koobas.hobune.stream
Split Screen where Waterplane intersects with Camera
Hi!
As mentioned here http://forum.unity3d.com/threads/39292-Request-Special-Underwater-Blurring-Script, I have two cameras in my scene, one for the underwater-effect and one for the over-water game. I have a 3rd person controller, and if I swim or wade in the water the camera is able to rotate around the player and dive into it. Therefore I want the screen to split on the line, where the water intersects with the camera. Is there a easy way to find the point of the intersection of the water and the camera and set that as the split value?
Thank you!
Sounds like you just need the compare the camera's y position and the water plane's y position.
Hi! Thank you for your answer!
Yes, I surely did that. Works perfectly if the $$anonymous$$ouseLook-Asis is only on X. But thus I have the $$anonymous$$ouseLook on X and Y Axes, the camera can 'dive' into the water even though it's not under the water surface (because of the angle). Is there a possibility to solve this problem?
Here's my code, attached to a child-objcet camera of the $$anonymous$$ainCam:
using UnityEngine;
using System.Collections;
public class CamSplit : $$anonymous$$onoBehaviour
{
public GameObject water;
public float split;
public float maxViewHeight;
Camera topCam;
void Start ()
{
Transform topTrans = transform.parent;
topCam = (Camera) topTrans.gameObject.GetComponent("Camera");
}
void Update ()
{
split = -(0.5f + ((1/(maxViewHeight*2)) * (transform.position.y - water.transform.position.y)));
if (split <= 0)
{
split = 0.0001f;
}
split = $$anonymous$$athf.Clamp01(split);
float halfHeight = $$anonymous$$athf.Tan(camera.fieldOfView * $$anonymous$$athf.Deg2Rad * .5f) * camera.nearClipPlane;
float upperTop = halfHeight;
float upperBottom = (split - .5f) * halfHeight * 2f;
float lowerTop = upperBottom;
float lowerBottom = -halfHeight;
$$anonymous$$atrix4x4 upper$$anonymous$$at = topCam.projection$$anonymous$$atrix;
upper$$anonymous$$at[1, 1] = (2f * camera.nearClipPlane) / (upperTop - upperBottom);
upper$$anonymous$$at[1, 2] = (upperTop + upperBottom) / (upperTop - upperBottom);
topCam.projection$$anonymous$$atrix = upper$$anonymous$$at;
$$anonymous$$atrix4x4 lower$$anonymous$$at = camera.projection$$anonymous$$atrix;
lower$$anonymous$$at[1, 1] = (2f * camera.nearClipPlane) / (lowerTop - lowerBottom);
lower$$anonymous$$at[1, 2] = (lowerTop + lowerBottom) / (lowerTop - lowerBottom);
camera.projection$$anonymous$$atrix = lower$$anonymous$$at;
Rect botCamRect = camera.rect;
botCamRect.height = split;
camera.rect = botCamRect;
Rect topCamRect = topCam.rect;
topCamRect.height = 1f - split;
topCamRect.y = split;
topCam.rect = topCamRect;
}
}
I am not sure what you mean, are you talking about how you can see the submerged area under teh water surface if you are a little bit higher than the surface? If so, from looking at how many AAA titles still have this problem, I guess there's no easy solution.
