Get Tiles In Players Field Of View

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#1

I’m creating a tile-based game with chunks, I’ve implemented a player field of view (FOV) using attachments and raycasts, which dynamically adjust the visible area.

Here’s an example of how it looks:

RobloxScreenShot20250326_213004747
RobloxScreenShot20250326_2130047471331×749 54.4 KB

Now, I need a way to determine which tiles are within the player’s field of view:
From this:

RobloxScreenShot20250326_214356007
RobloxScreenShot20250326_2143560071331×749 56.8 KB

To this:
RobloxScreenShot20250326_215057558
RobloxScreenShot20250326_2150575581331×749 59.2 KB

also knowing which tiles are more visible and which are less visible, as represented in the image by different shades of blue.

How could I do that?

1 Like
#2

Hmm, you could try shooting raycast out of the player’s head to the center of each tile to see if it’s obstructed along the way.

#3

I would use CollectionService and WorldToScreenPoint

local RunService = game:GetService("RunService")
local CollectionService = game:GetService("CollectionService")

local Camera = Workspace.CurrentCamera
local Tiles = CollectionService:GetTagged("Tile")

RunService.RenderStepped:Connect(function()
   for _,Tile in Tiles do
     local _,OnScreen = Camera:WorldToScreenPoint(Tile.Position)
     if OnScreen then
        print(Tile.Name,"On Screen")
     end
   end
end)

Note that you could do alot to further optimize this, and it doesnt account for tiles created during runtime (you’d want to implement this for slow load times / issues with streaming enabled)