How I can get angle between vector and mesh's face? (Or directional vector of mesh's face)

[dthecoolest]

@GamEditoPro

droplet will slide on mesh part

So do you need a downward slope facing direction?

Perhaps this might give you an idea of how to obtain it using cross product, similar problem to sliding down a slope:

Content removed

If you want to get the CFrame pointing downards of a slope you can use cross product. However keep in mind this only works if the slope is uneven and not perfectly flat or else the cross product will fail. local char = script.Parent local HRP = char:WaitForChild("HumanoidRootPart") local part =Instance.new("Part") part.Anchored = true part.Size = Vector3.new(2,1,5) part.CanCollide = false part.Parent = workspace part.FrontSurface = Enum.SurfaceType.Motor local downVector = -Vect…