| Re: antialiased image from IDLgrWindow::Read() ?? [message #30518 is a reply to message #30377] |
Sat, 27 April 2002 14:33   |
Sean Dettrick
Messages: 12
Registered: April 2002
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Junior Member |
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Hi Rick,
thanks again so much. AA now works on my home computer (Radeon 8500 chip)
via OpenGL. Not surprisingly it doesn't work with the proprietary Radeon
"Smoothvision" (which I guess is AA). Presumably I'll get it functioning on
my at-work Nvidia as well. If not I'll let you know in case you're
interested. I have IDL5.5 by the way.
Sean
"Rick Towler" <tsehai@attbi.com> wrote in message
news:l2By8.14698$ao1.8340@rwcrnsc54...
> Hi Sean,
>
> Is AA turned on? (desktop properties -> settings -> advanced -> GF3 ->
> Additional Properties -> 3d antialiasing settings) With your GF3 you
should
> be able to set 2x, Quincunx, and 4x. Make sure IDL's renderer is set to
> hardware. Restart IDL after you make any changes.
>
> I don't know if the linux drivers have AA enabled. I would stick to
windows
> for now.
>
> I have had problems with different driver versions, IDL, and AA. Until
> recently I had to use my video card vendors driver since the nVidia
> reference driver failed to produce AA output with IDL (but it would work
> with other OpenGL applications). I am currently running the latest nVidia
> reference drivers and IDL 5.5 and AA works great. What version of IDL are
> you running?
>
> You should see the difference in the window so don't bother grabbing
images
> and checking them until you get AA working.
>
>
> -Rick
>
>
>
> "Sean Dettrick" <dettrick@uci.edu> wrote in message
> news:aacp9m$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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