What is the point of object space normal mapping (apart from it merely existing as an alternative option to sampling tangents)?

Is there any reason one would ever use object space normal mapping? In what situation would you sample with an object space normal map rather than tangent space, and why?

tangent space:
works when animated,
can be handpainted (well converted from classic bump/height map),
less memory, can be reused on different surfaces (think map brushes)

object space:
faster, no problems with all the "what renderer uses what tangent creation method"
not flexible, not applicable to different object,
cant mirror uvs -> more memory, unique mapping needed

This post might be helpful too.
http://forums.cgsociety.org/showpost...mp;postcount=7

All the links are broken ?
My brain is also out. Too much information, that's a totally new world I'm trying to conquer, but that's awesome.
Thanx for sharing.

Links are broken because the thread is over a year old, welcome to the interweb-u-tron =P I think someone has it archived and saved in PDF format. I forget who tho =/

[ QUOTE ]
All the links are broken ?
My brain is also out. Too much information, that's a totally new world I'm trying to conquer, but that's awesome.
Thanx for sharing.

[/ QUOTE ]
Here is the valuble PDF which helped me imensly. Thanks again Rorshach!

Pleased for you you found this, and that someone (me) still has some files from it.

GOLD

This thread is how I found the polycount forums
TRUE STORY

Sorry,
The thread is old but still valuable, thanks for the link.
I hope I will not boring you but I can't understand how do you make the 3/4 trix for the map.
How do you manage your uv to be able to do a things like that 3/4 trick

big thanks to you kev. Lots of valuable info in here

Uploaded the PDF to the wiki.
http://wiki.polycount.net/CategoryEnvironment

Juicy, thanks Eric.