public struct UIMesh

_vertices and _indices are required. The optional extras (_uv1, _uv2, _uv3, _normal, _tangent) are channels the panel must have opted into via _extraVertexChannels or _extraVertexChannels. Providing a slice for a channel the panel did not enable logs an error and drops that slice.

Each non-empty extras slice must have ; mismatches are logged and the entire draw is dropped.

Channels enabled on the panel but left empty in the draw are zero-filled.

Slices passed to MeshGenerationContext.DrawMesh are read at flush time, not at the call site. Slices returned by MeshGenerationContext.AllocateTempMesh are guaranteed valid through the flush; user-supplied slices must remain valid until the same flush point.

Vector4

.w

.w