Can you change the orientation of the selection box on a union

[Dorthsky (deprecatedbrain)]

I’m unioning the leaves and the logs on a basic pine tree and for some reason, the selection box is way bigger than the actual tree. I’m not sure how to fix this. Any help is appreciated.

[Crazedbrick1 (CrazedBuilder)]

Press Ctrl + L to fix that.

Or change the PrimaryPart.

[Dorthsky (deprecatedbrain)]

Unfortunately, none of those worked. Pressing Ctrl L just changes how I move it with the arrows. Also changing the primary part doesn’t help.

[ImTheBuildGuy]

It extends out to the farthest part in the model. Look at the parts in the model, see if a far invisible part is causing this.

[Dorthsky (deprecatedbrain)]

There aren’t any. It’s the union of the leaves that are messing it up.

[grif_0 (not_grif)]

You can always adjust the parts Pivot point in the pivot editor to adjust how you can locally move and rotate it, which should also adjust the selection box. Selection boxes are always wierd with unions, so don’t expect them to be perfect. They have no harm inside the game.

[THESAIYANPRO2006 (Unknown_Creature)]

Here is the solution to your problem

Selection boxes of unions and their orientation

For a really long time since csg became a feature on ROBLOX I have always had a hard time trying to get a specific selection or bounding box shape out of a union. I know that the selection box is based on the rotation and angle of one part, but it is never consistent between unions that it’s just so frustrating to get the desired box. To give a little insight and to provide an example? this is a model of a vtol propeller that I made, it is five unions making up the blades and one union making u…

[AlexTheEggRat]

ik I’m a bit late to this, but here is a solution that works for me:

Union a NegatePart away from the union itself, like this. If it doesn’t work, try it again, until it works.