A simple .gitignore for Unity3D

.gitignore

#################
## Visual Studio
#################

## Ignore Visual Studio temporary files, build results, and
## files generated by popular Visual Studio add-ons.

# User-specific files
*.suo
*.user
*.sln.docstates

# Build results
[Dd]ebug/
[Rr]elease/
*_i.c
*_p.c
*.ilk
*.obj
*.pch
*.pdb
*.pgc
*.pgd
*.rsp
*.sbr
*.tlb
*.tli
*.tlh
*.tmp
*.vspscc
.builds
*.dotCover

# Visual Studio profiler
*.psess
*.vsp

# ReSharper is a .NET coding add-in
_ReSharper*

# Installshield output folder
[Ee]xpress

# Click-Once directory
publish

# Others
[Bb]in
[Oo]bj
sql
TestResults
*.Cache
ClientBin
stylecop.*
~$*
*.dbmdl
Generated_Code #added for RIA/Silverlight projects

# Backup & report files from converting an old project file to a newer
# Visual Studio version. Backup files are not needed, because we have git ;-)
_UpgradeReport_Files/
Backup*/
UpgradeLog*.XML

############
## Windows
############

# Windows image file caches
Thumbs.db

# Folder config file
Desktop.ini

# Mac crap
.DS_Store

# Unity Files & Folders
/yourproject/Temp/
/yourproject/Library/previews/
/yourproject/Library/cache/
/yourproject/Temp/
/yourproject/Library/previews/
/yourproject/Library/ScriptAssemblies
/yourproject/Assembly-CSharp.csproj
/yourproject/Assembly-CSharp-Editor.csproj
/yourproject/Assembly-CSharp-Editor-vs.csproj
/yourproject/Assembly-CSharp-firstpass.csproj
/yourproject/Assembly-CSharp-firstpass-vs.csproj
/yourproject/Assembly-CSharp-vs.csproj
/yourproject/Assembly-CSharp.pidb
/yourproject/Assembly-CSharp-Editor.pidb
/yourproject/Assembly-CSharp-firstpass.pidb
/yourproject/Assembly-UnityScript.pidb
/yourproject/Assembly-UnityScript-firstpass.pidb
/yourproject/Assembly-UnityScript-vs.unityproj
/yourproject/yourproject.sln
/yourproject/yourproject-csharp.sln
/yourproject/Assembly-UnityScript.unityproj
/yourproject/Assembly-UnityScript-firstpass.unityproj
/yourproject/Assembly-UnityScript-firstpass-vs.unityproj
/yourproject/yourproject.userprefs
metadata
CurrentLayout