[PD] GEM "fastest video" ?

IOhannes m zmoelnig zmoelnig at iem.kug.ac.at
Mon Apr 15 13:18:44 CEST 2002


Andre Schmidt wrote:
> hi

> what is "fastest performance" to JUST play videos with gem (with 
> variable speeds & start points)
> - pix_film or pix_movie ?
[pix_film] and [pix_movie] have the same code, it's just that 
[pix_movie] does the texturing internally. With [pix_film] you have to 
use [pix_texture]. (see below)
So they both should be equally fast, with [pix_film] being certainly NOT 
faster when texturing.

> - rectangle or pix_draw ?
You cannot use [pix_movie] with pix_draw, as you need access to the 
Speed depends heavily on your grafix-card / openGL implementation.
On modern grafix-cards (esp. with hw-acceleration) texturing to 
[rectangle] will be very fast (hw-accelerated).
[pix_draw] will (mostly) be not hw-acclerated and therefore be slow.
On software-only openGL implementations and old or special cards, 
[pix_draw] might be faster (pE: because [rectangle] is so damned slow 
without hw-acceleration)

> (i dont need no pix modifiers eg. add,subtract,etc... only play videos)
[pix_film] is meant to enable pix_modifications.
so for you, using [pix_movie]+[rectangle] would make sense...(and be 
most likely the fastest solution)


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