[Help] textures

Unity Engine
1

Hello all unity3D coders i need some help displaying a blood image when the player is hit by a zombie i have a image for it i just dont know how to make it show on the camera view for 4 secs here is my code:

void OnTriggerEnter(Collider col){

        if (col.tag == "zombie")
         {
			
           Health -= 4;

         
		}
	
	
	
}
2

I beleave you have two ways of doing it.
One you can have a plane textured in front of the camera and you change the alpha value of it to make it apear, disapear or even fade between.
Or you could use a Gui texture to show in the camera. But i think the first choise is easier and you have more control over it.
hope it helps

3

I am unsure how to do this can you please give me a code example?

4

I’m at work so i’ll have to do it with out cheking if it correct, but it would be something like this.

void OnTriggerEnter(Collider col){

if (col.tag == “zombie”)

{
bloodPlane.material.mainTexture.color.a = 1; // from 0 to 1 range. 0 beeing full transparent.
Health -= 4;
}
}

I’m not sure thou if that’s the correct way to modify the material transparency. You can smooth it in or out using Mathf.lerp over time.

5

By the way. you need to set the material of the plane to diffuse transparent or some shader that has transparency value . and set it to full transparent on start.

6

ok thanks