Hi Lasse,
Thank you for the confirmation! I'm glad that the issue is solved with 2D Hardware Acceleration turned off.
Please follow the link here to read more about this feature:
https://helpcenter.graphisoft.com/user-guide/89366/ (under
2D Hardware Acceleration Level
)
The difference between Software rendering and Hardware acceleration in Archicad is that:
- Software rendering: CPU will be used to generate the screen elements.
- Hardware acceleration: GPU will do the job
In short: with this feature, Archicad will use the GPU to help with drawing the 2D information. If it is set to Full, the GPU will be used for creating 2D information in all monitor. The difference in performance will depend on various factors. We usually recommend turning off 2D Hardware Acceleration, if AC behaves unexpectedly on macOS.
In order to have the GPU function properly, it needs to have the latest driver. Unfortunately, on macOS, Apple controls how the driver is delivered, therefore macOS users won't be able to have the latest bug fixes and performance tweaks for their GPU.
I suspect that in your template file, there might be some elements that mess with the GPU function, but I cannot be sure. Unfortunately, it would be very difficult to investigate further, especially during this work-from-home period. As it rarely happens, we will need your template file, along with setting up the exact configuration (monitor models, iMac model and OS version).
If the performance is acceptable with 2D Hardware Acceleration turning off, I suggest leaving it like that. But if you see that without this feature, Archicad won't be able to run properly, please forward the information (template file, system info, etc...) to our first tier support (I was talking to him as I'm typing this
![](/legacyfs/online/emojis/icon_smile.gif)
)
Thank you very much for your understanding! If you have any further question, feel free to ask me again!
Best regards,
Minh
P/s: to add some more information regarding AC version, I can only say each Archicad version uses the hardware resources differently, therefore the issue may happen on newer Archicad versions
Minh Nguyen
Technical Support Engineer
GRAPHISOFT