[vtkusers] Re: animating images

Goodwin Lawlor goodwin.lawlor at ucd.ie
Thu Nov 4 18:12:41 EST 2004


Hi Beau,

There's much better performance using vtkImageActor (its a quad textured
with the input image) and magnifying by using parallel perspective and
changing the parallel scale, ie, using the camera.

hth

Goodwin

"Beau Sapach" <beau.sapach at ualberta.ca> wrote in message
news:200411042259.iA4MxHnK011252 at pilsener.srv.ualberta.ca...
> Hello everyone,
>
> I'm using vtkImageMagnify to magnify a set of images, then display them as
a
> movie.  Magnification is done seperately from the movie loop but is still
> surprisingly slow.  I've used vtkImageMagnify::InterpolateOff() but I
still
> think it's doing some kind of interpolation is there any way to be SURE
it's
> not interpolating in any way?
>
> Also, are there any other API sets out there that anyone might recommend
for
> doing 2D image display?  I know native OpenGL is potentially an option,
are
> there any others?
>
> ----------------------------------------
> Beau Sapach
> Network Administrator
> Biomedical Engineering
> University of Alberta
> Phone: (780) 492-8098
>   Fax: (780) 492-8259
> Email: beau.sapach at ualberta.ca
> ----------------------------------------
>
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