ResourceKind

Not a resource — a plain field or local.

A scalar/vector/matrix shader field: a uniform / constant-buffer entry.

A Buffer<T> or RWBuffer<T>: a storage buffer, laid out std430, whose element count the host decides. Read-only and read-write are the same descriptor type in Vulkan, so the direction lives on the field rather than here.

A RWTexture2D<T> or RWTexture3D<T>: a texture a shader stores into, addressed by integer texel and carrying an explicit storage format.

An AccelerationStructure: the ray-tracing hierarchy the host builds and a ray query traverses. Its own kind because it is its own Vulkan descriptor type — binding one as a texture or a buffer is a pipeline the driver refuses.