Structure describing an Update Zone.
UpdateZones are used when updating the full custom render texture is not required. They are defined by a position, a size and a rotation inside the surface of the texture. Multiple Update Zones can be set up in order to update different parts of the texture at the same time. See Also: CustomRenderTexture.
| needSwap | If true, and if the texture is double buffered, a request is made to swap the buffers before the next update. Otherwise, the buffers will not be swapped. |
| passIndex | Shader Pass used to update the Custom Render Texture for this Update Zone. |
| rotation | Rotation of the Update Zone. |
| updateZoneCenter | Position of the center of the Update Zone within the Custom Render Texture. |
| updateZoneSize | Size of the Update Zone. |