Questions about CFrames - Hover Tank

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#1

I have a question about CFrames.

Im making a hover tank. The tank has pitch and roll rotations

I would like goal.LookVector to be pitch.LookVector, and goal.RightVector to be roll.RightVector

How could I manipulate the CFrame to achieve this?

At the moment I am doing this:

return CFrame.fromMatrix(
  mainPart.Position, 
  Vector3.new(), 
  Util.getAvgVector({pitch.YVector, roll.YVector}), -- roll and pitch based on inputs
  CFrame.lookAt(mainPart.Position, workspace.Camera.CFrame.Position).ZVector -- look in the direction of the camera
)

But it doesnt have the correct result

1 Like
#2

I should note, if the code was correct, the tank would be parallel with the wedge as it goes over it

1 Like
#3

I solved the problem.

local function getOrientationCFrame(positions)
	local frontAvg = Util.getAvgVector({positions.Front1, positions.Front2})
	local backAvg = Util.getAvgVector({positions.Back1, positions.Back2})

	local leftAvg = Util.getAvgVector({positions.Front1, positions.Back1})
	local rightAvg = Util.getAvgVector({positions.Front2, positions.Back2})

	local pitch = CFrame.lookAt(backAvg, frontAvg)
	local roll = CFrame.lookAt(leftAvg, rightAvg)
	
	local crossProduct = pitch.LookVector:Cross(roll.LookVector)
	
	local cf = CFrame.new() * CFrame.fromEulerAnglesXYZ(-crossProduct.Z, 0, crossProduct.X)
		
	return CFrame.fromMatrix(
		mainPart.Position, 
		cf.XVector, 
		cf.YVector, 
		CFrame.lookAt(mainPart.Position, workspace.Camera.CFrame.Position).ZVector
	) 
end```