I got the following messages when I assign fx_bump
to my model :

Error in effect:
mtl_test(22): error X3000:syntax error: unexpected token 'bumpOut'
>float4 DoDiffuse(bumpOut In,float3 Normal)<

Error in effect:
mtl_specBump2(24): error X3000:syntax error: unexpected token 'bumpOut'
>float4 DoBlinn(bumpOut In,float3 Normal)<

Error in effect:
mtl_specBump(26): error X3000:syntax error: unexpected token 'bumpOut'
>float4 DoPhong(bumpOut In,float3 Normal)<

Error in effect:
mtl_bump(22): error X3000:syntax error: unexpected token 'bumpOut'
>float4 DoDiffuse(bumpOut In,float3 Normal)<