A documentation for the Ray Tracer Datapath can be found in a PDF file in the release where the following are discussed:
- Supported operations
- IO specification
- Configurable parameters
- Dataflow of pipeline stages
- Hardware assets
- Design choices
- Description of source files
The code in this project was tested with verilator version 4.038 and sbt version 1.8 or mill version 0.10.12.
- verilator (for running the testbenches)
- sbt (optional) (for building the project with SBT)
mill raytracer.test.testOnly raytracer_datapath.Datapath_test
or
sbt test:testOnly raytracer_datapath.Datapath_test
Mill should be ready to use because a wrapper file for mill 0.10.12 is included with this project.
mill raytracer.test
or
sbt test
If you use the RTL modules in this repo please consider citing:
Aaron Barnes, Fangjia Shen, Timothy G. Rogers,
Extending GPU Ray-Tracing Units for Hierarchical Search Acceleration,
in 2024 57th IEEE/ACM International Symposium on Microarchitecture (MICRO)
Fangjia Shen, Aaron Barnes, Anusuya Nallathambi and Timothy G. Rogers,
RayFlex: An Open-Source RTL Implementation of the Hardware Ray Tracer Datapath,
in 2025 IEEE International Symposium on Performance Analysis of Systems and Software (ISPASS)
Aaron Barnes (barnes88@purdue.edu)
Fangjia Shen (shen449@purdue.edu)