Problem baking normal map with Blender and XNormal

matus_kacmar · Sep 2018

Hi I just started to learn 3D modeling and texture baking. I've tried to bake normal map for simple objects like sword or an axe. But I always got an artifacts. So I've decided to try this process on much simpler material.
Here is classic cube low polly:

I've used texture atlas to unwrap it manually. Then I've created duplicate and started with high polly cube:

After adding all the details to my high polly cube, I've made a copy of an low polly cube for the cage.

Then I've exported all objects one by one by the selection as a .obj file.
Here is my XNormal setup:

My problem is that I can get those edges of the cube on a normal map. I have no artifacts. But I can't get those inward extrusions.

Can someone please help me ? I've kinda tried everything.

Steamy_Steve · Sep 2018

Check this, it explains how to solve just your problem (among the others): http://docs.cryengine.com/display/SDKDOC2/Common+XNormal+Baking+Errors+and+How+to+Solve+Them

Ghogiel · Sep 2018

I don't see any connecting edges on the high for the indents, so I assume they are floaters. In that case I guess the normals could be inverted or the cage doesn't extend outwards enough to capture them in the bake.

matus_kacmar · Sep 2018

@Steamy_Steve Thank you for the link. I was able to render geometry in the middle of the face of the cube by tweaking size of low and high polly models. I still have seams on the edges that are round but I guess I'll try to read more on normal map baking and I'll play with it. @Ghogiel connecting edges are there but for some reason blender does not renders them in object mode wire frame view.

Problem baking normal map with Blender and XNormal

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