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Re: antialiased image from IDLgrWindow::Read() ?? [message #30520 is a reply to message #30377]

Sat, 27 April 2002 10:17

Rick Towler
Messages: 821
Registered: August 1998

Senior Member

Hi Sean,

Is AA turned on? (desktop properties -> settings -> advanced -> GF3 ->
Additional Properties -> 3d antialiasing settings) With your GF3 you should
be able to set 2x, Quincunx, and 4x. Make sure IDL's renderer is set to
hardware. Restart IDL after you make any changes.

I don't know if the linux drivers have AA enabled. I would stick to windows
for now.

I have had problems with different driver versions, IDL, and AA. Until
recently I had to use my video card vendors driver since the nVidia
reference driver failed to produce AA output with IDL (but it would work
with other OpenGL applications). I am currently running the latest nVidia
reference drivers and IDL 5.5 and AA works great. What version of IDL are
you running?

You should see the difference in the window so don't bother grabbing images
and checking them until you get AA working.

-Rick

"Sean Dettrick" <dettrick@uci.edu> wrote in message
news:aacp9m$ckm$1@news.service.uci.edu...
> Hi,
> I want to read an antialiased image from IDLgrWindow. Rick Towler
suggested
> this is possible on recent mid-high end video cards. I have tried, but
> without success. Does anyone have advice?
>
> I have an NVIDIA GeForce 3 Ti 200, which, sifting through the
superlatives,
> purports to have a patented High Resolution Anti Aliasing (HRAA) system.
>
> However, using
> oImage = oWindow -> Read()
> oImage -> GetProperty, data=image_data
> write_bmp,'test.bmp',image_data,/rgb
> produces an aliased image.
>
> Furthermore, I notice that all of my output is aliased. This is true on
> both my linux and windows partitions (I have the latest NVIDIA driver on
the
> windows partition).
>
> Any suggestions would be greatly appreciated...
>
> Thanks,
> Sean Dettrick
>
>
>

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[Message index]

		antialiased image from IDLgrWindow::Read() ?? By: Sean Dettrick on Fri, 26 April 2002 16:53
		Re: antialiased image from IDLgrWindow::Read() ?? By: Rick Towler on Tue, 30 April 2002 11:04
		Re: antialiased image from IDLgrWindow::Read() ?? By: Sean Dettrick on Mon, 29 April 2002 21:10
		Re: antialiased image from IDLgrWindow::Read() ?? By: Rick Towler on Mon, 29 April 2002 11:16
		Re: antialiased image from IDLgrWindow::Read() ?? By: Sean Dettrick on Sat, 27 April 2002 14:33
		Re: antialiased image from IDLgrWindow::Read() ?? By: Rick Towler on Sat, 27 April 2002 10:17

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