Need help with RayCast

[3EloHIyChay123123 (XLEBTOP)]

how to make it so that if the player looks or an object appears on the screen, then you need to deal damage?

[ketrab2004 (ketrab)]

You don’t need raycast for that, you can just use :WorldToViewportPoint(). It returns whether a point is on the screen (next to where it is on the screen).

[3EloHIyChay123123 (XLEBTOP)]

And can you explain how it works?

[ketrab2004 (ketrab)]

It uses math to calculate:

@ketrab2004

returns whether a point is on the screen (next to where it is on the screen).

(what I said and linked to)

[3EloHIyChay123123 (XLEBTOP)]

it’s not for me that if see there is a model part or a meshpart, then damage must be done

[ketrab2004 (ketrab)]

Next time you should look through the forum better, this has already been asked:

Check if an object is in the screen

People say I should use camera:WorldToScreenPoint, but I they still return when its in the screen and blocked completely by another part, i thought i should do raycasting but it only returns true when Im looking directly at it, imagine a part in your top left corner of the screen, i want it to load but i have to look directly to it i want it to load when its in my screen and i can SEE it

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Using :WorldToViewportPoint() or :WorldToScreenPoint() is the only way. The answer to the above post also uses :GetPartsObscuringTarget() to see if there are any parts in the way.

Check if an object is in the screen

local _, OnScreen = workspace.CurrentCamera:WorldToScreenPoint(ObjectPosition) if OnScreen then if #workspace.CurrentCamera:GetPartsObscuringTarget({workspace.CurrentCamera.CFrame.Position,Object.Position},{Object}) == 0 then -- its on screen and its not obstructed end end This does not detect Transparent parts

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The limit of this is that large parts might result in false negatives (because then you can see the edges but not the center which is used in :WorldToViewportPoint()) and false positives with transparent parts like described in the solution.