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IcoSphereから、それぞれの三角形の座標を取得しています。
We are acquiring the coordinates of each triangle from IcoSphere.
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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; ofIcoSpherePrimitive icoSphere; }; |
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#include "ofApp.h" //-------------------------------------------------------------- void ofApp::setup() { ofSetFrameRate(30); ofBackground(255); ofSetWindowTitle("Insta"); ofEnableDepthTest(); this->icoSphere.setRadius(300); this->icoSphere.setResolution(4); } //-------------------------------------------------------------- void ofApp::update() { } //-------------------------------------------------------------- void ofApp::draw() { this->cam.begin(); vector<ofMeshFace> triangles = this->icoSphere.getMesh().getUniqueFaces(); for (int i = 0; i < triangles.size(); i++) { ofVec3f avg = (triangles[i].getVertex(0) + triangles[i].getVertex(1) + triangles[i].getVertex(2)) / 3; float noise_value = ofNoise(avg.x * 0.005, avg.y * 0.005 + ofGetFrameNum() * 0.005, avg.z * 0.005); ofMesh mesh; if (noise_value > 0.75) { mesh.addVertex(triangles[i].getVertex(0) * ofMap(noise_value, 0.75, 1, 1, 2)); mesh.addVertex(triangles[i].getVertex(1) * ofMap(noise_value, 0.75, 1, 1, 2)); mesh.addVertex(triangles[i].getVertex(2) * ofMap(noise_value, 0.75, 1, 1, 2)); mesh.addVertex(triangles[i].getVertex(0)); mesh.addVertex(triangles[i].getVertex(1)); mesh.addVertex(triangles[i].getVertex(2)); mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(2); mesh.addIndex(3); mesh.addIndex(4); mesh.addIndex(5); mesh.addIndex(0); mesh.addIndex(3); mesh.addIndex(4); mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(4); mesh.addIndex(1); mesh.addIndex(2); mesh.addIndex(4); mesh.addIndex(2); mesh.addIndex(5); mesh.addIndex(4); mesh.addIndex(0); mesh.addIndex(2); mesh.addIndex(3); mesh.addIndex(2); mesh.addIndex(3); mesh.addIndex(5); ofSetColor(255 - 255 * (noise_value - 0.75), 0, 0); } else { mesh.addVertex(triangles[i].getVertex(0)); mesh.addVertex(triangles[i].getVertex(1)); mesh.addVertex(triangles[i].getVertex(2)); mesh.addIndex(0); mesh.addIndex(1); mesh.addIndex(2); ofSetColor(255, 0, 0); } mesh.draw(); } this->cam.end(); } //-------------------------------------------------------------- int main() { ofSetupOpenGL(720, 720, OF_WINDOW); ofRunApp(new ofApp()); } |