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色を変える。
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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 mouseEntered(int x, int y) {}; void mouseExited(int x, int y) {}; void windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openFrameworks"); ofBackground(0); ofSetColor(255); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); if (ofGetFrameNum() % 240 < 60) { ofBackground(ofMap(ofGetFrameNum() % 240, 0, 60, 0, 255)); ofSetColor(ofMap(ofGetFrameNum() % 240, 0, 60, 255, 0)); } if(ofGetFrameNum() % 240 > 120 && ofGetFrameNum() % 240 < 180) { ofBackground(ofMap(ofGetFrameNum() % 240, 120, 180, 255, 0)); ofSetColor(ofMap(ofGetFrameNum() % 240, 120, 180, 0, 255)); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); for (int i = 0; i < 200; i++) { auto x = ofRandom(-600, 600); auto y = ofRandom(-600, 600); auto z = (int)(ofRandom(1200) + ofGetFrameNum() * 20) % 1200 - 600; ofDrawLine(glm::vec3(x, y, z), glm::vec3(x, y, z - 30)); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |