Project training of Software College of Shandong University rendering engine system basic renderer (III)

Preface

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

One 、 Basic logic

We first emit the primary light , Small hole camera is used , Start with the camera , Prepare to emit light to each pixel within the screen , That is, the starting position of a given light 、 Direction 、 Minimum distance and maximum distance , Track to get the specific information of the first hit point , The formal path tracking will be done later PathTracer In the middle of .

Two 、 Main function code

1、 Define resources in the header file

2、 At present Pass Proprietary resources

3、 At present Pass Add output

4、Pass Construction

5、 Related resource binding and execution

7、GPU Resource binding

8、 Generate rays

9、 Save the light source hit point resource

summary

It mainly shows VBuffer The main code of function realization .