Can't reproduce projection or view matrix in script

Hello, I'm trying to make a shadow map but I'm stuck on getting the light source's projection and view matrices.
It makes no sense because I manually create the matrices, apply them to the camera, pass them to the shader, and then they do not match.

I create the matrices then apply them to the camera and shader like so:

Code (CSharp):

1. sCam.worldToCameraMatrix = lightViewMatrix;
2.             sCam.projectionMatrix = projectionMatrix;
3.  
4.             shadowMapMaterial.SetMatrix("_viewMatrix", lightViewMatrix);
5.             shadowMapMaterial.SetMatrix("_projectionMatrix", projectionMatrix);

But when I compare them in the shader then are not equal to their built in counterparts:

Code (CSharp):

1. fixed4 frag (v2f i) : SV_Target
2.             {
3.                 if (i.uv.x < .5)
4.                 {
5.                     if (_viewMatrix[0].x == UNITY_MATRIX_V[0].x)
6.                         return fixed4(0, 1, 0, 1);
7.                     else
8.                         return fixed4(1, 0, 0, 1);
9.                 }
10.                 else
11.                 {
12.                     if (_projectionMatrix[0].x == UNITY_MATRIX_P[0].x)
13.                         return fixed4(0, 1, 0, 1);
14.                     else
15.                         return fixed4(1, 0, 0, 1);
16.                 }
17.             }

I have also tried using GL.GetGPUProjectionMatrix for the projection matrix but that doesn't work either.

It is necessary for me to get the exact UNITY_MATRIX_V and UNITY_MATRIX_P from this camera because I need to use them later in another shader on another camera.

Any help would be appreciated.

 

I think I solved it. I was able to make them match when applying them to a replacement shader. I guess screen materials use different matrices.