topic Shadow Glitch in Revit Architecture Forum

Shadow Glitch

jamieXPQP8 — Thu, 19 May 2022 21:22:08 GMT

Does anyone have any ideas on what is causing this graphic shadow glitch. I turned everything off and no matter what is casting the show its messed up. This includes turning off all all linked files CAD and Revit. It's happening on multiple computers on only this revit file on computers with different graphics cards.

Re: Shadow Glitch

ToanDN — Thu, 19 May 2022 21:25:12 GMT

Uncheck this box:

Re: Shadow Glitch

jamieXPQP8 — Thu, 19 May 2022 21:30:26 GMT

Unfortunately, that does not affect the glitch. I have been able to get the glitch to disappear by filtering out a wall type, however, only on one computer which has made me even more confused. When I edited the properties such as the material rather than hiding this wall type, no change to the glitch either.

Re: Shadow Glitch

jamieXPQP8 — Thu, 19 May 2022 21:39:43 GMT

Nevermind, the wall having an impact was a trick, in different views the glitch is still present. I beleive there is something in the model making an insane project that is able to create light through the model. Perhaps an Enscape gltich, however, I cannot find the suspected offender.

Re: Shadow Glitch

jamieXPQP8 — Thu, 19 May 2022 21:53:50 GMT

Disappears when turned to realistic

Re: Shadow Glitch

ToanDN — Thu, 19 May 2022 22:19:40 GMT

What about Shaded / Consistent Colors?

Re: Shadow Glitch

jamieXPQP8 — Thu, 19 May 2022 22:28:54 GMT

All visual styles except realistic has the exact same glitch, which makes me think either a) its because Revit uses a different rendering protocol for realistic (I'm just guessing) and or b) a material is somehow causing crazy reflections or something which is not happening with realistic because it uses the different material settings. However, I tried to see if I could isolate a material and I was unsuccessful.

Re: Shadow Glitch

barthbradley — Thu, 19 May 2022 22:56:15 GMT

This has been happening in Revit for as long as I can remember. I can replicate it by zooming in and out. I can also fix it by zooming in and out.

Re: Shadow Glitch

jamieXPQP8 — Thu, 19 May 2022 23:02:56 GMT

Agreed, except this time I cannot fix it by zooming in and out 🤣

Re: Shadow Glitch

barthbradley — Thu, 19 May 2022 23:09:58 GMT

I would be thinking Corrupt View then. Is Duplicate View the same?

Re: Shadow Glitch

ToanDN — Thu, 19 May 2022 23:12:54 GMT

@jamieXPQP8 wrote:

Agreed, except this time I cannot fix it by zooming in and out 🤣

Tick this box see any improvement.

Re: Shadow Glitch

jamieXPQP8 — Tue, 24 May 2022 19:28:48 GMT

Still no fix yet:

The glitch happens in all views, new or old, 3D, plan or elevation.

The smooth lines check mark is on, and turning on and off does nothing.

I'm more and more confident it has something to do with the walls, however, oddly other items in the file will alter the glitch as they are turned on and off, but only if the walls are still on.

Also, we did an experiment where we put a new wall, thick wall, and generic model between the building casting the shadow and shadow glitch and the glitch seems to ignore any intermediate geometry and stays in the same place.

After trying to isolate the problem, it appears ALL walls in the model - yes every single one creates a tiny glitch that adds up to a whole, so barring replacing every wall in the project which of course is impractical, (and thats assuming new walls don't create a gltich) this seems to be impossible to rectify for the project file.

Re: Shadow Glitch

barthbradley — Tue, 24 May 2022 19:32:20 GMT

Post your file. Let us examine it. Maybe the issue is just on your end. Or Open a Support Case through your Autodesk Account Portal. Put those guys to work on your behalf.

Re: Shadow Glitch

ToanDN — Tue, 24 May 2022 20:02:31 GMT

Does it export or print to PDF that way as well or just on screen?

Re: Shadow Glitch

jamieXPQP8 — Tue, 24 May 2022 20:19:10 GMT

Thanks all. Yes I'm going to open a support case with Autodesk. I can't really upload the file at the moment as the project is not yet public.

It exports to PDF the same way it looks in revit.

Re: Shadow Glitch

Lachlan-JWP — Tue, 24 May 2022 23:44:23 GMT

Have you tried unloading all links? I saw above you mentioned turning them off in view, but Revit does get graphical issues when objects that are too large are in the model.

Re: Shadow Glitch

jamieXPQP8 — Wed, 25 May 2022 18:37:34 GMT

Thanks for this suggestion. One of the links had horribly large extents, however, unloading the link did not fix the problem. This also gave me the idea of linking the problematic model into a different model to see if the shadows still glitched. In the linked model they sadly still glitched. We've given up for now and have photoshopped the views for the submission.