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Parts of wall disappear in 3D when shadows added

11 ANTWORTEN 11
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Nachricht 1 von 12
stephen.melhuish
547 Aufrufe, 11 Antworten

Parts of wall disappear in 3D when shadows added

I have a Revit model that has a thin cement wall added over the top of an existing brick wall. The existing brick wall is in the Existing Phase and the Render is in the New Construction Phase.

When i view the model in Perspective it is ok UNTIL I turn on the Sun (Graphic Display Options: Lighting), when the new Construction Phase cement layer partially disappears. Any thoughts ?

11 ANTWORTEN 11
Nachricht 2 von 12
barthbradley
als Antwort auf: stephen.melhuish

What's the View Phase Filter set to? 

 

Is the issue replicable? Create another like View and see.  

Nachricht 3 von 12

Strange, I take a different 3D view, this time of the rear and get a different result for 2 different locations of the same elevation (see attached)

Nachricht 4 von 12
barthbradley
als Antwort auf: stephen.melhuish
Nachricht 5 von 12
barthbradley
als Antwort auf: stephen.melhuish

Are you using sketchy lines?  

 

Try disabling Hardware Acceleration.  

 

Help: Hardware Acceleration (autodesk.com)

Nachricht 6 von 12
stephen.melhuish
als Antwort auf: barthbradley

Unfortunately still no luck I'm afraid. I disabled hardware acceleration and re-started revit but still got the same problem. I'll re-do the perspective views and see if that will resolve matters

Nachricht 7 von 12
ToanDN
als Antwort auf: stephen.melhuish

How thin is the plaster wall?

Nachricht 8 von 12
stephen.melhuish
als Antwort auf: ToanDN

The cement render is just 20mm thick. However, the same is also occuring with timber cladding which is 20mm thick with 25mm air behind

Nachricht 9 von 12
BIM-CONG
als Antwort auf: stephen.melhuish

It seems like that the two "walls" including brick and cement ara overlapped.

CONG XU
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Nachricht 10 von 12
stephen.melhuish
als Antwort auf: BIM-CONG

They don't overlap but I have found that if I move the New Construction wall I placed over the Existing wall away from the Existing wall then it seems to work.

Nachricht 11 von 12
syman2000
als Antwort auf: stephen.melhuish

Do you have any CAD link or heavy 3d family inside the project?

Check out my Revit youtube channel - https://www.youtube.com/user/scourdx
Nachricht 12 von 12
BIM-CONG
als Antwort auf: stephen.melhuish

Emmm it's a little strange, can you post a partial model with this issue?

CONG XU
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