This is my 3D Simulation project of 3D Game Programming at NTUST. The name RayRayRay i randomly picked when i was trying to implement ray picking feature. This application is an Roller Coaster Simulation. User can set up their own track, by modifying track point. Several Interpolation algorithms were used such as Linear, Cubic Bezier, and Cubic B-Spline. The environment consists of Terrain along with water simulation and also Skyplane