EditableMesh doesn't work after the update

Help and Feedback Scripting Support
,
#1

I have big problems with EditableMesh after the update, this piece of code worked before the update, and turned my meshpart into a plane, after the update it just stopped working, can someone explain what the problem is, preferably in more detail, because I don’t understand this topic at all.

local AssetService = game:GetService("AssetService")

local Water = script.Parent

local EditableMesh = AssetService:CreateEditableMesh()

local width = 100
local height = 100

local vertices = {}

for y = 1, height do

	local raw = {}

	for x = 1, width do

		local vertexPosition = Vector3.new(x - 1, 0, y - 1)
		local vertexId = EditableMesh:AddVertex(vertexPosition)

		raw[x] = vertexId
	end
	vertices[y] = raw
end
print("1 fors")
for y = 1, height - 1 do

	for x = 1, width - 1 do

		local vertex1 = vertices[y][x]
		local vertex2 = vertices[y + 1][x]
		local vertex3 = vertices[y][x + 1]
		local vertex4 = vertices[y + 1][x + 1]

		local triagle1 = EditableMesh:AddTriangle(vertex1, vertex2, vertex3)
		local triagle2 = EditableMesh:AddTriangle(vertex3, vertex4, vertex2)

	end
end
print("2 fors")

2nd attempt:

local AssetService = game:GetService("AssetService")
local myMeshPart = workspace:FindFirstChildWhichIsA("MeshPart")

local myEditableMesh

if myMeshPart then
    myEditableMesh = AssetService:CreateEditableMeshAsync(myMeshPart.MeshContent)
    if myEditableMesh then
        print("EditableMesh created.")
    else
        warn("Error.")
    end
else
    warn("MeshPart doesnt found.")
end

local function computeExtents(em: EditableMesh)
    local verts = em:GetVertices()
    if #verts == 0 then
        return Vector3.zero
    end
    local inf = math.huge
    local min = Vector3.new(inf, inf, inf)
    local max = Vector3.new(-inf, -inf, -inf)
    for _, id in verts do
        local v = em:GetPosition(id)
        min = min:Min(v)
        max = max:Max(v)
    end
    return max - min
end


local width = 100
local height = 100

local vertices = {}

for y = 1, height do
    local row = {}
    for x = 1, width do
        local vertexPosition = Vector3.new(x - 1, 0, y - 1)
        -- Используем myEditableMesh для добавления вершины
        local vertexId = myEditableMesh:AddVertex(vertexPosition)
        row[x] = vertexId
    end
    vertices[y] = row
end
print("1 fors")

for y = 1, height - 1 do
    for x = 1, width - 1 do
        local vertex1 = vertices[y][x]
        local vertex2 = vertices[y + 1][x]
        local vertex3 = vertices[y][x + 1]
        local vertex4 = vertices[y + 1][x + 1]

        myEditableMesh:AddTriangle(vertex1, vertex2, vertex3)
        myEditableMesh:AddTriangle(vertex3, vertex4, vertex2)
    end
end
print("2 fors")
#2

ive tried the same thing and for some reason it doesnt work either

#3

I believe that you have to run :CreateMeshAsync() on the editable mesh that was created, then run ApplyMesh on your mesh to actually change it. Check the post here.

1 Like
#4

Should I do all these actions on MeshPart or what? Instance.new(“EditableMesh”) gives "Unable to create an Instance of type “EditableMesh” error. I don’t quite understand, could you give me an algorithm of my actions please?

#5

You can no longer create EditableMeshes. Check the link I sent there is sample code you can copy.

#6

Okay I managed to add EditableMesh but now I have an error with adding vertex:
local vertexId = myEditableMesh:AddVertex(vertexPosition)
Such lines make the following error appear: EditableMesh is fixed-size, adding or removing elements is not allowed in-experience.
Maybe I should enable some setting other than EditableMesh, or the problem is in the code?

#7

When creating the EditableMesh with AssetService:CreateEditableMesh(), add a dictionary to the parameters.
The dictionary should look like this:
{FixedSize = false}
By default the FixedSize value is enabled, but you can use the dictionary to enable it.
The FixedSize value, when true, makes it so that you can only change the position of vertices, not add any or delete any