bpy.types.Material.shader = bpy.props.StringProperty(name="Custom shader", description="Name of an external technique to use for rendering")
bpy.types.Material.array_atlas = bpy.props.BoolProperty(name="Texture array atlas", description="The material is stored in a texture array")
bpy.types.Material.array_layer = bpy.props.IntProperty("Texture array layer", description="Layer of the texture array atlas to use")
bpy.types.Material.shader = bpy.props.StringProperty(name="Custom shader", description="Name of an external technique to use for rendering")
bpy.types.Material.array_atlas = bpy.props.BoolProperty(name="Texture array atlas", description="The material is stored in a texture array")
bpy.types.Material.array_layer = bpy.props.IntProperty("Texture array layer", description="Layer of the texture array atlas to use")