webgpu-wgsl-builtins

To validate WGSL builtin functions, you check stage-legal math, texture, derivative, atomic, and synchronization builtins against vertex, fragment, and compute shader entry points to prevent shader-creation errors.

Derivative builtins are stage-restricted in WebGPU and cannot be used in compute shaders. They must be validated for correct usage only within fragment shader entry points to avoid creation errors.

Vertex shader @builtin directions require specific input and output type mappings. You must enforce these correct directions and interpolation rules to ensure the WebGPU pipeline validates successfully.

You need feature gates for WGSL subgroups and clip_distances builtins. Checking these gates ensures that your shader correctly declares required hardware capabilities before compilation.

WGSL shader creation fails because certain builtins require uniform control flow. You must enforce these uniform-control-flow rules to prevent invalid execution paths and shader-creation errors.

The best way to choose stage-legal WGSL array and atomic builtins is to validate them against the specific vertex, fragment, or compute shader entry point requirements before compiling.