Streaky Blocks and Poor Qaulity - Cloud Renderings

[Anonymous]

I'm experiencing issues with rendering in cloud that is causing streaky blocks of degraded imagery and random colors, poor quality textures when I'm rendering, even with 'extra large' images.  It doesn't matter where I take the view from, all of the renderings come out like the images attached here. I researched this for a while and one answer pointed to poor geometry with a family... well I deleted a ton of families.. any families I had loaded since the problem began to occur and nothing. I can't locate the problem. Please help!

[barthbradley]

I  doubt "poor geometry" is the culprit. I would suspect the resolution of Material's Rendering Appearance Image and rendering time.  

...have you installed the Autodesk Material Library Medium Resolution Image Library?  

https://knowledge.autodesk.com/support/autocad/learn-explore/caas/sfdcarticles/sfdcarticles/How-to-i...

[Anonymous]

I rendered it as an “extra large” image (9 pts to render in cloud) and this was the final image after rendering. 

[Anonymous]

1. This is another example. You can see It should be a high quality image By the resolution on the upper right hand sign. 

1.6 MB of 1.6 MB

[Anonymous]

[barthbradley]

Yuck! I got to see the RVT.  Post it. 

[Anonymous]

I know! Awful. See attached.

[barthbradley]

Nothing attached, @Anonymous.  Or, is that the point?  

[Anonymous]

Hi there, sorry about that. The file size was too large, please find link below. 

https://drive.google.com/file/d/1fDj33vJiaK_eSyIXO8tjSIuVx-j1zhms/view?usp=sharing 

[Anonymous]

any thoughts? 

[Anonymous]

Hello,

were you able to look at my file? 

[bill_gilliss]

Hi, Alexandra -

Had a little time on my hands these days, so thought I'd look at your issue.

I rendered your View 11 in Revit 2019 both on the desktop and in the cloud, and then updated the model to Revit 2020 and rendered both ways again. Some materials are missing, but it doesn't look as though there is anything wrong with the model itself.

(Notice that the artificial lights are working only in the Revit 2019 desktop render, even though they are turned on and the lighting scheme is set to "Sun and Artificial" throughout. Also, you have almost 800 artificial lights in this model - grouping them and having only the ones that affect each view will cut your rendering times.)

So. Let's try to eliminate other possible sources of this problem.

• Hardware: This is a cloud render, so it's not a video card issue or driver issue.
• Software: The cloud rendering engine (wherever that actually is) seems to be working okay. I have to assume that we are both being served by the same code there.
• Uploading: Is this the only model that exhibits this problem? If so, Revit itself would seem to be off the hook. If not, maybe it is uploading the model incorrectly and needs to be reinstalled.
• Downloading. Does the image appear as you posted it on the Autodesk rendering site, below, or not until you download it? Does the download file format make any difference?

Have you used the Audit option when opening the file? Don't click on the file icon on the launch screen, but use File > Open and check the Audit checkbox.

That's all I got. Good luck on a very handsome and well-modeled project.

- Bill

[bill_gilliss]

Alexandra - This really needs to be taken up with a tech support request to Autodesk. Now that I see your screenshot of the Autodesk rendering site, the problem is clearly there. Don't be hesitant about checking the "Urgent - Mission Critical" box when filling out the request. Someone there needs to jump right on this. - Bill

[barthbradley]

---

@Anonymous wrote:

Hello,

were you able to look at my file? 

---

I just opened your file.  I see that you have no saved Renderings in the Project and Rendering Settings for all your 3D Views seem to be the defaults.  I don't know what that is all about.  In order to test, I am going to need your Materials/Library. Go to link below for instructions.   Additionally, it would be helpful to input an actual location for sunlighting/shadowing.  

https://knowledge.autodesk.com/support/revit-products/learn-explore/caas/CloudHelp/cloudhelp/2018/EN...

[Anonymous]

Hi Bill, thank you for your sympathy.

Apparently, since I'm a graduate student and use student software (I work in architecture professionally but this is my thesis project) without a typical professional membership, Autodesk won't troubleshoot my issue.

[Anonymous]

Hi Barth,

As I mentioned, I rendered in cloud for all my renderings. Most 3D views have settings applied unless its a view I haven't rendered, and there are quite a few at this point since rendering in cloud hasn't been working.

I will add location and send you the materials if that helps.

[Anonymous]

Hi Bill,

Thank you for your thoughtful feedback.

-The images I posted from the cloud renderings appear the same in cloud as they do when I download them (they don't become distorted when I'm downloading them- they're already crappy in the cloud).

-I have not considered reinstalling Revit. I will give that a try and report back. 

-The lights could be the issue in general, strange they rendered in 2019 but not 2020. I've considered getting rid of all the lights all together in a duplicated project to see if that helps. 

-I'm not very familiar with the audit function but I will look into that as well.

Lastly, thank you for the kind comment. I appreciate your help.

[bill_gilliss]

Alexandra -

I rendered your model, Revit 2019 version, in the cloud using both my free educational account and my paid professional account, to see if that was somehow the problem. The educational account versions were horrible -- although in a different way than yours. 1000x750 Standard quality (darker), followed by Final quality (lighter).

 

 

The paid account at 1000x750 Final quality now looks likes this:

which at first glance isn't too bad until you look closely: uneven gradations, no working lights, fuzzy edges. I was going to offer to render this project for you using my paid account (as I'd hope someone might do for one of my students in the same situation), but I think you are best off at this point planning to render in Revit at the workstation. Here's what I get that way. Not nearly as good a sense of environmental daylight, but way better than any of the cloud versions, all things considered: lights, reflections.

[bill_gilliss]

Alexandra -

I have tried several further approaches to see if the file is corrupted in a way that can be fixed by a user. Alas, none of these solved your problem, but here's what I did for your future reference or conversations with whatever tech support might become available to you:

1) Audited the model when loading it. Saved it. Closed and restarted Revit, opened file. Cloud rendering problem persists.

2) Ran Manage > Purge Unwanted on the audited project. Kept doing that until there was nothing left to purge. Saved file, restarted Revit, and opened file. Problem persists.

Those two approaches would have preserved your views, sheets, etc. The following ones, which tried to put your architectural elements in a new Revit file, would not have preserved them.

3) In the audited model, in the Site Plan view, made everything except Site elements visible and selectable and unpinned. Copied everything to the clipboard and pasted into a new file, Aligned to Current View, also Site Plan. Ran into several alert messages in the bottom right corner, and clicked on whatever the required course of action was. Like this:

Would select the available course of action, like "Unjoin Elements," until eventually hit an alert whose only option was "Cancel" which made everything disappear.

4) In a new clean architectural project, purged all unused everything so that your families would not be ignored in favor of ones already in the clean file.  Linked the audited and purged model of your project with Insert > Link Revit, Origin to Origin. To make it editable, enabled Select Links, and used Modify > Bind Link, checking Levels and Grids. Waited a while for anything to happen. Hit a few alert messages as above, but eventually ended up with your geometry in a new clean file. Ungrouped the insert and then...

Set up a new camera view -- since yours are gone in this model -- and the results weren't much better than before. See attached renderings done in Standard and Final quality modes. The Final one was super washed-out and had to be darkened a great deal to be legible.

Both renderings look very promising when they start, but just get worse and worse instead of better and better.

So, I have no idea how to fix your cloud-rendering issue. The only thing I can think of is that some material or family is somehow messing things up. Beyond my diagnostic abilities.

- Bill