koobas.hobune.stream
Ray cast passes through an object when it should record a hit.
I have code which is meant to allow the player to interact with objects by pressing the E key. This has worked for most objects in my game so far but when trying to implement ammo pick ups in the form of small 9mm rounds it stopped working.
Using Debug.Log statements I can see that the ray cast seems to be able to hit everything in the scene apart from the round. The round is on the same Default layer as all my other interactable objects.
void FixedUpdate() {
//leave interaction check
interactionEnding = false;
if (interacting)
{
if (Input.anyKeyDown)
{
leaveInteraction();
}
}
float distance = Vector3.Distance(player.position, transform.position);
//interaction check
if (distance <= radius)
{
//if E pressed and not currently leaving an interaction
if (Input.GetKeyDown(KeyCode.E) && !interactionEnding)
{
Ray ray = new Ray(player.position, player.forward);
RaycastHit hit;
if (Physics.Raycast(ray, out hit, 100))
{
Debug.Log("ray hit " + hit.transform.name);
if (hit.collider.gameObject == gameObject)
{
interact();
}
}
}
}
}
Initially I thought the round was too small to be hit so in order to debug I scaled it up 10x. Still when I face the round and try to interact the debug console returns "ray hit wall(34)" essentially meaning that the ray passes through the round and hits the wall behind it.
The round has the Interactable script component which contains the above code along with a box collider which surrounds the mesh.
I hope these images help:
The inspector. As you can see the layer is set to default. Ignore the odd size dimensions as these don't seem to affect the issue 
The round itself with the box collider wrapped around perfectly. The round is depth shaded and as the unity editor doesn't display depth shading it appears matte grey however most objects in my game are also depth shaded so this shouldn't affect anything either 
As an additional comment. When running the code in Update ins$$anonymous$$d of FixedUpdate the effect is the same
I hate to answer my own question but I solved the problem. As you can see in the inspector I passed the FPScontroller(Transform) to the variable player. This worked fine in the past when the FpsController and FirstPersonCharacter shared a transform however I recently changed the Y axis co-ordinate of the FirstPersonCharacter as I wanted the player to appear taller.
Using debug.drawRay I noticed the ray was originating from my players body and not the player camera meaning for large objects it was accurate enough but for small object it would miss.
By resetting the transform of the FirstPersonCharacter I fixed this issue. To make the character taller I've decided to play with the scale settings of fps controller.
Better Still, I've decided to change the player height using the height variable in the character controller. I hope this helps anyone who stumbles across the same problem. In short, adjusting character height by moving the First person camera is bad practice.
