(solved) Creating a Material that uses only a custom cubemap

[rapid sequoia]

this is the vmt

"VertexlitGeneric"
{
    "$envmap" "models/test_block/test_cubemap"
}

and this is the vtf

(all 6 faces of the cubemap are just this texture but flipped)

[rapid sequoia]

(solved) Creating a Material that uses only a custom cubemap