Introducing OverlapParams - New Spatial Query API

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#131

@Razorter @EtiTheSpirit @GMaxZet

None of this API includes terrain right now, which matches the old Region3 API behavior. (However, Part:GetTouchingParts will include terrain)

We could add this though, probably via an OverlapParams.IncludeTerrain parameter?

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How laggy is while true do
Is it possible to check a Vector 3 coordinate in studio to see if there is a part in the position?
#132

I’m sure I had Terrain instance there. Must been a glitch.

It would be cool to have the ability to query the terrain using this API. Thank you, you rock!

1 Like
#133

Terrain is technically a part so yes please. If it’s also possible, can you add IgnoreWater so it’s consistent with RaycastParams?

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#134

I doesn’t say anywhere on the developer hub that the Region3 functions are deprecated.

#135

Because they haven’t been marked as that yet, but trust me, if a Roblox Staff Member says that they’re deprecated then they’re deprecated.

#136

I wonder if the first parameter (PartInstance part) of the third new function introduced (WorldRoot:GetPartsInPart) actually includes the MeshPart. If no, then this third new function is pointless since we can basically do it using the first new function :sweat_smile:

#137

I’m sure it will work, if not then imagine the hitboxes people have to create with just squares and spheres. Ouch.

#138

That means the third function is custom and free for all, sounds nice! :laughing: :smiling_face_with_three_hearts: :melon:

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#139

If it doesn’t, im sure Zone+ is updated and/or updating their module with the latest query API for all to use :+1:

#141

I can’t get it to work with MeshPart bones!
Is it because OverlapParams checks against part.Position and for bones should check for bone.WorldPosition (or bone. TransformedWorldCFrame.Position) ?

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#142

I think this method needs a boolean version. Bool = IsPartInPart(PartA,PartB) If I want to ask if a certain part is simply overlapping another part. Such a function may be less intensive on game performance and a lot simpler to use.

#143

That’s what I wanna know. Though, I did run GetPartBoundsInRadius in a fast loop and its an extreme resource hog (talking like >50% CPU usage). I find that looping through the parts and checking their distance with the good old (pos1 - pos2).Magnitude was less resource intensive, but I do understand why as it’s trying to factor in the bounds of a part rather than just a simple distance check from their positions.

#144

Update on this: I did a test to see which is faster (Region3 vs BoundsInRadius).
These were my results (each was ran 10 times):

Region3

All times:
0.1491571000078693
0.13990179996471852
0.14120559999719262
0.13626439997460693
0.1535322000272572
0.1385526999947615
0.14146419998724014
0.16613239998696372
0.13969529996393248
0.1388802999863401

Average:
0.14447859998908824

BoundsInRadius

All times:
0.3513048999593593
0.3413050000090152
0.3363081999705173
0.3346049999818206
0.3367011999944225
0.3251165000256151
0.33610730001237243
0.32732949999626726
0.33658229996217415
0.33615290001034737

Average:
0.33615127999219113

As you can see, Region3 is still largely faster

These times have been cleared up by @kleptonaut

#145

So your saying, that Region3, a recently deprecated thing is still faster than the new flashy OverlapParams?? Roblox can’t be that high to deprecate a system thats faster than the new one.

#146

I mean, Region3 just takes the part positions in a square. PartBoundsInRadius takes into account the bounds of the part though. Of which is more expensive to calculate instead of just its position.

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#147

I’ve never used BoundsInRadius for object detection yet, but id imagine it would be slower because its calculating a circle if I am correct. I use GetPartsInPart for hitbox collision checking

#148

Calculating in a circle isn’t all that expensive. It’s just a simple distance check by subtracting the 2 positions and accessing the Magnitude property.

Like this:

local distance = (pos1 - pos2).Magnitude

Or if you want to be real technical:

local distance = math.sqrt((x1-x2)^2+(y1-y2)^2+(z1-z2)^2)

The real expensive part is it has to factor in part bounds, of which it has to get every corner and point of a parts bounds and check if it is overlapping in the radius.

#149

ah thats true, I was calculating that with my placement system detection, however when i was using it theres no issues that are really worth looking into because its all ran on the client and verified on the server

#151

I think a function for Vector3s should be added. The function will check if the vector3 is inside the region. I think this will be helpful for people who dont want to use parts.

2 Likes
#152

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