Batch updating viewports sometimes results in incomplete renders

[jmcewen]

I am not sure if this is the right place to post this one.  I could have made a case for Troubleshooting or General Discussion.  But since it happens while the Utah Teapot is out, I thought it made sense to come here.

 

I have noticed a few times recently when I update all my viewports prior to publishing that sometimes they don't all truly update.  They highlight as though they have updated with the orange outline instead of the candy stripe outline.  The navigation palette says they are updated.  The OIP looks like it is updated.  for most of my work almost all of my viewports are shaded with outlines.  I occasionally will have some dashed hidden line overlays, or i might take a different approach on a section view, but for the most part I keep it simple.  

 

However if I look at the viewport itself there will be something wrong.  For example,

• It may look entirely blank other than my annotations.
• The shaded render will be colored as it should be but without the outlines that i always have turned on. 
• Occasionally just a sliver of the viewport will be rendered and the rest blank.  

 

It is not a matter of settings on the viewports.  if i go back and trigger an update on each individually they all come out fine.  it is so much easier to select all viewports from the Navigation pane and update than it is to do each manually, but now I am needing to go back and individually check each of 60-150 viewports in a file, and sometimes the failures are not immediately obvious, i.e. when the objects are shaded but without outlines. 

 

I am mainly seeing it on my laptop in the last few weeks, but i fell like i can remember it showing up on my desk top previously as well.

 

Unfortunately I don't have screenshots of this.  I only perform this action at the end of a project when time is short, and I am focused on completing the task rather than troubleshooting for the sake of future-me.

 

Any thoughts on what might be causing this?

[BartH]

I've seen this before, too. 

I have mostly seen it when using Redshift rendered viewports.

 

My hunch is that there are problems with the VRAM and trying to do too much at once. Maybe too much multitasking within batch updating viewports??

I see your desktop has PLENTY of VRAM. Your laptop is the same as my desktop. 

 

Sometimes, on the blacked-out viewport, there is even a tiny message in red type that says there is some kind of Out of Memory Error.

I think changing the sheet layer DPI  fixes the problem. 

 

I have not seen this on Hidden line viewports. so I may be off base. 

[jmcewen]

On 5/4/2025 at 7:11 PM, BartH said:

I've seen this before, too. 

I have mostly seen it when using Redshift rendered viewports.

 

My hunch is that there are problems with the VRAM and trying to do too much at once. Maybe too much multitasking within batch updating viewports??

I see your desktop has PLENTY of VRAM. Your laptop is the same as my desktop. 

 

Sometimes, on the blacked-out viewport, there is even a tiny message in red type that says there is some kind of Out of Memory Error.

I think changing the sheet layer DPI  fixes the problem. 

 

I have not seen this on Hidden line viewports. so I may be off base. 

Thank you.  That gives me a few options to experiment with, at least.