Testing this out on Unity 2022.3.21f1. When applying the provided prefab to a URP project (assuming it works the same way for HDRP), the volumetric light prefab works as intended, as shown by the following image.
However, when using this asset in a BiRP project, the prefab breaks due to the assets missing from the default project that are found in a URP or HDRP project, as shown in the following image.
Though the shader and shadergraph are also unsupported in this BiRP project, I managed to find an external package that adds support back for shadergraphs. Therefore, the volumetric lighting doesn't work in a BiRP project due to the script titled "Universal Additional Lighting Data" being missing from the basic non-URP/non-HDRP Unity template.
Testing this out on Unity 2022.3.21f1. When applying the provided prefab to a URP project (assuming it works the same way for HDRP), the volumetric light prefab works as intended, as shown by the following image.
However, when using this asset in a BiRP project, the prefab breaks due to the assets missing from the default project that are found in a URP or HDRP project, as shown in the following image.
Though the shader and shadergraph are also unsupported in this BiRP project, I managed to find an external package that adds support back for shadergraphs. Therefore, the volumetric lighting doesn't work in a BiRP project due to the script titled "Universal Additional Lighting Data" being missing from the basic non-URP/non-HDRP Unity template.