Sculpt glitches when using Eevee #53837

New Issue

Dalai Felinto · 2018-01-19T13:33:45+01:00

Dalai Felinto commented

2018-01-19 13:33:45 +01:00

Blender Version
Broken: 97e2b0c594
Worked: Not sure if it ever did.

Short description of error
Artifacts (light variation, ghosting) when sculpting with Eevee.

Exact steps for others to reproduce the error

Open the following file and continue sculpting:
dyn28.blend

You will soon get artifacts like:

To reproduce from scratch you can start with a sphere, subdivide a few times. I had to turn dyntopo and sculpt a bit before turning off. But I'm not sure if it's related, or just that dyntopo gives me a particularly messy mesh.

**Blender Version** Broken: 97e2b0c594a0 Worked: Not sure if it ever did. **Short description of error** Artifacts (light variation, ghosting) when sculpting with Eevee. **Exact steps for others to reproduce the error** Open the following file and continue sculpting: [dyn28.blend](https://archive.blender.org/developer/F1891964/dyn28.blend) You will soon get artifacts like: ![ghost.jpg](https://archive.blender.org/developer/F1891974/ghost.jpg) To reproduce from scratch you can start with a sphere, subdivide a few times. I had to turn dyntopo and sculpt a bit before turning off. But I'm not sure if it's related, or just that dyntopo gives me a particularly messy mesh.

Dalai Felinto commented

2018-01-19 13:33:45 +01:00

Added subscriber: @dfelinto

blender-admin commented

2018-01-19 13:33:45 +01:00

#52246 was marked as duplicate of this issue

Campbell Barton was assigned by Dalai Felinto

2018-01-19 13:52:55 +01:00

Dalai Felinto commented

2018-01-19 13:52:55 +01:00

Added subscriber: @fclem

Dalai Felinto commented

2018-01-19 13:52:55 +01:00

So, originally I created a file in 2.79, used dyntopo a bit, turned it off. If I open the file in 2.8 I get artifacts. This is the file originally shared above. However, if I export the file as obj and re-import it, the mesh is fine (I had to clear Sharp for edges and make it Flat shaded to match the look of the other mesh).

In fact if you put both meshes side-by-side you can see that the dyntopo one is darker the moment you start sculpting (the one on the right):

dyn28_plus_obj.blend

The same is valid for Clay.

So, originally I created a file in 2.79, used dyntopo a bit, turned it off. If I open the file in 2.8 I get artifacts. This is the file originally shared above. However, if I export the file as obj and re-import it, the mesh is fine (I had to clear Sharp for edges and make it Flat shaded to match the look of the other mesh). In fact if you put both meshes side-by-side you can see that the dyntopo one is darker the moment you start sculpting (the one on the right): [dyn28_plus_obj.blend](https://archive.blender.org/developer/F1892093/dyn28_plus_obj.blend) ![dark.png](https://archive.blender.org/developer/F1892102/dark.png) The same is valid for Clay.

Clément Foucault commented

2018-01-21 23:45:46 +01:00

Ok got it it's caused by TAA. Put the viewport samples to 1 and it disappear.

Now I (or someone else) need to disable TAA when doing a sculpting stroke...

Ok got it it's caused by TAA. Put the viewport samples to 1 and it disappear. Now I (or someone else) need to disable TAA when doing a sculpting stroke...

Dalai Felinto commented

2018-01-25 13:51:43 +01:00

Added subscribers: @GreenXenith-3, @VukGardasevic