); } for (int i = 0; i < color_list.size(); i++) { auto noise_seed = ofRandom(1000); noise_seed_list.push_back(noise_seed + ofRandom(1000, 2000)); } for (int deg = 0; deg < 360; deg += deg_span) { int param = deg % (deg_span * color_list.size()); auto len = 10; for (int i = 0; i < color_list.size(); i++) { if (param == deg_span * i) { //len = ofMap(ofNoise(noise_seed_list[i], cos(deg * DEG_TO_RAD) * 0.1, sin(deg * DEG_TO_RAD) * 0.1, ofGetFrameNum() * 0.02), 0, 1, radius * 0.25, radius); len = ofMap(ofNoise(noise_seed_list[i], ofGetFrameNum() * 0.02), 0, 1, radius * 0.25, radius); ofSetColor(color_list[i]); } } auto location_1 = glm::vec2((radius + len * 0.5) * cos(deg * DEG_TO_RAD), (radius + len * 0.5) * sin(deg * DEG_TO_RAD)); auto location_2 = glm::vec2((radius - len * 0.5) * cos(deg * DEG_TO_RAD), (radius - len * 0.5) * sin(deg * DEG_TO_RAD)); ofDrawLine(location_1, location_2); ofDrawCircle(location_1, 3); ofDrawCircle(location_2, 3); } } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |