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鍾乳洞。
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#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; ofMesh mesh; float noise_step; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(239); ofSetColor(255, 32); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT); } //-------------------------------------------------------------- void ofApp::update() { this->mesh.clear(); if (ofGetFrameNum() % 50 < 30) { this->noise_step += ofMap(ofGetFrameNum() % 50, 0, 30, 0.1, 0); } float size = 1; for (float x = 80; x <= ofGetWidth() - 80; x += size) { for (float y = 80; y <= ofGetHeight() - 80; y += size) { if (glm::distance(glm::vec2(x, y), ofGetWindowSize() * 0.5) < 300) { float deg = ofMap(ofNoise(x * 0.0035, y * 0.0035, this->noise_step), 0, 1, -1800, 1800); this->mesh.addVertex(glm::vec3( x + size * 3 * cos(deg * DEG_TO_RAD), y + size * 3 * sin(deg * DEG_TO_RAD), ofMap(abs(deg), 0, 360, 0, 250))); } } } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofTranslate(ofGetWindowSize() * -0.5); this->mesh.drawVertices(); this->cam.end(); /* int start = 500; if (ofGetFrameNum() > start) { ostringstream os; os << setw(4) << setfill('0') << ofGetFrameNum() - start; ofImage image; image.grabScreen(0, 0, ofGetWidth(), ofGetHeight()); image.saveImage("image/cap/img_" + os.str() + ".jpg"); if (ofGetFrameNum() - start >= 25 * 20) { std::exit(1); } } */ } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |