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It is possible to set manual Groove and Marbles options for the entire surface. These allow you to see these as if they cover the entire road to give you some indication of their effect.
PostFX Adjustment
The default PostFX roll out no longer works. In order to expose the new PostFX adjustments requires a special file and then a 'PP LIB PostFX' roll out will appear. Please ask for further information about this if necessary.