Christopher Wallis
Software Developer at The Coalition Studio
Bellevue, Washington, United States
Summary
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Rockstar🎓
Top SchoolChristopher Wallis is a rendering-focused software developer with 13 years of experience building graphics systems for games and Windows graphics APIs. Currently on The Coalition's rendering team in Bellevue, he previously spent five years on Direct3D/Windows Graphics at Microsoft, where he contributed substantial DXR ray tracing samples and the Raytracing Fallback Layer used by the widely referenced microsoft/DirectX-Graphics-Samples repo. He specializes in low-level GPU features—ray tracing, shader record management, and acceleration-structure edge cases—and has a track record of fixing subtle instance/index and transform bugs that enable complex engine passes to run on native drivers. Christopher pairs strong academic fundamentals (B.S. in Computer Science from Cal Poly) with practical experience shipping high-performance rendering code in production game engines. Colleagues describe him as a meticulous problem-solver who surfaces hard-to-find graphics bugs and turns reference tech into usable samples for the broader developer community.
13 years of coding experience
5 years of employment as a software developer
California Polytechnic State University, San Luis ObispoA.A., Liberal Arts, 3.85, A.A., Liberal Arts, 3.85 at West Hills College Lemoore
Github Skills (6)
raytracing10
hlsl10
c-language10
direct3d10
cprogramming-language10
shader10
Programming languages (2)
Github contributions (5)
microsoft/DirectX-Graphics-Samples
Mar 2018 - Jun 2018
This repo contains the DirectX Graphics samples that demonstrate how to build graphics intensive applications on Windows.
Role in this project:
Software Engineer
Software EngineerContributions:4 releases, 41 commits, 70 PRs in 3 months
Contributions summary:Christopher primarily contributed to the DirectX Graphics samples, focusing on the implementation of ray tracing features. They published DXR samples and the Raytracing Fallback Layer, including components for ray tracing. The user added support for Shader Records with Descriptor Tables and Empty Top Level Acceleration Structures, and fixed issues related to instance indices and object transforms. They also implemented fixes for various other issues that enable most MiniEngine passes to run on native DXR drivers.
windowsdirectx-11directx12directxintensive
wallisc/DirectX-Graphics-Samples
Mar 2018 - Jul 2023
This repo contains the DirectX Graphics samples that demonstrate how to build graphics intensive applications on Windows.
Contributions:14 pushes, 1 branch in 5 years 5 months
windowsdirectxrenderingintensivegraphics
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