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リングによる球。
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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; float noise_step; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(200); ofSetCircleResolution(60); ofNoFill(); ofEnableDepthTest(); ofEnableBlendMode(ofBlendMode::OF_BLENDMODE_SUBTRACT); this->noise_step = ofRandom(1000); } //-------------------------------------------------------------- void ofApp::update() { ofSeedRandom(39); auto param = ofGetFrameNum() % 50; if (param < 20) { this->noise_step += 0; } else if (param < 25) { this->noise_step += ofMap(param, 20, 25, 0, 0.0025); } else if (param < 45) { this->noise_step += 0.0025; } else { this->noise_step += ofMap(param, 45, 50, 0.0025, 0); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 0.72); auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); for (int i = 0; i < 32; i++) { ofSetLineWidth(ofMap(i, 0, 32, 1, 5)); ofPushMatrix(); ofRotateZ(ofMap(ofNoise(noise_seed.z, this->noise_step + i * 0.035), 0, 1, -360, 360)); ofRotateY(ofMap(ofNoise(noise_seed.y, this->noise_step + i * 0.035), 0, 1, -360, 360)); ofRotateX(ofMap(ofNoise(noise_seed.x, this->noise_step + i * 0.035), 0, 1, -360, 360)); ofDrawCircle(glm::vec3(), 250); ofPopMatrix(); } this->cam.end(); /* int start = 250; 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()); } |