Currently there is no built-in lerp function for the native vector type. Instead we have to write out a function to handle this ourselves.

local function vectorLerp(a: vector, b: vector, alpha: number)
	return a + (b - a) * alpha
end

local start = vector.create(-3, 1, 4)
local finish = vector.create(1, 5, 9)

local intermediate = vectorLerp(start, finish, 0.5)

This works well enough I suppose, but it can easily become repetitive having to write this in every file that requires it.

I propose that either vector.lerp be added to the vector library, or math.lerp natively support vector types, as currently it can only support numbers.