topic Re: Model has turned dark/ is shaded and won't go back in AutoCAD Forum

Model has turned dark/ is shaded and won't go back

twebert81 — Tue, 11 Jul 2023 23:20:15 GMT

I have had a few 3D models turn dark for some reason and I'd like to get to the bottom of what's going on.

It makes them had to work with and the change seems permanent. I've been reverting to earlier revs but this is incredibly inefficient.

The models contain xref parts and also many blocks.

I think it might have to do with these items being edited but unsure. It's the same look as when editing either of these feature.

Normally the rest of the model that is off limits darkens when that operation is happening but now I'm not editing anything in place and the whole 3D model is still darkened/shaded.

Paper space looks fine but the viewports are also darkened. I was using 2023 but just updated to 2024 to see if it would help with no luck.

What's going on?

Re: Model has turned dark/ is shaded and won't go back

3wood — Wed, 12 Jul 2023 00:09:02 GMT

Have you added new lights?

Re: Model has turned dark/ is shaded and won't go back

twebert81 — Wed, 12 Jul 2023 00:21:08 GMT

Lights? Can lights add negative light?

I don't believe so.

Is it a rendering feature? I don't currently use any rendering at all.

Re: Model has turned dark/ is shaded and won't go back

paullimapa — Wed, 12 Jul 2023 02:10:57 GMT

If those objects are inside an xref, perhaps it has to do with Xref fade control XDWGFADECTL:

If objects are on a Locked Layer the fading has to do with LAYLOCKFADECTL:

https://blogs.rand.com/support/2014/06/autocad-layer-locking-fade-laylockfadectl.html

Re: Model has turned dark/ is shaded and won't go back

twebert81 — Wed, 12 Jul 2023 02:19:24 GMT

No, it's the whole model. Not just Xrefs and blocks.

I feel like it's a bug, hopefully there's a work around or at least a way to avoid it happening again.

Re: Model has turned dark/ is shaded and won't go back

paullimapa — Wed, 12 Jul 2023 02:30:53 GMT

Have you tried closing AutoCAD and relaunching the program again to see if that fixes the problematic dimmer models?

Re: Model has turned dark/ is shaded and won't go back

twebert81 — Wed, 12 Jul 2023 02:36:06 GMT

I have, and multiple AutoCAD versions

Re: Model has turned dark/ is shaded and won't go back

paullimapa — Wed, 12 Jul 2023 02:37:32 GMT

Perhaps share screen shot of how it looks when dimmed vs another screen shot of how it should look?

Re: Model has turned dark/ is shaded and won't go back

twebert81 — Wed, 12 Jul 2023 03:18:48 GMT

Re: Model has turned dark/ is shaded and won't go back

paullimapa — Wed, 12 Jul 2023 04:25:54 GMT

Since I can’t actually see your edits on the model when it suddenly goes dark even when you’re not editing the block xref in place I would have to say that it’s your graphics card. It may have been compatible in 2023 but not with 2024. You can try setting GFXDX12 to 0 and see if that makes a difference

Re: Model has turned dark/ is shaded and won't go back

3wood — Wed, 12 Jul 2023 04:32:11 GMT

There is a default lighting.

Add a new light may cause the default lighting being turned off.

1. Default lighting is on

2. Add a new light

3. New light added and default lighting is off.

Re: Model has turned dark/ is shaded and won't go back

Valentin_CAD — Wed, 12 Jul 2023 09:31:40 GMT

@twebert81 ,

Check your "Face Settings" in your "Visual Styles Manager ", and set "Face style" to Gooch - for Conceptual.

Or right click the visual style and click "reset to default".

Re: Model has turned dark/ is shaded and won't go back

twebert81 — Wed, 12 Jul 2023 21:53:01 GMT

Nope...

Re: Model has turned dark/ is shaded and won't go back

3wood — Thu, 13 Jul 2023 02:11:39 GMT

Can you check variable DEFAULTLIGHTING and see if it is set to 1?

Re: Model has turned dark/ is shaded and won't go back

twebert81 — Thu, 13 Jul 2023 02:24:27 GMT

It is:(

I think it might be a deep bug rather than a setting.

Re: Model has turned dark/ is shaded and won't go back

paullimapa — Thu, 13 Jul 2023 02:41:39 GMT

Did you try my reply Message #10 solution:

https://forums.autodesk.com/t5/autocad-forum/model-has-turned-dark-is-shaded-and-won-t-go-back/m-p/12095554/highlight/true#M1110355

Re: Model has turned dark/ is shaded and won't go back

twebert81 — Thu, 13 Jul 2023 02:52:04 GMT

I'm not sure what 'GFXDX12' is?

Given that an uncontaminated version off the drawing works fine I can't see how it is graphics related anyway.

The screen shots above have both files displaying on different screens. One displaying the fault and the other is still fine.

Re: Model has turned dark/ is shaded and won't go back

Valentin_CAD — Thu, 13 Jul 2023 09:02:38 GMT

@twebert81 ,

Post the drawing.

Re: Model has turned dark/ is shaded and won't go back

twebert81 — Thu, 13 Jul 2023 09:06:22 GMT

I can but I'll have to heavily modify it, so it'll be a few days.

I'll do the same with an uncorrupted version.

Re: Model has turned dark/ is shaded and won't go back

Valentin_CAD — Thu, 13 Jul 2023 09:26:16 GMT

@twebert81 ,

Apply the suggestion from this link.

3D solids disappear, become dark, or do not display correctly with shaded (fast) visual styles in AutoCAD products