topic Re: webgl Context Lost in generative design preview in Fusion Support Forum

webgl Context Lost in generative design preview

zachary_cohen — Wed, 13 Mar 2024 14:25:56 GMT

Hello,

I'm running Fusion on a brand new computer with a high end graphics card and starting with this machine, whenever I click to preview a generative design file I get an error:

WebGL context lost

Unable to recover from software mode. Please restart your browser and reload the viewer

Is there a solution to this? Searching seems to show that this is a rare but reoccurring issue.

Re: webgl Context Lost in generative design preview

henderh — Wed, 13 Mar 2024 20:07:00 GMT

Hi @zachary_cohen,

Although it isn't the exact message you're seeing, have you tried the steps in the support articles?

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Results-of-Simulation-and-Generative-Design-studies-do-not-display-in-Fusion-360.html

https://www.autodesk.com/support/technical/article/caas/sfdcarticles/sfdcarticles/Error-We-cannot-show-this-item-becasue-WebGL-is-disabled-on-this-device.html

Hope this helps,

Re: webgl Context Lost in generative design preview

zachary_cohen — Thu, 14 Mar 2024 10:47:31 GMT

Just tried those suggestions and unfortunately they didn't work.

Thank you for the suggestions though.

Re: webgl Context Lost in generative design preview

henderh — Thu, 14 Mar 2024 22:56:54 GMT

Hi @zachary_cohen,

Could you provide the graphics diagnostics? (Help pull-down > Support and Diagnostics > Graphics Diagnostic)

Also, the diagnostic log files when you see the WebGL error? (Help pull-down > Support and Diagnostics > Diagnostic Log Files)

As a temporary workaround, you should be able to view the outcomes using Fusion in a web browser - https://fusion.online.autodesk.com (FAQ)

Best regards,

Re: webgl Context Lost in generative design preview

zachary_cohen — Mon, 18 Mar 2024 11:06:10 GMT

Hello @henderh,

Below is my graphics diagnostic, and attached is the log.

[GPU Information]
GPU Device: AMD Radeon RX 7900 XTX
GPU RAM: 24576 MB
GPU Driver API: DirectX 11.0
GPU Driver Version: 31.0.24019.1006
GPU Driver Date: 02/23/2024

[Graphics Effects Settings]
Anti Aliasing: On
Ambient Occlusion: On
Object Shadow: Off
Ground Shadow: On
Ground Reflection: Off
Selection Display Style: Normal
Transparency Effect: Better Performance

[Limit effects to optimize performance]
Off

Re: webgl Context Lost in generative design preview

henderh — Mon, 18 Mar 2024 19:03:26 GMT

Thank you for providing the diagnostics @zachary_cohen.

An issue is logged as Id-152083, for development to investigate further.

Re: webgl Context Lost in generative design preview

kczerwienka — Thu, 21 Mar 2024 22:01:20 GMT

Same story for me. However, it worked properly a couple of months ago on the same device, but broke some time ago.

[GPU Information]
GPU Device: AMD RadeonT 780M
GPU RAM: 4096 MB
GPU Driver API: DirectX 11.0
GPU Driver Version: 31.0.24027.1012
GPU Driver Date: 03/20/2024

[Graphics Effects Settings]
Anti Aliasing: On
Ambient Occlusion: On
Object Shadow: Off
Ground Shadow: On
Ground Reflection: Off
Selection Display Style: Normal
Transparency Effect: Better Performance

[Limit effects to optimize performance]
Off

Re: webgl Context Lost in generative design preview

ImCADing_CoryS — Thu, 21 Mar 2024 22:54:22 GMT

Hello, I thought that I would chime in with my data as I am having this issue as well.

[GPU Information]
GPU Device: AMD Radeon RX 7800 XT
GPU RAM: 16256 MB
GPU Driver API: DirectX 11.0
GPU Driver Version: 31.0.24027.1012
GPU Driver Date: 03/20/2024

[Graphics Effects Settings]
Anti Aliasing: Off
Ambient Occlusion: Off
Object Shadow: Off
Ground Shadow: Off
Ground Reflection: Off
Selection Display Style: Simple
Transparency Effect: Better Performance

[Limit effects to optimize performance]
On

Re: webgl Context Lost in generative design preview

henderh — Fri, 22 Mar 2024 00:03:59 GMT

Thanks for the reports @kczerwienka, and @ImCADing_CoryS.

I've added the additional information to the issue. Knowing this worked in the recent past (using the same hardware) could help development's investigation.

Re: webgl Context Lost in generative design preview

lance.carocci — Thu, 14 Aug 2025 20:19:48 GMT

Hi folks, has this improved after our July 2025 release?