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Weird artifacts when showing hidden edges

robduarte
Collaborator
Collaborator

Weird artifacts when showing hidden edges

robduarte
Collaborator
Collaborator

Hi all,

I'm almost certain this is a problem that's just appeared as I view hidden edges all the time and have never encountered this until recently. As you can see in the attachments, I am getting weird artifacts (gradients that appear to be surfaces that don't actually exist, and phantom edges that don't exist) when I turn on Shaded with Hidden Edges OR Wireframe with Hidden Edges. These errors only appear when looking from certain sides: for example it appears like this for the RIGHT and LEFT view but not the FRONT view (or a random orbit view) - even though the model is symmetrical and should appear the same from all sides. It's definitely a bug of some kind and I'd expect someone to say that it's related to a graphics card driver, except that the SAME behavior occurs on a Thinkpad T430 with Windows 10 and an iMac with Sierra. I can file this as a bug but I figured I'd post here first to see if anyone else noticed when it started appearing.

 

Rob Duarte
Associate Professor in Art, Florida State University
Co-Director FSU Facility for Arts Research
http://art.fsu.edu/rob-duarte/

Twitter | YouTube

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masa.minohara
Alumni
Alumni

Hi Rob,

 

Thank you for posting! That does look weird to me. Would you be able to share a public link to the design with me? I'd like to take a closer look and will log the issue with the development as required.

Masanobu Minohara

Product Support Specialist



Fusion 360 Webinars | Tips and Best Practices | Troubleshooting
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robduarte
Collaborator
Collaborator

Anyone should be able to reproduce the problem in about 20 seconds with a new design. Here is a screencast showing the problems: https://youtu.be/9OgB4PTwHUc  and here is the public link to the design in the video: http://a360.co/2dn5en9

Thanks!

Rob Duarte
Associate Professor in Art, Florida State University
Co-Director FSU Facility for Arts Research
http://art.fsu.edu/rob-duarte/

Twitter | YouTube

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PhilProcarioJr
Mentor
Mentor

@robduarte

I don't have the artifacts you do.

Untitled.pngUntitled2.pngUntitled3.png



Phil Procario Jr.
Owner, Laser & CNC Creations

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PhilProcarioJr
Mentor
Mentor

@robduarte

I even turned on all effects and made it a little more complicated to check. What video cards are you seeing this with?

Untitled.png



Phil Procario Jr.
Owner, Laser & CNC Creations

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robduarte
Collaborator
Collaborator

That's interesting - I assumed that it'd be common to everyone since I'm seeing the same thing on two very different systems... one is a Thinkpad T430 with on-board Intel graphics and the other is an iMac with NVidia GT750M. Maybe the thing they have in common is that they both have low-end graphics cards and that Fusion 360 is rendering accordingly. Maybe you're not seeing it because you have a better graphics card and Fusion 360 isn't operating with all the limitations shown in the attachment below...

Rob Duarte
Associate Professor in Art, Florida State University
Co-Director FSU Facility for Arts Research
http://art.fsu.edu/rob-duarte/

Twitter | YouTube

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PhilProcarioJr
Mentor
Mentor

@robduarte

That's possible although I have a laptop with low end gfx and it doesn't have it either.

What happens if you turn off AO and ground shadow? Does it still show the artifacts?



Phil Procario Jr.
Owner, Laser & CNC Creations

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robduarte
Collaborator
Collaborator

I just turned off every effect and it still looks the same.

Rob Duarte
Associate Professor in Art, Florida State University
Co-Director FSU Facility for Arts Research
http://art.fsu.edu/rob-duarte/

Twitter | YouTube

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masa.minohara
Alumni
Alumni

Phil  - Thank you for checking this!

 

Rob - I tested in Mac and was able to reproduce it. (I don't see this in my Windows environment)  I am sorry for the inconvenience but I am not sure how to work this around at the moment. I have logged this issue with the development (FUS-27921) and they will review it. 

 

Thank you for reporting the issue!

 

Masanobu Minohara

Product Support Specialist



Fusion 360 Webinars | Tips and Best Practices | Troubleshooting
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keqingsong
Community Manager
Community Manager

@robduarte Good news, we have a fix for this in the Jan update! 


Keqing Song
Autodesk Fusion Community Manager
Portland, Oregon, USA

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