What are you attempting to achieve? (Keep it simple and clear)
I am attempting to union a few rectangular parts together with some negative unions
What is the issue? (Keep it simple and clear - Include screenshots/videos/GIFs if possible)
When I union, sections of some faces change colour, which means unioning completely breaks colours
What solutions have you tried so far? (Have you searched for solutions through the Roblox Wiki yet?)
I don’t see how I could possibly fix a major bug where unions decide lets change your part colours to cause you frustration!
Please check my reply for the image and more clarification
the front should not be grey, but it is changed to grey when unioned
the front should be the same as the side of the parts, the simple stripes of colour shouldn’t have issues with unions and they’re not decals
to be clear with what is happening, I have a few parts in the formation of a rectangular box, I cut some negative unions into it to shape them, and then it decides to change the front face to grey, for no reason. The type of grey its changed into isn’t even a colour present in the parts
Recently I have also gotten issues where after a few minutes, trying to de-union a part creates an error saying that something went wrong error code -1
It seems like any negative part, when it cuts into another part, turns that cut section grey. This should not be occuring and this is extremely frustrating. I don’t often get motivation to work in studio but the bugs just destroy my motivation.
TL:DR negative parts create grey on the cut section of part(s)
CSG V3 is forced on you without your consent or knowldge. Its a beta feature, and thankfully can be disabled. Go into studio and go to file > beta features > scroll down to CSG V3 > uncheck the box, then all your union issues will be resolved!
…yes its necessary? I’m not gonna go pre-CSG and have 50 thousand parts just to have a curve
I have negative parts to cut into the parts to not have to use like 100 more parts just to make a curve into some parts, unions were made exactly for this.
I’m not unioning the parts on their own, there are negative parts involved here
there is no part intensive curve. Reread my message please.
I literally just explained that using a union prevents having to use part intensive models. That is why they were made, to make modelling so much easier for developers and to be less time consuming and less resource heavy
I’m afraid I don’t understand your problem too well. Can you show me the build clearly before unioning it and how many parts there are before unioning?
Unions are more resource intensive than both vanilla parts and meshes. For most resources used, it goes Unions > Brickbuilt > Meshes and that is why a lot of things today are still brickbuilt. Roblox has been optimizing bricks for years, but CSG is quite new and unrefined. Anyhow, good luck with your models
CSG V3 is no longer a beta feature as it is now in full release. You can use CSG V2 by enabling the legacy CSG setting in studio settings > physics, but it is broken so there’s no point to do this.
The only thing I can see is that simple Unions don’t break face colors when I do them in Legacy CSG. New CSG just doesn’t let me do the unions with negative parts properly. It just makes those darker faces, and enabling UsePartColor doesn’t help either.
