Baking Normal Maps - Face weighted normals ignored on bake #59362

New Issue

Joanna Vetulani · 2018-12-14T12:33:24+01:00

Joanna Vetulani commented

2018-12-14 12:33:24 +01:00

System Information
Operating system: Ubuntu 18.04
Graphics card: GTX 1080

Blender Version
Broken: 2.80 26d5a362ed
Worked: Never/In Blender 2.79 Internal with the Blend4Web addon normal tools

Bake a high poly cube with subsurf and rounded edges, with flat walls onto a regular cube with bevels and face weighted normals and the new normals are ignored.
The bake should be similar to a bake with control loops near the the edges, with large flat surfaces having the neutral normal color (RGB 128,128,255) instead of a gradient over the surface - as if no face weighting is being done.

Incorrect result:

Correct result:

Blender file - contains a collection for the high poly, and two collections with different low poly setups.
BakeBoxSurfaceWeightedNormals.blend

System Information Operating system: Ubuntu 18.04 Graphics card: GTX 1080 Blender Version Broken: 2.80 26d5a362ed Worked: Never/In Blender 2.79 Internal with the Blend4Web addon normal tools Bake a high poly cube with subsurf and rounded edges, with flat walls onto a regular cube with bevels and face weighted normals and the new normals are ignored. The bake should be similar to a bake with control loops near the the edges, with large flat surfaces having the neutral normal color (RGB 128,128,255) instead of a gradient over the surface - as if no face weighting is being done. Incorrect result: ![BakeResultFaceWeightedIncorrect.png](https://archive.blender.org/developer/F5951772/BakeResultFaceWeightedIncorrect.png) Correct result: ![BakeResultFaceWeightedCorrect.png](https://archive.blender.org/developer/F5951776/BakeResultFaceWeightedCorrect.png) Blender file - contains a collection for the high poly, and two collections with different low poly setups. [BakeBoxSurfaceWeightedNormals.blend](https://archive.blender.org/developer/F5951803/BakeBoxSurfaceWeightedNormals.blend)

Joanna Vetulani commented

2018-12-14 12:33:24 +01:00

Added subscriber: @Jasiek

Sebastian Parborg commented

2018-12-14 14:18:01 +01:00

Added subscribers: @dfelinto, @ZedDB

Dalai Felinto was assigned by Sebastian Parborg

2018-12-14 14:18:01 +01:00

Sebastian Parborg commented

2018-12-14 14:18:01 +01:00

I guess this is a job for you @dfelinto .

Dalai Felinto commented

2018-12-14 23:24:38 +01:00

We are prioritizing bugs that were introduced on 2.8. This is more of a TODO for Cycles baking than a bug. It may be a good task for new developers to pick though.

Joanna Vetulani commented

2018-12-15 16:51:58 +01:00

Hmm, I guess you're right about it being a TO DO feature for Cycles.

I did a quick test in 2.7 with a low poly cube with surface weighted normals just to confirm that it indeed did work in internal (with the blend4web adddon to achieve surface weighted normals)
baked the normal map from a high poly rounded cube and the result seems mostly correct (depending on how you make your seems you get ugly seems sometimes).

Blend file - second layer includes a preview with a light and material of how the normal map behaves on the object.
BakeBox2.7_2.blend

Hmm, I guess you're right about it being a TO DO feature for Cycles. I did a quick test in 2.7 with a low poly cube with surface weighted normals just to confirm that it indeed did work in internal (with the blend4web adddon to achieve surface weighted normals) baked the normal map from a high poly rounded cube and the result seems mostly correct (depending on how you make your seems you get ugly seems sometimes). ![NormalBakeTest2.7_editedNormalsOnLowPoly.png](https://archive.blender.org/developer/F5962675/NormalBakeTest2.7_editedNormalsOnLowPoly.png) Blend file - second layer includes a preview with a light and material of how the normal map behaves on the object. [BakeBox2.7_2.blend](https://archive.blender.org/developer/F5962678/BakeBox2.7_2.blend)

Dalai Felinto commented

2018-12-18 23:45:01 +01:00

Changed status from 'Open' to: 'Archived'

Dalai Felinto closed this issue

2018-12-18 23:45:01 +01:00

Dalai Felinto commented

2018-12-18 23:45:02 +01:00

I will close this for now. Keep an eye on D3998 which seems to handle this TODO.

I will close this for now. Keep an eye on [D3998](https://archive.blender.org/developer/D3998) which seems to handle this TODO.

Joanna Vetulani commented

2019-07-01 15:09:33 +02:00

In #59362#583876, @dfelinto wrote:
I will close this for now. Keep an eye on D3998 which seems to handle this TODO.

Still no progress in the other thread, has anyone done any work on this?
It is a crucial issue making 2.80 useless for normal baking for a lot of people in gamedev (and probably outside of it too), myself included.

> In #59362#583876, @dfelinto wrote: > I will close this for now. Keep an eye on [D3998](https://archive.blender.org/developer/D3998) which seems to handle this TODO. Still no progress in the other thread, has anyone done any work on this? It is a crucial issue making 2.80 useless for normal baking for a lot of people in gamedev (and probably outside of it too), myself included.

Andrei commented

2020-01-10 10:44:49 +01:00

Added subscriber: @Constab

Andrei commented

2020-01-10 10:44:49 +01:00

Hi Guys,

Do we have any news about it?
I spent a few days to trying to do baking normal map with average normals, but failed...
I thought that issue was in shader of game engine... But according to this topic looks like this is blender issue.

So do we have some workaround for baking average normals?

@Jasiek , maybe you can suggest some woraround?

Thanks,
Andrei.

Hi Guys, Do we have any news about it? I spent a few days to trying to do baking normal map with average normals, but failed... I thought that issue was in shader of game engine... But according to this topic looks like this is blender issue. So do we have some workaround for baking average normals? @Jasiek , maybe you can suggest some woraround? Thanks, Andrei.

Joanna Vetulani commented

2020-01-13 16:31:49 +01:00

@Constab I have not found a solution to this yet, other than exporting to Substance or other program.

This is an extremely needed feature.

@Constab I have not found a solution to this yet, other than exporting to Substance or other program. This is an extremely needed feature.

Vadik commented

2021-08-23 15:53:36 +02:00

Added subscriber: @sid350

Doug Cox commented

2022-04-04 21:37:14 +02:00

Added subscriber: @ziflin

Doug Cox commented

2022-04-04 21:43:41 +02:00

Was this issue ever addressed? I see that D3998 was marked as abandoned as well, though I'm not sure it actually addressed this issue.

Was this issue ever addressed? I see that [D3998](https://archive.blender.org/developer/D3998) was marked as abandoned as well, though I'm not sure it actually addressed this issue.

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Baking Normal Maps - Face weighted normals ignored on bake #59362