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Changing color.
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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(30); ofSetWindowTitle("openframeworks"); ofBackground(239); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(90); int hue = ofGetFrameNum() % 255; ofColor color; int span = 15; ofMesh face, frame; frame.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); float frame_step = 0.04; float len_step = 0.002; auto noise_param = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); for (float len = ofGetWidth(); len > 0; len -= span) { int index = face.getNumVertices(); auto loc = glm::vec3( len * ofMap(ofNoise(noise_param.x, ofGetFrameNum() * frame_step + len * len_step), 0, 1, 0, 0.3), len * ofMap(ofNoise(noise_param.y, ofGetFrameNum() * frame_step + len * len_step), 0, 1, 0, 0.3), len * ofMap(ofNoise(noise_param.z, ofGetFrameNum() * frame_step + len * len_step), 0, 1, 0, 0.3) ); auto next = glm::vec3( (len - span) * ofMap(ofNoise(noise_param.x, ofGetFrameNum() * frame_step + (len - span) * len_step), 0, 1, 0, 0.3), (len - span) * ofMap(ofNoise(noise_param.y, ofGetFrameNum() * frame_step + (len - span) * len_step), 0, 1, 0, 0.3), (len - span) * ofMap(ofNoise(noise_param.z, ofGetFrameNum() * frame_step + (len - span) * len_step), 0, 1, 0, 0.3) ); face.addVertex(glm::vec3(loc.x, loc.y, loc.z)); face.addVertex(glm::vec3(-loc.x, loc.y, loc.z)); face.addVertex(glm::vec3(-next.x, next.y, next.z)); face.addVertex(glm::vec3(next.x, next.y, next.z)); color.setHsb((int)(hue + len / 6) % 255, 255, 180); face.addColor(color); face.addColor(color); face.addColor(color); face.addColor(color); frame.addVertex(glm::vec3(loc.x, loc.y, loc.z)); frame.addVertex(glm::vec3(-loc.x, loc.y, loc.z)); frame.addVertex(glm::vec3(-next.x, next.y, next.z)); frame.addVertex(glm::vec3(next.x, next.y, next.z)); face.addIndex(index + 0); face.addIndex(index + 1); face.addIndex(index + 2); face.addIndex(index + 0); face.addIndex(index + 2); face.addIndex(index + 3); frame.addIndex(index + 0); frame.addIndex(index + 3); frame.addIndex(index + 1); frame.addIndex(index + 2); } frame.addIndex(0); frame.addIndex(1); frame.addIndex(frame.getNumVertices() - 1); frame.addIndex(frame.getNumVertices() - 2); for (int i = 0; i < 8; i++) { ofRotateX(45); ofSetColor(39); face.draw(); ofSetColor(239); frame.drawWireframe(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |