GPU Pro 5

1

I

Per-Pixel Lists for

Single Pass A-Buffer

Sylvain Lefebvre, Samuel Hornus,

and Anass Lasram

1.1 Introduction

Real-time effects such as transparency strongly benefit interactive modeling and

visualization. Some examples can be seen Figure 1.1. The rightmost image is

a screenshot of our parametric Constructive Solid Geometry (CSG) modeler for

3D printing, IceSL [Lefebvre 13]. Modeled objects are rendered in real time with

per-pixel boolean operations between primitives.

Figure 1.1. Left: Joystick model rendered with the Pre-Open A-buffer technique de-

scribed in this chapter, on a GeForce Titan. 539236 fragments, max depth: 16, FPS:

490. Middle: Dinosaur in ...