maya_compatible - When this is true the BRDFBump will try to match the Maya bump/normal mapping.normal_uvwgen - The uvw generator for the normal map texture when map_type is 1.map_type - The type of the map (0 - from regular texture output, 1 - normal map in tangent space, 2 - normal map in object space, 3 - normal map in camera space, 4 - normal map in world space, 5 - from texture bump output, 6 - explicit normal).bump_shadows - true to offset the surface shading point, in addition to the normal.bump_tex - Bump texture this is deprecated, use bump_tex_color or bump_tex_float.bump_tex_mult_tex - Bump amount texture.
