Hi, I've added two extensions to the Vec package: Vec-Transform and Vec-Boolean. These two packages are more or less essential when programming GPipe programs, but can also be useful for other applications as well. * Vec-Transform provides some 4x4 transform matrices such as perspective projection and rotation. * Vec-Boolean provides Data.Boolan instances for the Vec data types. Cheers /Tobias _________________________________________________________________ Windows Live: Håll dina vänner uppdaterade om vad du gör online. http://www.microsoft.com/windows/windowslive/see-it-in-action/social-network...