HD Skyboxes

These were great until I noticed the BMP extensions. I’ll add these if you reupload them as PNG (and the file sizes are small enough).

This one is a really good example in my opinion. The images are high-res, but the file sizes are super tiny.[/quote]

Mine are around 2.6 MB per panel and I may do .png. And is there something I should worry about uploading as BMP?

[quote] Mine are around 2.6 MB per panel and I may do .png. And is there something I should worry about uploading as BMP? [/quote]PNG is a superior format. PNG gives you very decent, lossless compression (no artifacts, unlike lossy JPEG).

PNG is also widely supported and allows transparency. PNG is just awesome.

I’d elaborate more, but I’m typing off of my phone. :frowning:

Okay, I’m taking the advice of .png instead of .bmp and re-uploaded them. I also updated the morning skybox so it matches with the sun at 06:25:00.

[quote] Since we’re on the subject, I’d like to populate this Set with more skyboxes. I’ve already found a few.

http://www.roblox.com/My/Sets.aspx?id=38438

I’d like to have it only contain quality skyboxes, so I’ve invented some criteria:

  • Each image must be at least 512x512
  • Each image must be square (equal width and height; no shirt templates!)
  • All images must have the same dimensions
  • PNG is preferred, JPG is acceptable if it looks good enough
  • Total file size for all 6 images cannot exceed mumble mumble megabytes
  • Model must contain only a Sky object and nothing else
  • Give the asset a nice, unique name if you can

I’m not really sure of a good number for the file size. 2 or 3MB is definitely pushing it. [/quote]
To that end I’ve started putting the approximate total size of all 6 images in the description of skyboxes I upload. Might put a link to your set in there too to spread it around.

Also 3 more skyboxes up - another from TF2 and 2 official skyboxes that I found a couple of years ago that seemingly never saw the light of day.

Not everyone has a million megabits of bandwidth. Ideally, the entire skybox should download in a few seconds for most users.

[quote] I made a few more, they might not be moderated yet. It’s hard to find good royalty free assets

http://www.roblox.com/Rays-from-the-Gods-1024x1024-item?id=149681844 [/quote]
Looks like you messed up the links. Make sure they look like this:

http://www.roblox.com/asset/?id=<asset-id-here>

In your case, you used “assets” instead of “asset”.

Also, I’ve updated the criteria to indicate a maximum resolution of 1024x1024.

Not everyone has a million megabits of bandwidth. Ideally, the entire skybox should download in a few seconds for most users.

Also, I’ve updated the criteria to indicate a maximum resolution of 1024x1024.[/quote]

Yeah, I’ve done some research and it’s conclusive that .bmp format loads slower than .png (depending on the internet speed.) The skybox panels are around 400-600KB now that they’re formatted to .png.

[quote] Looks like you messed up the links. Make sure they look like this:
http://www.roblox.com/asset/?id=
In your case, you used “assets” instead of “asset”.
[/quote]

Fixed (I was tired)

Still too large, I think. I ran your images of Light Blue Skybox2 through OptiPNG without even messing with any parameters, and it managed to reduce the total size from 4.4MB to 2.8MB. To anyone uploading PNGs, I suggest using this first.

Still too large, I think. I ran your images of Light Blue Skybox2 through OptiPNG without even messing with any parameters, and it managed to reduce the total size from 4.4MB to 2.8MB. To anyone uploading PNGs, I suggest using this first.[/quote]

Wait, are you saying that the images all together cannot exceed megabyte?

Total image size of Light Blue Skybox2 after converted to .png:
2.85MB

Total image size of Light Blue Skybox after converted to .png:
3.42MB

Total image size of Peaceful Morning after converted to .png:
2.95MB

Also, Testin;

Do you use something like terragen to create those skyboxes? I’ve used it in the past for little vignettes and I’m wondering if I can use it for skyboxes.

[quote] Also, Testin;

Do you use something like terragen to create those skyboxes? I’ve used it in the past for little vignettes and I’m wondering if I can use it for skyboxes. [/quote]

Yeah, Terragen v0.9. I use the old version because it’s easier to navigate around and such.

Yeah. I’ve decided to make the limit 3MB for the combined size of all 6 images.

[quote]
Total image size of Light Blue Skybox2 after converted to .png:
2.85MB

Total image size of Light Blue Skybox after converted to .png:
3.42MB

Total image size of Peaceful Morning after converted to .png:
2.95MB [/quote]

These aren’t the sizes I’m getting when I download them. Here’s Light Blue Skybox2:

Face    ID          Size

Back    149728641   739KB
Down    149728612   751KB
Front   149728655   673KB
Left    149728585   915KB
Right   149728622   721KB
Up      149728676   703KB

Total               4.4MB

Edit: It seems that images are re-encoded after they’re uploaded.

[quote]
Total image size of Light Blue Skybox2 after converted to .png:
2.85MB

Total image size of Light Blue Skybox after converted to .png:
3.42MB

Total image size of Peaceful Morning after converted to .png:
2.95MB [/quote]

These aren’t the sizes I’m getting when I download them. Here’s Light Blue Skybox2:

Face    ID          Size

Back    149728641   739KB
Down    149728612   751KB
Front   149728655   673KB
Left    149728585   915KB
Right   149728622   721KB
Up      149728676   703KB

Total               4.4MB

Edit: It seems that images are re-encoded after they’re uploaded.[/quote]

Strange… In Windows Explorer it says the size is through 400-500KB. Something must be changing the pictures when uploaded. I could just send you the pictures themself.

How is it, that sometimes skyboxes don’t even load?

Are the sky’s links from the wiki? If so skies from the wiki are blocked for some reason.

Still too large, I think. I ran your images of Light Blue Skybox2 through OptiPNG without even messing with any parameters, and it managed to reduce the total size from 4.4MB to 2.8MB. To anyone uploading PNGs, I suggest using this first.[/quote]

I was recently changing the brightness of the Light Blue Skybox and I used OptiPNG with the cmd.exe because it doesn’t support 64bit systems. Basically it just reduced size of each image by 6-10 KB. Not much but some improvement. I haven’t tried the one you mentioned yet.

EDIT: On another note, I may make some more skyboxes when I get some spare time away from studio.

Bump, made two more yesterday. Check original post.

Made three more guys, check original post. I Already bumped this thread a few times and may not be doing it anymore after this one.

Bump, I know, but this made the blog.

Looks really realistic.