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ノイズ球体。
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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 windowResized(int w, int h) {}; void dragEvent(ofDragInfo dragInfo) {}; void gotMessage(ofMessage msg) {}; ofEasyCam cam; ofMesh mesh; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofSetWindowTitle("openFrameworks"); ofBackground(39); ofEnableDepthTest(); auto ico_sphere = ofIcoSpherePrimitive(200, 6); this->mesh = ico_sphere.getMesh(); } //-------------------------------------------------------------- void ofApp::update() { this->mesh.clearColors(); ofSeedRandom(39); ofColor color; for (int i = 0; i < this->mesh.getNumVertices(); i++) { auto noise_value = ofMap(ofNoise(glm::vec4(this->mesh.getVertex(i) * 0.005, ofGetFrameNum() * 0.015)), 0, 1, 0, 10); int int_noise_value = (int)noise_value; noise_value = noise_value - int_noise_value; auto brightness = ofMap(abs(noise_value - 0.5), 0, 0.5, 255, 0); auto hue = ofMap(int_noise_value, 0, 10, 0, 255); color.setHsb(hue, 100, brightness); this->mesh.addColor(color); } } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); ofRotateY(ofGetFrameNum() * 3); this->mesh.drawFaces(); this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |