GarageGames/Torque3D — pull request #541 by legendweaver (2013-12-03 20:23:10+00:00)
Title: Adds mViewport to guiTSControl in order to restrict render viewport to a...

... sub-region of the control. This is particularly useful when using a guiTSControl as a container control, as it can restrict the render area to prevent overdraw or dedicate screen space to a panel