Project training of Software College of Shandong University rendering engine system radiation pre calculation (VIII)

Preface

This project hopes to implement a basic renderer , At the same time, it can support the use of precomputing . This article mainly explains the use of VBuffer Specific code .
Project address

One 、 Basic logic

The original VBuffer Emit primary light at the camera to each pixel of the screen , Let's change here , When changing to the first frame, the primary light is emitted in the same direction of their local space at some point clouds , Change one direction per frame .

Two 、 Main function code

1、 Get point cloud information

2、 At the point cloud, press the frame direction cubemap Tracking in all directions

summary

It mainly shows the pre calculation VBuffer The main code of function realization .