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Is Unity 3 compatable with earlier version like unity 2.6 or 1.7
Can I open a version of my app built with either 2.6 or 1.7 in Unity 3 and then reopen it again in the earlier version?
Answer by Goody! · Oct 24, 2010 at 08:35 PM
WARNING!! NO! DO NOT DO IT!
Once opened with Unity3 scenes are effectively destroyed for use in earlier versions, specifically in my case Unity2.6 and 1.7. Only copies that have not been opened with Unity3 can be opened by earlier versions.
Sorry if this is common knowledge but I've heard from enough people that this is happened too that I wanted to plainly put it out there, hopefully easy to find.
Answer by BinaryCaveman · Oct 24, 2010 at 08:39 PM
It is not possible.
When you open a project from an older version of Unity with Unity 3, it says
"Upgrading project!
Your project was created with an older version of Unity.
Upgrading the project might take a few minutes."
[Continue] [Quit]
This completely changes the project's organization (in /Library/) to suit Unity 3, so the project will not work with older versions of Unity anymore.
But on the other hand, why use Unity 2.6 or 1.7 when you can use Unity 3? ;)
Because it costs one person around 3000 dollars to make an Iphone game with it.
@Goody: it costs $400 to make an iPhone game if you're buying new, and upgrading from Unity iPhone 1.7 is $200. If you have Pro, then upgrading is $1500.
Thanks for the clarification Eric. Yeah, you're right. I needed Unity 3 to access features with Bradey's Gui$$anonymous$$anager and in purchasing it found that you didn't have to buy Pro like it seemed everyone said you did. I wish I'd known that sooner. :)
Wow, I misspelled Bradey's. Sorry Brady! Love Sprite$$anonymous$$anager and GUI$$anonymous$$anager! :)
Answer by shellon123 · Nov 22, 2010 at 01:15 PM
Well,I find many shaders used in earlier version don't work in 3.0,Such as AlphaDiffuse2sided and glass shader.
First, this is not really an answer - you should post comments like these by clicking "add comment" below the asker's question. Secondly, shaders like these work, but might have been replaced with a new, improved one in Unity 3.
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