Re: How can I get the height above terrain information?.

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Jenny Zhao (zhz++at++dandan.engr.sgi.com)
Tue, 22 Sep 1998 00:22:30 -0700

On Sep 21, 11:13am, leehd++at++samsung.co.kr wrote:
> Subject: How can I get the height above terrain information?.
>
> [ plain text
> Encoded with "quoted-printable" ] :
Hello!.
>
> How can I get the height above terrain information by using IRIS
>
> Performer?.
check out the intersect.c sample code in pguide/libpf/C.
however, if you need more complicated calculation
and would like to run it asynchronizely, then
you should define an isectFunc and assign it to the
ISECT process.

>
> when instersection occurance, I can get the intersection result.
>
> but I can't get the HAT in real-time(30Hz) condition.
i assume what you mean by real-time is that every frame
you want to get the new intersection result.
you can tell performer not to fork the ISECT process,
in which case the isect function will get excuted synchronizely.
to do that, call pfMultiprocess with the appropriate MP models.

>
> Please, help me!.
>
> Thank you!.
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>-- End of excerpt from leehd++at++samsung.co.kr

-- 




Jenny Zhao                                   
zhz++at++engr.sgi.com                    
650 933-5091
Silicon Graphics - Manager of IRIS Performer

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