https://gyazo.com/34b3c2acef3f4b06d9fdb2e785b235db
When I union together a negated piece and a wall to create an entrance. For some reason the negated piece even though gone becomes an invisible collidable barrier. Any ideas why and how to fix?
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Unions are known to have wonky collision physics. I saw the video and it seems u just want to create a rectangular enterance.i would reccomend u to do it with parts if possible. You can also use meshes for this case if you want.
If you want it be a union only then try these
(They work MOST of the time*):
- Duplicate the Negated part and commit the Union Operation on the same part twice.
- Change the scale of part in a direction that doesnt affect the shape (e.g : in ur case you just want a wall to be cut out, u will only have to worry for 2 axises for the shape , the 3rd axis ( can be any depending on your build ) can be adjusted to ur will)
- Open Studio Settings, turn on Decomposition Geometry, See your unions geometry and negate any excess of it.
-Change Unions Collision Fidelity to Precise.
Most likely 1st and 3rd will work out for u.
I hope this works out for u.
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Make the union unable to collide then shape an invisible door that can collide
It’s just good old Roblox union collisions registration. When I was a newb to developing I tried building a house thing and I used negate for the door and It wouldn’t work. I’m Surprised Roblox hasn’t fixed it. You could just use multiple parts to create a door like that then union it.
Try the Search button up top. This question has been answered many times in previous posts, I searched an old post of mine from 2018.
Is it possible to fix this ~ Unions - #3 by Kiansjet
Since then they’ve improved Unions, and made the extra CollisionFidelity called PreciseConvexDecomposition. They’ve seemed to document the addition of another one called DynamicConvexDecomposition as well.