koobas.hobune.stream
How to scale lines lenght drawn with OnPostRender and GL
Hey guys,
I've been trying to scale lines length drawn by GL lines. My script basically draws a line between a constant point and my mouse cursor. So let's say the constant point is (0,-4,1) and my mouse is at (1,5,1) My goal is drawing the line from the constant point and just draw let's say 0.5 maximum towards to mouse position.
void Start()
{
objectPosition = positionObject.transform.position;
}
void Update()
{
mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
}
void OnPostRender()
{
if (!mat)
{
Debug.Log("Please Assign a material on the inspector");
return;
}
Debug.Log("drawing line");
GL.PushMatrix();
mat.SetPass(0);
GL.Begin(GL.LINES);
GL.Color(Color.red);
GL.Vertex(mousePos);
GL.Vertex(objectPosition);
GL.End();
GL.PopMatrix();
}
with the image, I think it's more clear. black one is the one in my game. red one is basically the black one( I don't know why I added that too) green one is the one I want.
I need the line as long as what I want, not until the input's location. It's suppose to be like a aiming line.
Thanks a lot!
