Skybox resizing problems

Ok, i have found a bunch of images for a skybox. Only problem is, each image is 800x800. Now, i'm wanting 512x512 at the most, but downscaling the images makes the seams not match up, as they is some missing visual data in the downsize.

Anything i can do?

Only thing I can think of is stitching them all together into one seamless image, resize it down, then split them apart.

[EDIT] Whoops, misinterpreted your use of downscaling.

Or resize them all down then put them into a skybox.

Only things i can think of that can cause this:

- Dont ever use Jpeg for tiling images. The re-encoding after a resize will make it look awfull, even different brightnesses. Use PNG or another lossless format instead.

- Check which resizing you are using. There are usually several options, some that antialias, some that filter prominent pixels, and some that simply strip pixels as required.

I tend to use "smart resize" in paintshop which usually does a good job.

I'm using bi-linear. I fixed it though by downsizing them in half (400x400), which seems (no pun intended) to have scaled alot better, then let blitz upscale them to the 512x512. They looks very blocky though

I was saving them in jpeg, as that's the format they came in.

I will try your suggestions, thanks :o)