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チェーンりんぐ。
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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; int color_param; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(25); ofSetWindowTitle("openframeworks"); ofBackground(39); ofSetColor(239); ofSetCircleResolution(60); ofNoFill(); ofEnableDepthTest(); this->noise_step = ofRandom(1000); this->color_param = 0; } //-------------------------------------------------------------- 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, 0.015); this->color_param += 2; } else if (param < 45) { this->noise_step += 0.015; this->color_param += 2; } else { this->noise_step += ofMap(param, 45, 50, 0.015, 0); this->color_param += 2; } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 2.88); auto noise_seed = glm::vec3(ofRandom(1000), ofRandom(1000), ofRandom(1000)); ofColor color; for (int i = 0; i < 32; i++) { ofPushMatrix(); ofRotateZ(ofMap(ofNoise(noise_seed.z, this->noise_step + i * 0.0075), 0, 1, -360, 360)); ofRotateY(ofMap(ofNoise(noise_seed.y, this->noise_step + i * 0.0075), 0, 1, -360, 360)); ofRotateX(ofMap(ofNoise(noise_seed.x, this->noise_step + i * 0.0075), 0, 1, -360, 360)); color.setHsb((i * 2 + this->color_param) % 255, 200, 255); ofSetColor(color); auto radius = ofMap(i, 0, 32, 150, 350); ofMesh face, line; line.setMode(ofPrimitiveMode::OF_PRIMITIVE_LINES); for (int deg = 0; deg < 360; deg++) { face.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0)); face.addVertex(glm::vec3() + glm::vec3((radius - 10) * cos(deg * DEG_TO_RAD), (radius - 10) * sin(deg * DEG_TO_RAD), 0)); face.addVertex(glm::vec3() + glm::vec3((radius - 10) * cos((deg + 1) * DEG_TO_RAD), (radius - 10) * sin((deg + 1) * DEG_TO_RAD), 0)); face.addVertex(glm::vec3() + glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0)); face.addIndex(face.getNumVertices() - 1); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 4); face.addIndex(face.getNumVertices() - 2); face.addIndex(face.getNumVertices() - 3); face.addIndex(face.getNumVertices() - 4); face.addColor(ofColor(color, 64)); face.addColor(ofColor(color, 64)); face.addColor(ofColor(color, 64)); face.addColor(ofColor(color, 64)); line.addVertex(glm::vec3() + glm::vec3(radius * cos(deg * DEG_TO_RAD), radius * sin(deg * DEG_TO_RAD), 0)); line.addVertex(glm::vec3() + glm::vec3((radius - 5) * cos(deg * DEG_TO_RAD), (radius - 5) * sin(deg * DEG_TO_RAD), 0)); line.addVertex(glm::vec3() + glm::vec3((radius - 5) * cos((deg + 1) * DEG_TO_RAD), (radius - 5) * sin((deg + 1) * DEG_TO_RAD), 0)); line.addVertex(glm::vec3() + glm::vec3(radius * cos((deg + 1) * DEG_TO_RAD), radius * sin((deg + 1) * DEG_TO_RAD), 0)); line.addIndex(line.getNumVertices() - 1); line.addIndex(line.getNumVertices() - 4); line.addIndex(line.getNumVertices() - 2); line.addIndex(line.getNumVertices() - 3); line.addColor(color); line.addColor(color); line.addColor(color); line.addColor(color); } face.draw(); line.draw(); ofPopMatrix(); } this->cam.end(); /* // ffmpeg -i img_%04d.jpg aaa.mp4 int start = 300; if (ofGetFrameNum() > start) { std::ostringstream os; os << std::setw(4) << std::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()); } |
[ Link ]
https://github.com/junkiyoshi/DoodleDeProgramming/tree/22be7925b9da82bd97bf5485a97dff5c3f51dedd