Tag: hardware acceleration

Using the TAB key – inconsistency between Status Bar and Preselection

Luke Johnson

Using my laptop with Revit 2013 and an ATI Mobility Radeon HD 4570 graphics card, I came across an interesting bug.  Using the Tab key, nothing seemed to be working.  But this is what was actually happening – I would:

  1. Hover over something
  2. Press Tab key, pre-selection does not cycle (but Status bar is correct, showing next item under cursor)
  3. Press Tab key again, pre-selection shows item from step 2, but again, Status bar shows the correct (next) item.  Left-clicking will select the item shown in the Status bar, not the one that is pre-selected.

Obviously, the first port of call for these types of problems is Graphics Hardware.  And yes, I was using Hardware Acceleration, and yes, the Hardware had not been tested with Revit, as the Options dialog shows:

Simply turning off Hardware Acceleration fixed this issue, as it will for many graphic-related bugs and errors.

If you really, really want the nice Hardware-accelerated stuff in Revit 2013 and you are using suboptimal hardware, you will need to either:

  • look for better graphics drivers for your hardware (may not work anyway)
  • replace your graphics / video card with one that Revit Wants (very hard if you are using a laptop!)

Similarly:
RevitCity.com | Problem selecting glass using tab key

DirectX Runtimes – download

Luke Johnson

As you know, support for DirectX is now an intrinsic part of Revit 3D hardware acceleration mode.

If you wish to install updated DirectX runtimes, go to this link (February 2010 version).

This may or may not help you if you are struggling with DirectX (Direct3D) related problems.

These runtimes are periodically updated. The June 2010 version can be found here.