[PD] scrolling with translate

[tom tlalim]

thnx.
i've already started working on a prototype for multiple files,
but it would be an excellent time saver to see both your implementations.

grtz,
tom

On Nov 12, 2007 2:35 AM, simon wise <simonxwise at hotmail.com> wrote:
>
>
> On 11 Nov 2007, at 3:43 PM, Roman Haefeli wrote:
>
> >> use :
> >> gemhead
> >> translateXYZ
> >> pix_image
> >> pix_texture
> >> rectangle 20 2
> >
> > i am surprised, that you got even a result with
> > [translateXYZ]-[pix_draw]. something very important to know about Gem
> > is, that you can work in two domains: in the openGl-domain, which is
> > completely processed on the gpu (if supported by hardware and enabled)
> > and in the pix domain, which is computed on the cpu. all objects of
> > gem
> > with pix_* in their name belong to the pix domain. what cyrilly is
> > proposing , is to switch as soon as possible to the opengl domain in
> > order to save cpu, since [pix_draw] usually is quite slow (with
> > [pix_draw] you get the very same result while just burning some cpu
> > cycles).
> >
> >> cyrille
> >>>
> >>> oh, and is there a way to plot large image files with [pix_texture]?
> >>> i'm trying to do something like this:
> >>> http://shiraklasmerphotography.com/Flash_Move/movement3.htm
> >
> > yeah, this is perfectly possible with the patch, that cyrille
> > proposed.
> > nevertheless, there are probably some hardware limitations. at
> > least on
> > my box, i wasn't able to texture a picture with a width of 3000px. i
> > splitted it into 3 files à 1000px and textured them separately on
> > three
> > rectangles. let me know, if cannot figure out to do it, i can send you
> > the patch.
>
> the hardware limitation that I know of is the graphics card memory
> (that limits the max size any textures can be) - the way I've got
> around that in a more general way is splitting long images into
> separate 4x3 files and using an abstraction with two gemheads,
> alternating between the smaller files - I could also post that if you
> wanted.
>
>
> simon
>
>