Question Proper way to access shadows and light cookie in a post processing shader

I've been able to have some shadow information in my outline shader via:

Code (CSharp):

1.  
2.                 float4 coord = getShadowCoord_SingleCascade(finalPos);
3.                 fixed shadow = UNITY_SAMPLE_SHADOW(_ShadowMapTexture, coord);
4.                 shadow = lerp(_LightShadowData.r, 1.0, shadow);
5.                 float4 shadows = (shadow < coord.zzzz) ? _LightShadowData.rrrr : 1.0f;

Now, everything breaks if I add a pointlight etc. Is there a proper way of sampling with the macros in AutoLight.cginc? My understanding is that these require the usage of TRANSFER_SHADOW macros etc. and wouldnt work with a post processing shader?

 

Code (CSharp):

1.   #define DIRECTIONAL_COOKIE
2.             #define SHADOWS_SCREEN
3.             #define SHADOWS_SHADOWMASK
4.             #define UNITY_NO_SCREENSPACE_SHADOWS
5.  
6. was able to figure out something, these must be in top of whatever shader that wants to use to autolight things.

 

The cookie + shadow appears right on the editor window, but upon build it seems to "stretch".



Any idea what could be causing this? using latest LTS 2021. The problem disappears, when I just dont use the cookie texture in the directional light. I suspect that something happens to the light textures and matrices upon post processing stage, that is only on build. This stretching only happens on post processing stage, that is, if i turn off the outlines and the grass, the cookie is properly "projected" on ground and props.

Code (CSharp):

1. Im using these directives
2.             #define DIRECTIONAL_COOKIE
3.             #define SHADOWS_SCREEN
4.             #define SHADOWS_SHADOWMASK
5.             #define UNITY_NO_SCREENSPACE_SHADOWS
6.  
7. and sampling with
8.  
9. UNITY_LIGHT_ATTENUATION(atten, i, finalPos);

 

There is something weird going on. Upon build, if I build in debug mode, and turn the frame debugger on, the stretching disappears and everything works. I think I should make a bug report.