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Explain shader compilers and graphics APIs

NVIDIASoftware Engineer · Onsite
HardSoftware EngineerOnsiteSystem Design

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This interview question evaluates requirements, scale assumptions, API/data design, architecture, trade-offs, failure modes, and rollout in a realistic interview setting. A strong answer for Explain shader compilers and graphics APIs states assumptions, handles edge cases, explains trade-offs, and shows how to validate the result clearly.

Explain the shader compilation pipeline from HLSL/GLSL source to GPU-executable code, including front-end parsing, intermediate representations, optimization passes, reflection metadata, and backend code generation. Compare a DirectX-like graphics API with Vulkan/OpenGL in resource binding models, command submission, and pipeline state management. Outline how you would design a minimal shader compiler’s front end and back end.