Question _CameraDepthTexture is always white

Hello,

I'm trying to make a shader which basically displays Black if the material is Opqaue and the Depth if the material is of rendertype Water

I'm trying to do this in the editor so I bake this texture which saves in the scene.
Currently doing this all from inside OnInspectorGUI from Editor

Code (CSharp):

1.         camera.enabled = false;
2.         camera.orthographic = true;
3.         camera.nearClipPlane = 0.01f;
4.         camera.backgroundColor = Color.black;
5.         camera.depthTextureMode |= DepthTextureMode.Depth;
6.         camera.clearFlags = CameraClearFlags.Color;
7.         camera.depth = 100.0f;
8.         camera.renderingPath = RenderingPath.Forward;

Code (CSharp):

1.         camera.RenderWithShader(replacementShader, "RenderType");

Shader

Code (CSharp):

1. Shader "Water Ambient Render Depth" {
2.     SubShader{
3.     Tags { "RenderType" = "Water" }
4.     Pass {
5.         CGPROGRAM
6.  
7.         #pragma vertex vert
8.         #pragma fragment frag
9.         #include "UnityCG.cginc"
10.  
11.         sampler2D _CameraDepthTexture;
12.  
13.         struct v2f {
14.             float4 pos : SV_POSITION;
15.             float2 uv : TEXCOORD0;
16.         };
17.  
18.         v2f vert(appdata_img v) {
19.             v2f o;
20.             o.pos = UnityObjectToClipPos(v.vertex);
21.             o.uv = v.texcoord.xy;
22.             return o;
23.         }
24.  
25.         half4  frag(v2f i) : COLOR{
26.             half depth = half(Linear01Depth(tex2D(_CameraDepthTexture, i.uv).r));
27.  
28.             return half4(depth,depth,depth,depth);
29.         }
30.         ENDCG
31.     }
32.     }
33.     SubShader{
34.     Tags { "RenderType" = "Opaque" }
35.     Pass {
36.         CGPROGRAM
37.  
38.         #pragma vertex vert
39.         #pragma fragment frag
40.         #include "UnityCG.cginc"
41.  
42.         struct v2f {
43.             float4 pos : SV_POSITION;
44.         };
45.         v2f vert(appdata_base v) {
46.             v2f o;
47.             o.pos = UnityObjectToClipPos(v.vertex);
48.             return o;
49.         }
50.         half4 frag(v2f i) : SV_Target{
51.             return half4(0.0f,0.0f,0.0f,1.0f);
52.         }
53.         ENDCG
54.     }
55.         }
56.    
57. }

But all i get is this



The white squares are water both at different heights. But as you can see they are a solid white.

Any advice for be great!

Best,
Tom

 

As far as I know if you're using DepthTextureMode.DepthNormals then the depth and normals get written to _CameraDepthNormals and not _CameraDepthTexture, then to extract depth you use DecodeDepthNormal( tex2D(_CameraDepthNormals, uv), depth, normal)

 

But I only want the depth not the normals so surely _CameraDepthTexture and DepthTextureMode.Depth would work.. right?

 

Yeah that would work I think

 

That's what we already doing, but it's not working

 

reducing FarClippingPlanes value might solve this issue

 

Thanks for the response. I believe we solved this in the end.

 

What was the solution @RubberBandGames?