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動いて止まる。
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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) {}; float noise_param; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_ADD); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); auto p = ofGetFrameNum() % 50; if (p < 12) { this->noise_param += ofMap(p, 0, 12, 0.25, 0.0); } else if(p > 88){ this->noise_param += ofMap(p, 88, 100, 0, 0.25); } } //-------------------------------------------------------------- void ofApp::draw() { ofMesh mesh; float span = 0.5; float noise_param = ofRandom(1000); for (int i = 0; i < 8; i++) { noise_param += 0.06; for (float x = 50; x <= 670; x += span) { for (float y = 50; y <= 670; y += span) { float noise_value = ofNoise(noise_param, x * 0.005, y * 0.005, this->noise_param); if ((noise_value >= 0.42 && noise_value <= 0.48)) { mesh.addVertex(glm::vec3(x, y, 0)); mesh.addVertex(glm::vec3(x + span, y, 0)); mesh.addVertex(glm::vec3(x + span, y + span, 0)); mesh.addVertex(glm::vec3(x, y + span, 0)); mesh.addIndex(mesh.getNumVertices() - 1); mesh.addIndex(mesh.getNumVertices() - 4); mesh.addIndex(mesh.getNumVertices() - 3); mesh.addIndex(mesh.getNumVertices() - 1); mesh.addIndex(mesh.getNumVertices() - 2); mesh.addIndex(mesh.getNumVertices() - 3); for (int i = 0; i < 4; i++) { mesh.addColor(ofColor(12)); } } } } mesh.draw(); } /* int start = 1; 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()); } |