Problems rendering glass transparent

Problems rendering glass transparent

stephen.melhuish
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Message 1 of 19

Problems rendering glass transparent

stephen.melhuish
Contributor
Contributor

I appreciate there are posts that attempt to answer this problem, but I am simply at a loss to figure this out. When I view my model in 'realistic', my curtain wall glass is transparent. When I view it 'rendered' it isn't. I've tried everything. I've checked the material is transparent and reviewed previous help but without luck. I enclose images below on a pdf.

 

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Message 2 of 19

hmunsell
Mentor
Mentor

what is your Glass material settings?

 

can you upload the model so we can look at the settings?

Howard Munsell
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Message 3 of 19

barthbradley
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Message 4 of 19

stephen.melhuish
Contributor
Contributor

Hi J,

 

thanks for your offer of help. I enclose a purged and reduced model which includes the curtain wall and therefore material. Hope you - or someone can help

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Message 5 of 19

barthbradley
Consultant
Consultant

Assign a Glass Asset to your Material.  There's a boat-load of them to choose from.  Just type "Glass" into Search Bar. 

 

Glass Asset.png

 

Ah! Here's your problem.  The glazing Geometry is not associated to a Material Parameter that would allow you to assign a Project Material to it. You need to Edit Family and do this:

 

Glazing.png

 

 

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Message 6 of 19

stephen.melhuish
Contributor
Contributor

Barth. That's done. ive tried 3 different glass materials to the asset and all have the same result of a cloudy solid effect rather than transparent. As I said, it's transparent in 'realisitic' but not when rendered

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Message 7 of 19

barthbradley
Consultant
Consultant

I added a little something to my post.  All will be right as rain when you associate a Material Parameter to the glass geometry in the Family.  

 

Have fun! 

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Message 8 of 19

stephen.melhuish
Contributor
Contributor

Afraid not Bath. Tried it. Sorry

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Message 9 of 19

barthbradley
Consultant
Consultant

What Asset did  you choose?

 

Gazing1.png

 

Maybe something got wigged out with the Material at your end. Try Creating a New Material, assign a Glass Asset to it and use that new one for your Curtain Panel glazing.   

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Message 10 of 19

barthbradley
Consultant
Consultant

Maybe turn on the lights?  

 

Nighttime.png

 

All joking aside, have you tried a different Sun Setting?  

 

😉

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Message 11 of 19

stephen.melhuish
Contributor
Contributor

Barth, your efforts are appreciated. I've turned on internal lights. I've rendered with external sun and internal lighting. I've tried different phase filters. I have 3 types of glass with different assets. And the result is always the same.

 

The render you did of my model achieved transparent glass. Did you use my materials ? I've tried everything suggested now and beginning to wonder if there's something wrong with my Revit or I'm missing an update !! ??

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Message 12 of 19

stephen.melhuish
Contributor
Contributor

Finally I have had some success. I downloaded a BIM object curtain wall with a glass titled NBS Glass which does seem very limited with it's assets (transparency, bump etc) but does seem to work. I'll continue to investigate this further and offer a conclusion to this post

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Message 13 of 19

barthbradley
Consultant
Consultant

this is driving me fricking crazy!!! I have zero-zip-nada issues. I can't even purposely fail the render transparency.  If you have tried everything I have suggested to no avail, then the issue has got to be a local one. Maybe the view or session got corrupted. Have you tried to Render Transparency in other Views/Projects?  Have tried repairing, rebooting and restarting Revit.  Applied latest updates yet? Maybe it's the Graphic Card? Does it meet specs?   Got any third-party Add-ins? Disable them.  

 

https://knowledge.autodesk.com/support/revit-products/learn-explore/caas/sfdcarticles/sfdcarticles/H...

 

…...

 

 

 

 

 

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Message 14 of 19

hmunsell
Mentor
Mentor

@barthbradley  i was able to duplicate the issue on my end using the downloaded model. 

 

its the material in the Wicona Panel family. the glass is not mapped to the material parameter.

  • edit the Panel family
    • select the glass panels
      • in the properties, pick the box to the Right of the material
      • pick the Material option
    • reload the panel into your model.
  • from there you can change the glass material as needed.

not sure where the Glass, Clear Glazing 2 & 3 came from but they are not duplicates of the Out or the Box "Glass, Clear Glazing". Duplicate the "Glass, Clear Glazing" material and adjust as needed.

Capture.JPG

Capture 4.JPG

 Capture 3.JPG

 

 

Howard Munsell
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Message 15 of 19

georgehobel
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Collaborator

there are lots of us who have local issues...

 

George Hobel
Reflections of Charlotte
Residential Building and Design
Message 16 of 19

barthbradley
Consultant
Consultant

@hmunsell: We are both singing from the same hymn sheet.  See my sentence in Message #3 that starts off with "AH!...", and see Message #7 in which I emphasize what I said in Message #3.       

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Message 17 of 19

hmunsell
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Mentor

As Usual, you are correct sir 🙂 i saw the downloaded file and just started playing with it. i did watch that video though, good stuff... 

 

@stephen.melhuish do what Barth said... i did pretty much the same thing and it worked fine for me too.  only difference is i didn't add the glass asset to Your material, i duplicated the existing "Glass, Clear Glazing" material.

Howard Munsell
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Message 18 of 19

barthbradley
Consultant
Consultant

@georgehobel wrote:

there are lots of us who have local issues...

 


Sorry to hear, buddy. Happens to a lot of guys. I'm told it is actually quite common and nothing to be embarrassed about.  

 

😉

 

 

 

Message 19 of 19

georgehobel
Collaborator
Collaborator

Dude... I was talking about my mouse!

George Hobel
Reflections of Charlotte
Residential Building and Design
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