SpriteUV - concave mesh sprite packer

Community Showcases
1

Hello everybody!

Happy to present you SpriteUV concave mesh generator and atlas packer.

Some key features:

  • Extremely tight packing. Additional 30%-60% texture free space compare to square or other concave packing algorithms
  • Concave Mesh from sprite
  • Per sprite adjustments
  • Export to COLLADA or OBJ. Ready to use in Unity3d or any 3d application
  • Free version is available

Example:

1654860--103334--characters.png
1654860--103334--characters.png700×300 19.8 KB

*Characters created by amazing artist Little Druid

size 512x512 triangle count 247

1654860--103332--demoAtlas.png
1654860--103332--demoAtlas.png512×512 21.1 KB
1654860--103333--demoWireframe.png
1654860--103333--demoWireframe.png512×512 41.6 KB

To download and for more information please visit www.spriteuv.com.

2

Ok looks nice, but why we should use SpriteUV when we already have unity3d with Sprite Packer ?

3

Well, that’s a good question. I’ve tried to pack those sprites with Sprite Packer, of course it depends on particular sprite set or different policies, but the best result I’ve got is this: 1024x512, triangle count 312

1656434--103448--demoUnity.png
1656434--103448--demoUnity.png1024×512 80.4 KB

I’ve tried to adjust some settings, but I didn’t fit to 512x512 and some sprites had non-optimal mesh or too many triangles:
1656434--103449--demoUnityWire.png
1656434--103449--demoUnityWire.png844×571 112 KB

In SpriteUV you will get very good result, or the best result, simply by using default settings.

4

Hmm, interesting.

5

I like the look of this, but not as a standalone application.

6

[quote=“duke_1, post:5, topic: 540122, username:duke_1”]
I like the look of this, but not as a standalone application.
__[/quote]
__
Yes I agree with you, it’s more convenient to have a plugin for unity3d without standalone application, but only Pro version allows to use native plugins, and I’d like to give Free version users ability to use SpriteUV also. Of course plugin will be made, but little later.

7

You could expose a command-line version and build a Unity Editor script to deal with it :slight_smile: I did this with TexturePacker Pro, works great.

8

Why is the .exe reported by VirusTotal as containing a trojan?

9

Wow I’m so sorry. It must be a mistake. Maybe because of obfuscator (very few antivirus have thrown alert). Thank you for your report. I will double check everything and upload unquestionable file. Current file will be removed.
Thank you very much again.

10

As I thought the problem was in obfuscator. I turned off some settings and now every anti-virus is happy.
Please if you have suspected SpriteUV as virus or harmful software, give it a chance to prove that it’s nothing but very useful tool.

11

Happy to inform that new 0.9.2.0b version is available, critical bugs were discovered and fixed:

  • Bug fixes:

  • Crashes on various image pixel format.

  • Crashes on images without alpha channel

  • Improvements:

  • Mesh export file format option (Collada, Obj)

12

New 0.9.3.0b version is available. Another huge critical bug fix:

  • Crash on item selection

Please, if you discovered a bug let us know, it’s very important

13

Tutorial - how to use

And new 0.9.4.1 version is available:

  • Improvements:

  • Command line interface

14

Good !

15

I’m happy to inform you that SpriteUV is finally released and it’s still free!

What’s new in 1.0.0.0 version:

First non beta release
Improvements:

  • Minor bug fix
  • Small “tight quality” value generates minimal bounding box
  • Sprites with the same file path will not be added
16

Amazing !! i have uv bug at firt try ;(

17

Very nice! If you don’t mind telling, what algorithm is used for actual polygon packing?