Texture coordinate transform for Effects
Texture coordinate transforms are not exposed for any effects that can be used by the Reach profile even though this is something the GPU can probably do cheaply.
XNA has been deprecated. However, Windows 10 now provides a composition namespace (https://msdn.microsoft.com/en-us/library/windows/apps/windows.ui.composition.aspx) that gives developers deep access to the visual layer via the composition pipeline including effects and animations that run in the compositor. Here’s a good breakdown that also includes links to resources including a GitHub with code samples and videos that walk through code samples of effects and animations (https://github.com/Microsoft/WindowsUIDevLabs/wiki/Windows-UI-Newsletter---May-Edition )
Ananth Balasubramaniam commented
Allowing this one extra shader parameter will open up a whole new class of effects including projective textures, Quake 3 style shader effects and more! It can be implemented as either a new property that is set to Identity so that apps that don't use it today don't break or added to a new Effect class.