struct LayerArgs

A Layer is a 2-dimensional image that is drawn by a Compositor. The

contents of each Layer in a Layerstack are independent of each other.

A layer is not drawn unless it has a camera, texture, or color.

Supported commands:

- Detach

- SetCamera

- SetColor

- SetTexture

- SetSize (depth must be zero)

- SetSize

- SetTranslation (z component determines the relative Z-ordering of layers)

- SetRotation (must rotate around Z-axis)

- SetScale