No additional light shadows in custom shader

Hi,

I was trying to use this sample shader as a base for my own lit URP material:
https://gist.github.com/phi-lira/225cd7c5e8545be602dca4eb5ed111ba

Unfortunately - I cannot get shadows from point lights to work. Shadow from directional light work fine, but there's no additional ones (neither from spot or point lights).
I've checked "Receive Shadows" in material properties and I've enabled shadows in pipeline settings - there's still no shadows on this custom shader.
However - on standard Lit material everything works fine - all lights cast shadows. So the renderer settings should be fine and the problem lies within the shader alone.

Is there something else I should do? Or is the shader above deprecated?
Even simple copy-paste from source above does not produce point light shadows.

 

Sample shadowmap again for additional lights works for me.

Code (CSharp):

1. float4 shadowMask = SAMPLE_SHADOWMASK(dynamicLightmapUV);

and in light loops, add it as a additional parameter:

Code (CSharp):

1. Light light = GetAdditionalLight(lightIndex, IN.positionWS, shadowMask);

 

What is dynamicLightmapUV in this context?