>> Might I ask on what display are you using a 41000 x 41000 picture ?
>> It took more than a 4m x 3m advertisement poster with the fine details
>> of handheld publication (10 pixels/mm).
>
> The image is a very small galaxy of the following dimensions,
> ~41,000x41,000x10,000ly. Our current star grouping has ~12M coordinates (stars
> only) which are being placed as single unit (1ly) white spheres. I am mainly
> trying to generate the image for a top view. While I am normally rendering it at
> a max of 12800x10240 (which takes ~10hrs to finish rendering) the even larger
> image was desired so we could break down the exact locations better and allow
> extreme zooming to a specific coordinate (or at least the 2D representation of
> it).
>
> So basically it was an idea to get a ~1ly:1pixel representation of the galaxy in
> the image.
>
>
In that case, why not create a mosaic of smaller images that you can 
assemble and display as needed.
That way, you can have a collection of, say, 1000x1000 pixels tiles, 
with possibly a small overlap. You only have at most 4 images loaded in 
memory at any time.


Alain

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