Issues with Hatch Pattern display and Metal graphics engine, AutoCAD for MAC LT 2023

[seedstudiolandscapedesign]

When my graphics engine is set to Metal, I am having issues with hatch patterns looking scrambled.  When I switch the graphics engine back to Open GL the hatch patterns display normally.  The pattern show here are custom, but it occurs with some of the out-of-the-box patterns as well.  The version is latest AutoCAD LT 2023.1.1  for Mac.

I would just leave it on Open GL, but the Metal engine is much faster performance-wise.  I also know the graphics engine is new for 2023, so if this is a bug would like to report for development purposes.

Any ideas to check for a resolution for this issue, or should I just report the bug?

[maxim_k]

Hi @seedstudiolandscapedesign ,

What Mac model do you have?

If it has Radeon graphics card, perhaps this is the reason.

Look >>>>>here<<<<<

[seedstudiolandscapedesign]

I have a 2021, 24" iMac with M1 processor and 16GB RAM.

[maxim_k]

Hi @seedstudiolandscapedesign ,

Can you share the drawing you showed on the screenshot?

Although I did not notice such problems with hatches on Mac with M1 chip, I can test it on M1 Mac on Monday.

[seedstudiolandscapedesign]

Hi Maxim,

Sure, see attached file.  I removed my custom hatches from the grid, since they wouldn't display properly anyway.  I think the ones left are the standard AutoCAD options.

[maxim_k]

Hi Steve,

Sorry for delay.

I can confirm that the problem exists on Mac with M1 chip with Metal Graphics Engine enabled.

I can see it on certain zoom levels:

If I zoom in or out - the artifacts disappear:

[seedstudiolandscapedesign]

Thank you for the confirmation.  Is the best course of action to file a bug report?  Or is there something I could try as a workaround?

[maxim_k]

>>>>>>Is the best course of action to file a bug report?

Could be

>>>>>is there something I could try as a workaround?

Only change graphics engine back to Open GL

[juemin.yuan]

Hi seedstudiolandscapedesign,  maxim_k 

You can set sysvar GPUHATCH=0 to disable this feature on metal. And we will fix this issue on next version. Thanks.