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トーラスをパーリンノイズでバラバラに
Torus is split by Perlin noise.
[ Source ]
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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) {}; ofPoint make_point(float radius, float deg, float small_radius, float small_deg); ofEasyCam cam; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(60); ofSetWindowTitle("openframeworks"); ofBackground(239); ofSetColor(39); ofEnableDepthTest(); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum()); float radius = 300.f; float small_radius = 80.f; float deg_span = 10.f; float small_deg_span = 30.f; for (int deg = 0; deg < 360; deg += deg_span) { for (int small_deg = 0; small_deg < 360; small_deg += small_deg_span) { float noise_value = ofNoise(deg * 0.05, small_deg * 0.05, ofGetFrameNum() * 0.005); float tmp_small_radius = small_radius * noise_value; ofSetColor(255 - noise_value * 255); ofBeginShape(); ofVertex(this->make_point(radius, deg, tmp_small_radius, small_deg)); ofVertex(this->make_point(radius, deg + deg_span, tmp_small_radius, small_deg)); ofVertex(this->make_point(radius, deg + deg_span, tmp_small_radius, small_deg + small_deg_span)); ofVertex(this->make_point(radius, deg, tmp_small_radius, small_deg + small_deg_span)); ofEndShape(true); } } this->cam.end(); } //-------------------------------------------------------------- ofPoint ofApp::make_point(float radius, float deg, float small_radius, float small_deg) { float x_1 = radius * cos(deg * DEG_TO_RAD); float y_1 = radius * sin(deg * DEG_TO_RAD); float x_2 = small_radius * cos(small_deg * DEG_TO_RAD) * cos(deg * DEG_TO_RAD); float y_2 = small_radius * cos(small_deg * DEG_TO_RAD) * sin(deg * DEG_TO_RAD); float x = x_1 + x_2; float y = y_1 + y_2; float z = small_radius * sin(small_deg * DEG_TO_RAD); return ofPoint(x, y, z); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |