_CameraDepthTexture doesn't work

Hi,

I'm trying to compute the distance of every objects in the camera frustum by using the _CameraDepthTexture in a shader.
Here is my code but it doesn't work, I have uninitialized or strange values for each pixels :

Code (CSharp):

1. cam = GetComponent <Camera > ();
2. cam.depthTextureMode = DepthTextureMode.Depth;
3.  
4. Texture2D depthTexture = new Texture2D(resWidth, resHeight, TextureFormat.RHalf, false);
5.         RenderTexture rt = new RenderTexture(resWidth, resHeight, resDepth, RenderTextureFormat.Depth);
6.  
7. Graphics.Blit(depthMaterial.mainTexture, rt);
8.         RenderTexture.active = rt;
9.         depthTexture.ReadPixels(new Rect(0, 0, resWidth, resHeight), 0, 0);
10.         depthTexture.Apply();
11.  
12.         Color[] depthData = depthTexture.GetPixels();

I've tried to use the defaulte render pipeline as well as LWRP but none of them work.
Can you tell me what am I missing pls ?

 

Hi,
I think you are doing it a bit wrong. Didn't you ask this in another thread elsewhere already?

 

Hi, yes I am, but I'm a bit lost in this topic, I tried many things but nothing seems to work so I tried to ask the question differently to improve my chances to have an answer.

 

If you're still stuck I can maybe prepare an example later tonight.

 

Hi, sorry for the delay but I've been working on something else meanwhile.
Yes, I'm still stuck and I would really appreciate an example if possible