GPU Pro 7

2

II

Fine Pruned Tiled Light Lists

Morten S. Mikkelsen

2.1 Overview

In this chapter we present a new tiled lighting variant with a primary focus on op-

timization for the AMD Graphics Core Next (GCN) architecture. Our approach

was used for the game Rise of the Tomb Raider. In particular, we leverage asyn-

chronous compute by interleaving light list generation with rendering of shadow

maps. Light list generation is done per tile in two steps within the same com-

pute kernel. An initial coarse pass that generates a light list in local storage

using simple screen-space AABB bounding volume intersection testing regardless

of light type. The second step is