Move back-tranform of pre-transformed vertices to postTransform.

Bug 22624951

Change-Id: Ib8dfda6ed983f385a236b014d9b635a0c343071f
Reviewed-on: https://swiftshader-review.googlesource.com/3741
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
1 file changed