Use the projection matrix to scale z.

Bug 22123818

Change-Id: I2c72e221d9d9410c32875188a5edea6ce7310f20
Reviewed-on: https://swiftshader-review.googlesource.com/3625
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
3 files changed