Interface that conveys information about a Terrain within the PaintContext area.
| clippedPCPixels | Read only. PaintContext.pixelRect, clipped to this Terrain, in PaintContext pixel coordinates. |
| clippedTerrainPixels | Read only. PaintContext.pixelRect, clipped to this Terrain, in Terrain pixel coordinates. |
| gatherEnable | Controls gathering from this Terrain within the PaintContext. The default is true. |
| scatterEnable | Controls scattering to this Terrain within the PaintContext. The default is true. |
| terrain | Read only. The Terrain represented by this context. |
| userData | Modify this value, if required, to store and retrieve values relevant to the PaintContext operation. |