Introducing, ThumbnailCreator, my first ever plugin! With this plugin, you can easily create perfect thumbnails for model! You can select which angle to make thumbnail from, you can also make decals a thumbnail like this Bubbient model I made earlier. Since it’s my first ever plugin I am publishing, it might have a lots of bug. Please report bugs by messaging me on DevForum, would really help.
You might think that some plugins like this already exist. Well, I have tried the plugins and found out that it only adds a GUI to crop - and nothing. So I decided to make a fully functional thumbnail maker plugin.
Special Features:
- Easy to use.
- Changes FieldOfView for perfect thumbnails.
- Does everything (almost) automatically.
- UI Suitable for every device.
- Shows error so developers can understand what mistake they are making.
I had also like to share my source code, it would be great if I could have some feedback, or suggestion - or any bug reports. Please do not use this to copy my plugin and use it as yours.
Source Code
I know it’s way too simple. Please note, this is my first plugin 
local plugInButton = plugin:CreateToolbar("Techyfied's Plugins"):CreateButton("ThumbnailCreator", "Create custom thumbnail for your model and publish to ROBLOX!", "rbxassetid://5349149252")
local Selection = game:GetService("Selection")
local pluginOn = false
local gui = script.Parent.ThumbnailCreatorGui
gui.Parent = game.CoreGui
local allowedClasses = {
["Model"] = true,
["Part"] = true,
["CornerWedgePart"] = true,
["MeshPart"] = true,
["TrushPart"] = true,
}
plugInButton.Click:Connect(function()
pluginOn = not pluginOn
plugInButton:SetActive(pluginOn)
if pluginOn then
game.Workspace.Camera.FieldOfView = 40
mainVisible()
else
game.Workspace.Camera.FieldOfView = 70
mainVisible()
end
gui.Enabled = pluginOn
end)
-------------------------------------------------------------------------------------------
local button = gui.Frame.Main.Button
local mainText = gui.Frame.Main.MainText
local errorText = gui.Frame.Main.ErrorText
local successText = gui.Frame.Main.SuccessText
function mainVisible()
mainText.Visible = true
errorText.Visible = false
successText.Visible = false
end
function errorVisible()
mainText.Visible = false
errorText.Visible = true
successText.Visible = false
end
function successVisible()
mainText.Visible = false
errorText.Visible = false
successText.Visible = true
end
function createThumbnail()
local cCamera = game.Workspace.Camera:Clone()
local selectedObjects = Selection:Get()
local parent = workspace
if #selectedObjects == 1 then
local firstSelection = selectedObjects[1]
parent = firstSelection
if allowedClasses[parent.ClassName] then
local oldThumbnailCamera = parent:FindFirstChild("ThumbnailCamera")
if oldThumbnailCamera then
oldThumbnailCamera:Destroy()
end
cCamera.Parent = parent
Selection:Set({cCamera})
cCamera.Name = "ThumbnailCamera"
successVisible()
wait(7)
mainVisible()
else
errorVisible()
errorText.Text = "The class you have selected is not allowed. Try using a part or model"
wait(5)
mainVisible()
end
end
if #selectedObjects == 0 then
errorVisible()
errorText.Text = "Nothing selected. Select a model and try again"
wait(3)
mainVisible()
end
if #selectedObjects >= 2 then
errorVisible()
errorText.Text = "Too many items selected. Please select one model and try again."
wait(4)
mainVisible()
end
end
button.MouseButton1Click:Connect(function()
createThumbnail()
end)
Tutorial
It is really easy if you know what you are doing.
-
Make a model or get any model inside workspace. I’ll be using “Drooling Zombie” as an example.
-
Now click on the plugin button to turn it on
-
Your screen should look like this
-
Now move your camera to the angle you want.
-
In explorer, select the model that you are making thumbnail of.
-
Click on the done button of the plugin
And you’re done if it’s success. If it says error, try again. Now right click on the model, save to Roblox. Please note that, in studio preview, the custom thumbnail will not be previewed. It works when you upload. Simple save it. And then - go to “My Models” from Toolbox and BOOM. You have successfully set your custom thumbnail. It is now going to make more developers interested in your model or script.
You can now click on the Plugin button again to close.
If you want to see if this actually works, this is the model. Check it out!
Compare Studio View & Thumbnail View
in Studio:
Model thumbnail view (on Website):
Model thumbnail view (on studio Toolbox)
Please note:
- This won’t work unless you have a camera called Camera in workspace, which is added by default in Roblox games. Do not rename it. I’m still trying to fix this and make it work for any workspace camera.
- As it’s my first plugin, it might have a lots of bug.
Thank you 
. Feel free to suggest anything, or report bugs - by messaging me or replying here. Also you can add me in Discord, Techy#9999 for more plugin ideas. Before leaving,
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