RS-343 video output?

New Message Reply Date view Thread view Subject view Author view

Anita Kishore (kishore++at++electrogig.com)
Wed, 6 Mar 1996 15:43:50 -0800


I am using pfCycleBuffer in a libpf application to perform object
transformations. The steps I use is exactly similar to the ones
given in the man page of pfCycleBuffer.

My problem is that the graphic scene which contains the objects to
be transformed, is very complex, hence the DRAW process takes about
5 to 6 seconds to draw it initially (texture downloading takes this
long). By the time the scene becomes visible on the screen, the
transformation updations already will have completed many frames
(the updation is done in the APP process using cycle buffer). Hence
I see only the ending transformations depending on how long the
transformation is. The begining ones are lost ie: not drawn.

I thought that pfCycleBuffer would be the answer to this problem -
ie: it would always use frame accurate data. But this too doesn't
help. How can I pipeline all my transformation updations starting
from the initial state without losing anything?

I could do things like wait for the DRAW to complete and then update,
but apart from this, what else?

The motion is achieved by updating a pfMatrix type in the APP process
and setting it to a dcs node present above the object in the scene
graph.

Thanks for any help

-anita

-------------------------------------------------------------------
Anita Kishore
kishore++at++electrogig.com
-------------------------------------------------------------------


New Message Reply Date view Thread view Subject view Author view

This archive was generated by hypermail 2.0b2 on Mon Aug 10 1998 - 17:52:31 PDT

This message has been cleansed for anti-spam protection. Replace '++at++' in any mail addresses with the '@' symbol.