How to create a crater?

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#1

Im working on a fighting game with abilities and I was wondering how to make like a crater around the player with the same color and material as the ground, do I make each part seperate for the crater?

#2

The way I make them is something around this:

-- for reference, partCount is the amount of parts in the crater
-- craterCFrame is the CFrame of the center
-- and offset is the distance from the center
for index = 1, partCount do
	-- use pi to get the radians in a circle, then multiply by the
	-- fraction of (index / partCount) to get the direction we want to move the
	-- part in
	local rotation = craterCFrame * CFrame.Angles(0, math.pi * 2 * (index / partCount), 0)
	local rockCFrame = craterCFrame + rotation.LookVector * offset
	-- create the part, make sure to randomize the rotation of "rockCFrame" too!
end

image
image713×338 38.3 KB

The end result came out as something like this

local partCount = 8
local offset = 4.5
local craterCFrame = CFrame.new(0, 8, 0)

local cast = workspace:Raycast(craterCFrame.Position + craterCFrame.UpVector, craterCFrame.UpVector * -25)
if not cast then
	return
end

craterCFrame = CFrame.new(cast.Position) * craterCFrame.Rotation

local rng = Random.new()
for index = 1, partCount do
	local rotation = craterCFrame * CFrame.Angles(0, math.pi * 2 * (index / partCount), 0)
	local rockCFrame = (craterCFrame + rotation.LookVector * offset) * CFrame.Angles(
		rng:NextNumber(-math.pi, math.pi),
		rng:NextNumber(-math.pi, math.pi),
		rng:NextNumber(-math.pi, math.pi)
	)
	local rock = Instance.new("Part")
	rock.Size = Vector3.one * 3
	rock.CFrame = rockCFrame
	rock.Material = cast.Instance.Material
	rock.Color = cast.Instance.Color
	rock.Parent = workspace
end

^^ Code used to recreate the result in the image