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Re: Faster movies in wave [message #1478]

Mon, 27 September 1993 01:27

knipp
Messages: 68
Registered: January 1993

Member

As I understand MOVIE tv's an image directely to the window; an indirect way
however would be faster:

- first open p.e. 20 windows with keyword /PIXMAP
- display 20 images into the (pixmap)-windows
- open a display-window
- copy the images to the display window via
DEVICE, COPY=[...]

Karl

____________________________________________________________ __________________
__ ____ __
/ // _ \ / / Karlheinz Knipp phone: +49 511 - 762 4922
/ // /_/ // / University of Hannover fax: +49 511 - 762 2483
/ // ____// / Institute for Photogrammetry
/ // / / / Nienburger Str.1
/_//_/ /_/ FRG 30167 Hannover 1 email: knipp@ipi.uni-hannover.de

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Re: Faster movies in wave [message #1480 is a reply to message #1478]

Mon, 27 September 1993 06:23

landers
Messages: 45
Registered: May 1993

Member

In article <CDzp33.I1q@quark.ansto.gov.au>, rfulton@atom.ansto.gov.au (Roger Fulton) writes:
|> Does anyone know how to display movies faster than is
|> possible with the movie command in wave/idl ? I have a need
|> to play 256x256 movies, and can't get them to run fast enough,
|> even on a Sparc 10/30 with 32 Mb.
|>
|> Is the problem a hardware limitation with SUN Sparcs ?
|>

Assuming you're using X-windows:

Use the XANIMATE command (in the User's lib).

The problem is not hardware, but implementation of MOVIE. MOVIE does repeated TVs
to cycle thru the images. This requires the client (PV-WAVE) to send the image
data to your X server over and over again. XANIMATE opens a large pixmap window,
and TVs all of the images there once. It then sends repeated DEVICE,COPY=...
commands to let the X server handle the image copying.

Bottom line - much faster.

--
Dave

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