Normal Map Problem

marcosfd

I have this object and the sides are the same, but one side works and the other don't

Wrong Side



Right Side

huffer

Could the UV's on the side that looks wrong be flipped across U? (They should be all blue when you toggle Shade UVs

marcosfd

All blue

peanut™

When i bake and have such a little error, i startup my photoshop mad skills and paint the troubled areas. Since what i want is to output a texture and not sitting around and press the bake button in Maya.

Wolthera

Maybe you have a flipped face-normal instead of a flipped UV? Check 'cull backfaces'?

Bal

peanut, that's not a "little error", you'll learn a lot more by taking some time to figure out what went wrong, so it doesn't happen next time, then by doing some sloppy fix in Photoshop.

Hard to say what went wrong there without seeing the scene, but yeah something seems wonky with your low poly mesh.

peanut™

Yes true, it's almost better to look into it and figure out what is causing this. This could be the normals of the Highpoly or the cage.

Have you conform the normals ?

AdvisableRobin

If you'd like to upload the scene, I could look at it.

If you're baking with Maya's transfer maps, make sure the high and low poly have two different materials.
Try unlocking the mesh normals and then applying the appropriate edge hardening( if any) and bake again.

marcosfd

@Wolthera

I checked and it's all normal, but thanks for the information I didn't knew about that function

@peanut

I'm really not sure what you are asking, but if it's about normal flipped I have checked and it's good on both models.

@AdvisableRobin

Thanks for the tip with materials, but it's not what is causing this.

Here's a link to the scene: https://dl.dropboxusercontent.com/u/97019479/NormalMapBaking.mb

Bal

No Maya 2015 here, if you save it to an .ma instead of an .mb (which you should always be doing anyways really), I might be able to take a look.

marcosfd

Here is the .ma version https://dl.dropboxusercontent.com/u/97019479/NormalMapBaking.ma

Bal

Everything works fine here, I'm betting it's something wrong with your shader, or visualization, normal map and mesh are fine.
What kind of shader are you throwing onto this?

huffer

Hey, maybe it's a flipped green channel, change tangent space under shape attribute to right or left handed with shaders on, and I remember a bug where the tangent space flipped by itself, you had to press 3 and 1 to make it normal.

marcosfd

@Bal

ShaderFX, and i'm viewing it on maya 2.0 viewport

@huffer

I'll search how to do that

marcosfd

@huffer

Tested and still wrong
I've pressed 1 and 3 with both right and left handed option

huffer

Are you baking in xnormal?

marcosfd

I'm baking in maya with transfermap

huffer

Well..no clue, I tested with your texture (scaled UV's to fit) and it looks good here

AdvisableRobin

Ok, so I had absolutely no problems. The bake came out fine.

I would try exporting the object and reimporting into a new scene. What do your transfer maps settings look like? If you're using the search envelope does it fully enclose the highpoly?

marcosfd

@AdvisableRobin

Yes it's fully enclosing them(with the exception being where the low polly doesn't have geometry)

Here is a picture of my settings

AdvisableRobin

Try setting the max search depth to 0.

marcosfd

Same result, only one side looks good and the bad side still show this artifact in some angles.

AdvisableRobin

Try viewing the asset and normal map in another program like Unity or Marmoset, it could just be Maya's problem.

marcosfd

I imported it to unity and it's fine, guess it's a bug in maya

Thanks all for the help!

peanut™

This almost turned out to be a rescue operation, thanks polycount ! :poly114b:

Clark Coots

Viewport 2.0 has frequent viewport visual bugs. Did you look at it in High Quality Rendering?