Polygonal viewports not clipping raster images?

Submitted by rkmcswain on Thu, 07/01/2010 - 15:47

We have some Windows 7, 64-bit systems running Nvidia FX580 display adapters with Civil 3D 2011 and Land Desktop 2009. Almost immediately, complaints started rolling in about raster images not being clipped by polygonal viewports.

I figured out that if we disabled hardware acceleration (using the 3DCONFIG command inside of AutoCAD), it solved the problem. But this seemed like a workaround at best. Further searching led me to recently released Nvidia "AutoCAD Performance" drivers for 2011.

The Release Notes did confirm that this issue was fixed with version 18.1.4 of this driver - which I confirmed myself after installing the driver.

 

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