This app will generate realistic continuous tin surfaces across the entire Autodesk® Civil 3D® digital space. 

(similar to the endless Minecraft terrain).

The procedural terrain generation algorithm is the improved Perlin Noise. Perlin noise is a type of gradient noise developed by Ken Perlin in 1983. 

https://en.wikipedia.org/wiki/Perlin_noise

Features:

• Covers the entire Civil 3D digital space
• Seamless transition multi-tile surface
• Number of points parameter
• Random Seed parameter
• Horizontal and Vertical Scale parameters when expanding the surfaces or when building