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ItsClonkAndre

Check if position is visible to camera

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ItsClonkAndre

Hello everyone!

 

i want to check if a position is in sight and not blocked by buildings etc.

I've found this code here:

        public bool isCoordVisible(Vector3 WorldCoord, float AreaSize = 1f) 
        { 
            if (Game.Exists(Game.CurrentCamera)) 
            { 
                return GTA.Native.Function.Call<bool>("CAM_IS_SPHERE_VISIBLE", Game.CurrentCamera, WorldCoord.X, WorldCoord.Y, WorldCoord.Z, AreaSize); 
            } 
            else 
            { 
                return false; 
            } 
        }

I found this code from this thread: Draw text inside world?

And if i read the replies from this thread, is seems to work for them. But unfortunately, this code does not work for me. It always returns false.

 

Can it be that the 2020 patch is to blame? We all know that R* is trying to kill the mod support as much as possible.

Do you guys know whats wrong here? Or do you know other methods to check if the line of sight is not blocked by something?

Thanks in advance!

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Teki

Hi !

You have to use the game viewport, not the CurrentCamera :

public bool isCoordVisible(Vector3 WorldCoord, float AreaSize = 1f) {
  Pointer ViewportId = new Pointer(typeof(int));
  Function.Call("GET_GAME_VIEWPORT_ID", ViewportId);
  bool visible = false;
  if ((int) ViewportId != -1) {
 	 visible =  GTA.Native.Function.Call<bool>("CAM_IS_SPHERE_VISIBLE", (int) ViewportId, WorldCoord.X, WorldCoord.Y, WorldCoord.Z, AreaSize);
  }
  ViewportId.Dispose();
  return visible; 
}

 

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ItsClonkAndre

Hey, thanks for your code it works! But one last thing: the line of sight is not getting interrupted when the player is behind a building and looks at the direction of the coords. Is it possible that the line of sight breaks when the player is behind a building and that the code returns false?

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Teki

Sorry but I don't know. If you find a way to do this, please share it whith us !

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ItsClonkAndre

I will! And thanks again for your code :)

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