Pervent overlapping in x and z in a placement system

[sussy_bacoo]

so i have a placement system, and it is using mouse.hit.position, the problem is, when i go onto walls, it has nothing to stop it half clipping through the wall,

for the ceiling it is even worse, because i added the extra half of the object to the object so the whole thing stays above ground.

code:

circle.Position = mouse.Hit.Position + Vector3.new(0,circle.Size.Y/2,0)

any idea how i can pervent this?

[imdaros]

First recommendation to raycast to the mouse position, like with bullet holes, you then change the CFrame the part based on the normal of the raycast, If it’s still clipping, you might wanna change from where the part pivots, so that you can get that difference to add to the position.

[sussy_bacoo]

is it possible to use mouse.target surface? i heard that could maybe work

[Prototrode (Vernumerator)]

I’m gonna quote myself here:

Trouble with finding orientation of surfaces

Get the normal surface of the part you’re looking at and orient the note to face that vector. You can do this with Mouse.TargetSurface, but it won’t work on complex shapes/meshes, so you should use raycasts instead. This particular problem has been asked numerous times here on the forum, here’s an older thread related to your issue:

How can I make the Raycast give me the top surface of an object

Hello! I’ve been trying for some time to get the raycast to make a Part in front of the RayCastResult.Position but I have a problem because first I try to change the position of the object with vector3 so that it does not collide with the Part but I get stuck if the other part has a different size becasuse it collides. [image] How can i get the front of the RayCast.Position so that the part depending on the size it has, always looks good and does not collide. Any help is appreciated

[sussy_bacoo]

hmm, the mesh i am doing is not complex at all, so i think this might work, i am not great at the math though, heres what i have so far:

if surface.Name == "Top" then
		pos = circle.Position + Vector3.new(circle.Size.Y)
--too lazy to do the rest but you get the idea
	elseif surface.Name == "Bottom" then
		pos = Vector3.new(0,-4,0)
	elseif surface.Name == "Front" then
		pos = Vector3.new(0,0,-4)
	elseif surface.Name == "Back" then
		pos = Vector3.new(0,0,4)
	elseif surface.Name == "Left" then
		pos = Vector3.new(-4,0,0)
	elseif surface.Name == "Right" then
		pos = Vector3.new(4,0,0)
	end

do you think this could work?

[Prototrode (Vernumerator)]

If anything is rotated (not aligned to any particular axis like in minecraft) then I’m afraid it won’t.

The surface is in objectspace and it needs to be transformed into worldspace.
Their offsets are in objectspace and they also need to be transformed into worldspace.

If you’re going to go through the hassle of fixing that, then you should just use raycasts to begin with. It’s much easier to do these kind of things with raycasts; don’t let it intimidate you.