[sldev] [ogpx] Snowglobe on OpenSim grids

[Carlo Wood]

On Sun, Dec 13, 2009 at 11:45:59PM -0800, Dahlia Trimble wrote:
> I was under the (possibly false) impression that the SL viewer used JPEG2000
> discard levels as a means of mipmapping, at least for textures. The current
> OpenSim map tiles used with the traditional map feature are standard image
> assets, which should be encoded using JPEG2000. Is the Snowglobe map using
> JPEG2000 images as well? If so, what is the MIME type used for HTTP transfer? I
> had heard that standard Jpeg encoding and HTTP was used.

Using JPEG2000 won't work in this case.
If you use one HUGE image for the whole world, then you have
to download the whole image if you zoom in. If you lots of
small images, then you have to download LOTS of images if
you zoom out. Even if those become small when you zoom out,
that would still be very inefficient (and slow) to do via HTTP.

-- 
Carlo Wood <carlo at alinoe.com>