Baking AO trouble.

Aleks_T · Oct 2017

How to bake a correct AO map? Why my map looks wrong?

Image: https://us.v-cdn.net/5021068/uploads/editor/f0/tc0qzz3m59be.png

EarthQuake · Oct 2017

Try the uniform option in the AO settings.

Aleks_T · Oct 2017

It's better, but not enough.

EarthQuake · Oct 2017

That looks correct to me, can you specify what is wrong with it?

Aleks_T · Oct 2017

The correct version shows the dark corners.

EarthQuake · Oct 2017

In that image the corners have a lighter strip, or highlight, as well. This is because the surface is beveled, the areas that are lighter face out at roughly a 45 degree angle while the larger planes are perpendicular - being at a 45 results in less occlusion. The larger you make the bevel, the less occluded, and thus brighter, those faces will be. From a rendering and physical accuracy perspective this is the correct result, and actually the first image is more accurate and correct. Though that is not what artists generally expect, which is why we added the uniform option.

The last shot you've shown is darker overall, which is probably a matter of gamma space. If you load your AO map as sRGB rather than linear you'll see darker occlusion.

Here's some images with various settings

Uniform off, linear space:

Image: https://us.v-cdn.net/5021068/uploads/editor/6n/xqdvxg9sr81m.png

Uniform on, linear space:

Image: https://us.v-cdn.net/5021068/uploads/editor/wh/68t59nrgax85.png

Unfirom on, sRGB (gamma) space:

Aleks_T · Oct 2017

My curvature map has the same problem, but little less.

Baking AO trouble.

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