internal void GenMipmaps( D3D9.BaseTexture mipTex )
		{
			Debug.Assert( mipTex != null );

			// Mipmapping
			if ( this.HWMipmaps )
			{
				// Hardware mipmaps
				mipTex.GenerateMipSubLevels();
			}
			else
			{
				// Software mipmaps
				mipTex.FilterTexture( (int)D3D9.Filter.Default, D3D9.Filter.Default );
			}
		}