The time has come. We’ll switch the new system on by default tomorrow morning (thursday, PST). If everything goes well, we’ll keep it on, but if there are too many problems to bear, we’ll turn it back off, fix it and then repeat…
Work is still ongoing on a number of cosmetic issues, but since the geometry generated by the new system won’t ever be exactly the same as that of the old one, no amount of work can make the switch completely seamless.
We apologize in advance for any inconvenience this will cause, but we think the upside of generally reliable operation already outweighs the backwards compatibility issues that remain.
The new system can still be explicitly disabled in Studio for a transition period. To use the old system after the new one has been made default, you need to go to “Settings” under the FILE menu, select the “Physics” tab and scroll all the way down to find the “DisableCSGv2” setting. If the box is checked, Studio will use the old CSG system. There is no need to restart Studio for this setting to take effect, even if it tells you otherwise.
Please report problems below.