/**
         * Upload geometry data, including a texture image
         * @param	vertices		Vertex attribute data: x,y,z, nx,ny,nz, u,v  (position, normal, texture)
         * @param	indices			Face data
         * @param	textureBitmap	An image to be used as the texture
         */
        public void setGeometry(Vector <double> vertices, Vector <uint> indices, BitmapData textureBitmap)
        {
            // Upload vertex data
            if (vertexBuffer != null)
            {
                vertexBuffer.dispose();
            }
            vertexBuffer = context.createVertexBuffer((int)(vertices.length / DATA32_PER_VERTEX), (int)DATA32_PER_VERTEX);
            vertexBuffer.uploadFromVector(vertices, 0, (int)(vertices.length / DATA32_PER_VERTEX));

            // Upload polygon data (vertex indices)
            if (indexBuffer != null)
            {
                indexBuffer.dispose();
            }
            indexBuffer = context.createIndexBuffer((int)indices.length);
            indexBuffer.uploadFromVector(indices, 0, (int)indices.length);

            // Upload texture
            if (texture3D != null)
            {
                texture3D.dispose();
            }
            texture3D = context.createTexture(textureBitmap.width, textureBitmap.height, Context3DTextureFormat.BGRA, false);
            texture3D.uploadFromBitmapData(textureBitmap);
        }
        public void setGeometry(Vector <double> vertices, Vector <uint> indices)
        {
            // Upload vertex data
            if (vertexBuffer != null)
            {
                vertexBuffer.dispose();
            }
            vertexBuffer = context.createVertexBuffer((int)vertices.length / (int)DATA32_PER_VERTEX, (int)DATA32_PER_VERTEX);
            vertexBuffer.uploadFromVector(vertices, 0, (int)vertices.length / (int)DATA32_PER_VERTEX);

            // Upload polygon data (vertex indices)
            if (indexBuffer != null)
            {
                indexBuffer.dispose();
            }
            indexBuffer = context.createIndexBuffer((int)indices.length);
            indexBuffer.uploadFromVector(indices, 0, (int)indices.length);
        }