The Global ARCHICAD Community

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Speed/Display issues/unfamiliar error messages, crashes/hangs or any other problems regarding ARCHICAD (Example: I get an error message when the 3D Window is generated, please help!).
Note: If your problem seems to be an ARCHICAD error please always report it to your local reseller!

Moderators: Karl Ottenstein, LaszloNagy, ejrolon, Barry Kelly, gkmethy


The OpenGL Engine was upgraded in ARCHICAD 22 from the previous 2.0 version to 3.2 (which is more recent and efficient). As a result some older hardwares (GPUs to be exact) might not be able to work properly if they don't support this standard, or their driver is out of date.

As I can see you have a 21.5" iMac, but still with a low-resolution display, which could mean that it is a pretty old computer.

Could you check if you get a warning message (a yellow triangle with an exclamation mark in it) in the 'Work Environment > Advanced Redraw Options' window?

Does turning the 3D Anti-Aliasing off (in the same dialog) help?

Could you save a system report file (.spx) and send it to me in a private message so that I can see what hardware you have exactly?

Thanks in Advance,
I have the same problem. It's specific to OpenGL with Sun Shadows - changing any other settings has no effect.
I've updated to the latest Nvidia driver, but it didn't help.
An exclamation mark in the Advanced Redraw options relates to 2D, not 3D issues.
I'd appreciate any workaround tips, before I'm forced to 'regress' my projects to Archicad 21
AC22 OpenGL sun shadows setting causes whiteout.jpg
In Archicad 22 OpenGL sun shadows don't work