How can I completely disable all collisions for all parts of a character's body?

Help and Feedback Scripting Support
#1

  1. What do you want to achieve? Keep it simple and clear!
    completely disable all collisions for all parts of a character’s body

  2. What is the issue? Include screenshots / videos if possible!
    its a question

  3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?
    Searched a while online, cancollide is forced on renderstep by humanoids, I heard somewhere a long time ago that a certain humanoid state might do this, but un sure

#2

Detecting Collisions | Roblox Creator Documentation.

#3

That’s not what I’m looking for, I’m looking to completely disable all collisions for all body parts on any part, not just other players

#4

You can disable the default collision group using the collision group system.

Edit: Just do this as it’s a better solution than the renderstep.

local PhysicsService = game:GetService("PhysicsService")
local Players = game:GetService("Players")
 
local playerCollisionGroupName = "Players"
PhysicsService:CreateCollisionGroup(playerCollisionGroupName)
PhysicsService:CollisionGroupSetCollidable(playerCollisionGroupName, playerCollisionGroupName, false)
--The key is here to make it not collide with the default enviroment
PhysicsService:CollisionGroupSetCollidable("Default", playerCollisionGroupName, false)

 
local previousCollisionGroups = {}
 
local function setCollisionGroup(object)
  if object:IsA("BasePart") then
    previousCollisionGroups[object] = object.CollisionGroupId
    PhysicsService:SetPartCollisionGroup(object, playerCollisionGroupName)
  end
end
 
local function setCollisionGroupRecursive(object)
  setCollisionGroup(object)
 
  for _, child in ipairs(object:GetChildren()) do
    setCollisionGroupRecursive(child)
  end
end
 
local function resetCollisionGroup(object)
  local previousCollisionGroupId = previousCollisionGroups[object]
  if not previousCollisionGroupId then return end 
 
  local previousCollisionGroupName = PhysicsService:GetCollisionGroupName(previousCollisionGroupId)
  if not previousCollisionGroupName then return end
 
  PhysicsService:SetPartCollisionGroup(object, previousCollisionGroupName)
  previousCollisionGroups[object] = nil
end
 
local function onCharacterAdded(character)
  setCollisionGroupRecursive(character)
 
  character.DescendantAdded:Connect(setCollisionGroup)
  character.DescendantRemoving:Connect(resetCollisionGroup)
end
 
local function onPlayerAdded(player)
  player.CharacterAdded:Connect(onCharacterAdded)
end
 
Players.PlayerAdded:Connect(onPlayerAdded)
3 Likes