OBJModel.java

@SuppressWarnings("unchecked")
        private final void putVertexData(Vertex v, TextureCoordinate t, Normal n, TextureAtlasSprite sprite)
        {
            int oldPos = buffer.position();
            Number[] ns = new Number[16];
            for (int i = 0; i < ns.length; i++)
                ns[i] = 0f;
            for (VertexFormatElement e : (List<VertexFormatElement>) format.getElements())
            {
                switch (e.getUsage())
                {
                case POSITION:
                    put(e, v.position.x, v.position.y, v.position.z, 1f);
                    break;
                case COLOR:
                    if (v.color != null)
                        put(e, v.color.x, v.color.y, v.color.z, v.color.w);
                    else
                        put(e, 1f, 1f, 1f, 1f);
                    break;
                case UV:
                    if (t != null)
                    {
                        put(e, sprite.getInterpolatedU(t.getPosition().x * 16), sprite.getInterpolatedV(t.getPosition().y * 16), 0f, 1f);
                    }
                    else
                        put(e, 0f, 0f, 0f, 1f);
                    break;
                case NORMAL:
                    put(e, n.normal.x, n.normal.y, n.normal.z, 1f);
                    break;
                case GENERIC:
                    put(e, 0f, 0f, 0f, 0f);
                    break;
                default:
                    break;
                }
            }
            buffer.position(oldPos + format.getNextOffset());
        }