A Texture capable of storing many smaller Textures with offsets. A Texture capable of storing many smaller Textures with offsets. You can dynamically add pieces(Textures) to this fLargeTexture] using different offsets. Add another [Texture] to this [LargeTexture], starting on offset "ofs". Clear the [LargeTexture]. Return the number of pieces currently in this [LargeTexture]. Return the offset of the piece with index "idx". Return the [Texture] of the piece with index "idx". Set the offset of the piece with index "idx" to "ofs". Set the [Texture] of the piece with index "idx" to "ofs". Set the size of this [LargeTexture].