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All shadows wrong in the perspective views in Revit 2021

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Nachricht 1 von 18
f.annoscia1XRNMD
1361 Aufrufe, 17 Antworten

All shadows wrong in the perspective views in Revit 2021

All the shadows are wrong in the perspective views. I'm desperate! In the plans the windows are ok, they aren't on different planes. I use a Surface 6 Pro 16 GB RAM with integrated graphic card. Ombre errate.jpgPianta corrtta.jpg

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Nachricht 2 von 18
hmunsell
als Antwort auf: f.annoscia1XRNMD

Interesting.... haven't seen that happen before. is there any way you can upload the mode for us to look at? maybe just the 2 facades in the view?

Howard Munsell
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Nachricht 3 von 18
JoshEKing
als Antwort auf: f.annoscia1XRNMD

Maybe I'm not seeing specifically what you are referring to...

 

There seems to be a lot of glass transparency that probably should not be there in a simple "Hidden Line" view.  Or, possibly glass that's completely missing?

Nachricht 4 von 18
hmunsell
als Antwort auf: JoshEKing

I figured they were referring to the inconsistent shadows from the mullions in the windows :-). if the window is the same, the shadows should not be all over the place like that. 

Capture.JPG

Howard Munsell
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Nachricht 5 von 18
syman2000
als Antwort auf: f.annoscia1XRNMD

I assume this is what you are referring to. Have you print out to PDF and see if the shadow behave strangely?

 

shadow.png

Check out my Revit youtube channel - https://www.youtube.com/user/scourdx
Nachricht 6 von 18
JoshEKing
als Antwort auf: hmunsell

Ah. That wasn't how that read to me, but I see it now.

In the snippet of plan that was provided, what are the 2 planes to the right of the window? (I can't tell which direction is interior/exterior from the snippet.) Is it possible those are some sort of surfaces that are projecting extraneous shadows?
Nachricht 7 von 18

It seems to me that the shadows are wrong even where the frame of the building is. I replaced the glass with a wooden panel in the windows, because the glass was "transparent" in the "hidden lines" mode.

Shadows are correct in orthogonal view.

@syman2000yes, shadows are wrong in PDF printing.

 

Nachricht 8 von 18
hmunsell
als Antwort auf: f.annoscia1XRNMD

Is there any way you can upload the mode for us to look at? you could duplicate the model and delete everything but he the 2 facades in the view if the model is too big.?

Howard Munsell
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When I select a view with lots of windows, the shadows are wrong. When I create a view, in the same worksheet as the project, but with fewer front windows, the program generates correct shadows. Now I tried: in one view the shadows came well! In the other view, like that, they're wrong... But I have to deliver the views they asked for. What do you recommend to get around this issue? I have to prepare and deliver the views I have been asked for.

 

Ombre buone vista 1l forum.jpgOmbre errate vista 1l forum.jpg

Nachricht 10 von 18
hmunsell
als Antwort auf: f.annoscia1XRNMD

here is the model OP sent me via private message. I verified with OP that it is ok to post it :-). Changes may have been made by the OP since this model was sent to me (removal of DWG links, consolidation of Design Options, removal of excess levels). 

 

The file is in 2021 format....

Howard Munsell
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Nachricht 11 von 18
RDAOU
als Antwort auf: f.annoscia1XRNMD

@f.annoscia1XRNMD 

 

Your generic reply various solution "quote: Thanks. I will have to do some testing" got me curious enough to check profile and this 3 months old post got my attention...wasn't around back then

 

Judging from @hmunsell reply and report of the model, I figured I should check if you managed with those views you were trying to create or if you are still doing some testing :zwinkerndes_Gesicht:

 

ciao

 

Fix 1Fix 1Fix 2Fix 2

YOUTUBE | BIM | COMPUTATIONAL DESIGN | PARAMETRIC DESIGN | GENERATIVE DESIGN | VISUAL PROGRAMMING
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Nachricht 12 von 18
truevis.com
als Antwort auf: f.annoscia1XRNMD

Try making the glass material in those windows opaque. See if anything changes.

Nachricht 13 von 18
f.annoscia1XRNMD
als Antwort auf: RDAOU

@RDAOU I haven't solved the problem yet.

I see the views you have posted are perfect. How did you do?

 

I discovered, in February, that by copying the 3d model into a new Revit file the problem of the wrong shadows disappeared. In this way I was able to do the job and deliver it. However, I still don't understand what caused the problem, to prevent it from happening in the new files. Could shadows be disturbed by the new levels, which I create in the file? Copying the 3d model to the new file does not export the levels. Now in new jobs I'm trying to work without creating levels, I use the two predefined levels, but it's very difficult to work like this. I noticed that levels and shadows and perspective views are linked. Deleting a layer also erases the views. I currently use Revit with little freedom. I am not sure, however, that this is the solution.

 

Nachricht 14 von 18
f.annoscia1XRNMD
als Antwort auf: truevis.com

Thank you. I tried to change the window material, but I didn't solve the problem.

Nachricht 15 von 18
ToanDN
als Antwort auf: f.annoscia1XRNMD

Turn off imported/linked CAD drawings. They may have geometry too far from the origin.
Nachricht 16 von 18
RDAOU
als Antwort auf: f.annoscia1XRNMD


@f.annoscia1XRNMD wrote:

@RDAOU I haven't solved the problem yet.

I see the views you have posted are perfect. How did you do?

 


Well...in short, Cleaned some of the mess that little bit of freedom left behind...Freedom in Revit does not exist if you want freedom, use sketchup . Old users have a slogan "do what Revit Wants"

 

Copying to a clean model should tell you something!! "Clean"

 

The levels and elements hosted on those levels are indeed a mess but check again what didn't carry over besides the levels, you will know what caused it...It is the third messy thing after Levels and the double/triple nested groups of arrayed curtain walls which barely function stand alone

 

 

 

YOUTUBE | BIM | COMPUTATIONAL DESIGN | PARAMETRIC DESIGN | GENERATIVE DESIGN | VISUAL PROGRAMMING
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Nachricht 17 von 18
f.annoscia1XRNMD
als Antwort auf: RDAOU

@RDAOU

 

Can you explain the problem of windows better? I don't know if I interpreted what you wrote right.

I tried to make the openings in other cleaner files, but I still had problems with shadows.

 

Nachricht 18 von 18
RDAOU
als Antwort auf: f.annoscia1XRNMD

@f.annoscia1XRNMD 

 

I am not sure if this simplifies it...

  1. When you group two curtain walls and a handrail ... it becomes Group 1
  2. When you arrayed Group 1, you are created a set of grouped instances ... these are Group 2 (with a nested Group 1)
  3. Then you grouped the array to copy to various floors ... this became Group 3 (a group with 2 layers of nested Groups 2 and 1)

A curtain wall raw as it is, is a group of element. Nesting it over and over is over-exhaustive, does not function well in all aspects and affects your model performance (including graphics). Add to that, you have used them in multiple design options (which is the 3rd messy element that did not carry over when you copied to a new file. On your next project simply use a normal window family (and if for one reason or the other you want to package/combine multiple curtain walls into one complex element, use Assemblies instead of Groups. )

 

I believe that the root cause of the problem is the bits and pieces of tips and advice you have been taking from here and there which accumulated and led to this. And most probably with an average - to below average - GPU it made the graphic outcome look even worse. 

 

 

YOUTUBE | BIM | COMPUTATIONAL DESIGN | PARAMETRIC DESIGN | GENERATIVE DESIGN | VISUAL PROGRAMMING
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