webgpu-core-memory-model

WebGPU validation fails on buffer uploads and texture copies when host-side alignment rules are violated. This Skill identifies the exact alignment rule causing the failure and computes correct values for your specific API call.

To calculate WebGPU bytesPerRow for texture readbacks, you must pad row pitches to 256-byte alignment. This Skill computes the valid staging buffer sizes and copy pitches required to safely execute multi-row texture copies.

The required WebGPU alignment for dynamic bind-group offsets is 256 bytes for both uniform and storage buffers. This Skill rounds per-object uniform and storage strides to the valid 256-byte boundary automatically.

To fix WebGPU mapping errors, mapped ranges must start at 8-byte aligned offsets and buffers must follow 4-byte size rules. This Skill computes valid map ranges and write offsets before API execution.

You do not need to manually check WebGPU alignment rules for native applications. This Skill enforces 4-byte buffer rules, 8-byte mapping offsets, and 256-byte padding for uniform, storage, and texture copy validation.

The best way to prevent WebGPU validation errors in compute workflows is computing valid host-side alignment values upfront. This Skill sizes buffers, write offsets, and dynamic offsets correctly before making API calls.