Presentation features included in X13 include a new real-time ray tracing, watermark camera default, overlay line drawing on to other rendering techniques, a new clay rendering technique, walk through previews and orbital walk throughs.
What's New in X13 - Full List
What's New in X13 - Building Construction
What's New in X13 - Design
What's New in X13 - Drafting & Project Management
What's New in X13 - Presentation
What's New in X13 - Productivity
