Michael, thank you for the information. Did a little google research. A couple of explanations:

Circa 2005: http://www.chadvernon.com/blog/resources/managed-directx-2/texture-compression-filters-and-transformations/

Up to date: http://msdn.microsoft.com/en-us/library/bb206250.aspx
It seems that turning off "bilinear interpolation" would require changing the MoI program as to how it uses Direct3D9 ( or DirectX?),
and maybe the result would be very poor anyway?

Read that NVIDIA video cards do not allow disabling of bilinear filters.

So I'll probably proceed using the filtered PDF textures, and guess at where to place the MoI Nurbs curves. The difference in location
is, (at a rough guess), say maybe 1/100 of an inch, and the plans are not perfect anyway. The Nurbs curves will be nice and crisp.

- Brian

Hi Brian,

> It seems that turning off "bilinear interpolation" would require changing the MoI program as to
> how it uses Direct3D9 ( or DirectX?),
> and maybe the result would be very poor anyway?

Yeah that's correct - currently MoI turns on bilinear interpolation when it sets up things for Direct3D and there isn't any method set up right now to turn it off.

When turned off you end up with "nearest neighbor" filtering which tends to be very heavily blocky and jaggedy. Things that look blurry to you right now instead be big jagged stair steps.

The main thing you need to do to get a better quality screen image is to get a higher resolution image to work with, the image that you're working with at the start of this thread here is too low in pixel count to get a good display, you basically need more pixel dots in order for the pixel structure of the image to not be so visible on the display.

If you have a really large plan then you may need to work on it in some separate pieces so that you can have a higher resolution (with a higher pixel count, again something like 2000x2000 instead of 600 pixels across like your image above) scan of each piece.

- Michael