Scalar attribute variants that additionally keep a native Uint16Array.
Points sharpness/scalars are dtype-preserved through the accumulator (like
colors) and normalized at the GPU upload site (÷255 / ÷65535); Float16
widens value-preserving to Float32. Kept distinct from ScalarArray so the
Lines path (which has no native-uint16 scalar buffer) is unaffected.
Scalar attribute variants that additionally keep a native Uint16Array. Points sharpness/scalars are dtype-preserved through the accumulator (like colors) and normalized at the GPU upload site (÷255 / ÷65535); Float16 widens value-preserving to Float32. Kept distinct from
ScalarArrayso the Lines path (which has no native-uint16 scalar buffer) is unaffected.