Can't find surface inputs

[Qapandt (Arch)]

So, i’m currently learning about raycasting in roblox, and i’m following along with a tutorial and in that tutorial i need to implement a hinge on a surface of the part using the SurfaceInputs attribute but i can not find this attribute anywhere in the properties of the part.What do i do?

[Dev_Peashie]

In your Raycast Result you have the Surface Normals Coordinates to use, in order to place something on those coordinates correctly oriented:

if raycastResult then
    -- Raycast hit an object
    local hitPosition = raycastResult.Position -- point of intersection
    local surfaceNormal = raycastResult.Normal -- surface normal at hit point
else
    -- Raycast did not hit anything
end

Theres many topics in forum explaining how to use it, idk, check this one too:

Explanation of Surface Normal?

The surface normal is a vector, which can be imagined as a description of an arrow in 3D space. In the example given by @jody7777, the arrow is a representation of the vector that is perpendicular (aka normal aka at a 90 degree angle to) the surface at that point. [image] A Vector3 is described as such because it is a vector with 3 components, normally (x, y, z). Now let’s say that the length of the arrow in the above image is 5 units. It is shown to be pointing straight up, in the positive-…

[Qapandt (Arch)]

So look, I’m currently watching a youtuber named TheDevKing about Raycasting. And I’ve got to a point where he implements a hinge on the top surface of a part using this property in the property tab:

And the result looks like this:

But when I’ve tried to do the same, i couldn’t see the property anywhere.

And I want to know if roblox deleted this property and how I could fix it, to get the to the same result as in the video.

[Dev_Peashie]

Its kinda deprecated I think, but you can access it, change it, so it gets available in studio to edit in properties explorer:

Just run this line in command bar: workspace.Part.TopSurface = Enum.SurfaceType.Hinge
Just reference the part you want.