xNormal Baking Issue need help

benbenthepage

Hello! I am working on making a pair of FPS arms for a class and I am currently working on baking the highpoly zbrush sculpt onto the Lowpoly model that I made in Maya. When I do to bake it the areas that are close together appear to be picking up inforomation from the spot next to it. I do not know what to do to fix it and I am looking for some help THANKS!

this is my model in maya with the normal map on the lowpoly model


this is the normal map that I am getting out of xnormal.

ANy help would be great 

JedTheKrampus

You need to use a cage or blockers. Either can prevent those projection errors.

Scruples

Using a cage will fix this, the lazy 10 second fix would be to change the frontal and rear ray distance, lower in this case (also make sure discard back-faces hits is checked). Too low and it won't pick up any surface at all.

benbenthepage

Sorry im still pretty new but what is a cage and how can I set it up, as far as I understand it is somthing that surrounds the whole model, Thanks for your help

benbenthepage

Sorry im still pretty new but what is a cage and how can I set it up, as far as I understand it is somthing that surrounds the whole model, Thanks for your help

Scruples

You should watch/read some material regarding baking, they explain all this in better detail than I could. But, without going into further detail, it's a duplicate of your lowpoly with only it's vertices moved to encompass the highpoly.

Read this thread if you want to understand some of the nuances.
http://polycount.com/discussion/81154/understanding-averaged-normals-and-ray-projection-who-put-waviness-in-my-normal-map/p1

benbenthepage

THAnks Guys I appreciate the Help i got it all figured out and they turned out nice