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# docs.GL

GLSL 4
GLSL ES 3

# packHalf2x16

## Name

packHalf2x16 — convert two 32-bit floating-point quantities to 16-bit quantities and pack them into a single 32-bit integer

## Declaration

`uint packHalf2x16(` | vec2 v`)`;

## Parameters

`v`

  Specify a vector of two 32-bit floating point values that are to be converted to 16-bit representation and packed into the result.

## Description

`packHalf2x16` returns an unsigned integer obtained by converting the components of a two-component floating-point vector to the 16-bit floating-point representation found in the OpenGL ES Specification, and then packing these two 16-bit integers into a 32-bit unsigned integer. The first vector component specifies the 16 least-significant bits of the result; the second component specifies the 16 most-significant bits.

## Version Support

| OpenGL ES Shading Language Version
--- | ---
Function Name | 1.00 | 3.00 | 3.10
packHalf2x16 | - | ✔ | ✔

## See Also

unpackHalf2x16

## Copyright

Copyright © 2011-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. https://opencontent.org/openpub/.

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