GPU PRO 3

3

VI

Interactive Ray Tracing Using the

Compute Shader in DirectX 11

Arturo Garc

´

ıa, Francisco

´

Avila,

Sergio Murgu

´

ıa, and Leo Reyes

3.1 Introduction

Currently, the most widely used technique for real-time 3D rendering is ras-

terization, mainly because of its low computational cost and the availability of

efficient hardware implementations. DirectX and OpenGL are the most common

rasterization-based APIs used for high-end video game graphics programming.

Rasterization is well suited for handling animated scenes, and no auxiliary data

structures are needed to display geometrical changes. On the other hand, ray

tracing is traditionally associated with high