koobas.hobune.stream
I am trying to shoot a ray from an game object on a canvas.
Hey! I am trying to shoot a raycast from a UI image but I cannot figure out how to do so. I have tried using a graphic raycaster but I only was able to get it to shoot from my mouse position. I've attached an image to further show my issue, the red dot is where I need the ray to be shot from and the blue arrow is the direction it needs to go. Does anyone know of any solutions?
Vector3 screenPoint = yourMainCamera.WorldToScreenPoint(yourRedDotTransform.position);
Ray aimRay = yourMainCamera.ScreenPointToRay(screenPoint);
Physics.Raycast(aimRay, out var hit, _maxRayDistance);
// Do something with hit object
The idea is to convert your reddot position in scene into position in screen, then use screen position to do raycast
Hi, I've used that but it doesn't seem to be working.
if (Input.GetMouseButtonDown(0))
{
Vector3 screenPoint = cam.WorldToScreenPoint(ringOneLine.transform.position);
Ray aimRay = cam.ScreenPointToRay(screenPoint);
Physics.Raycast(aimRay, out var hit, maxRayDistance);
Vector3 forward = ringOneLine.transform.TransformDirection(Vector3.forward) * 100;
Debug.DrawRay(ringOneLine.transform.position, forward, Color.red);
}
