NAME¶

unpackUnorm2x16,_unpackUnorm4x8,_unpackSnorm4x8 - unpack floating-point values from an unsigned integer

DECLARATION¶

vec2 unpackUnorm2x16(uint p);

vec2 unpackSnorm2x16(uint p);

vec4 unpackUnorm4x8(uint p);

vec4 unpackSnorm4x8(uint p);

PARAMETERS¶

p

DESCRIPTION¶

unpackUnorm2x16, unpackSnorm2x16, unpackUnorm4x8 and unpackSnorm4x8 unpack single 32-bit unsigned integers, specified in the parameter p into a pair of 16-bit unsigned integers, four 8-bit unsigned integers or four 8-bit signed integers. Then, each component is converted to a normalized floating-point value to generate the returned two- or four-component vector.

The conversion for unpacked fixed point value f to floating-point is performed as follows:

The first component of the returned vector will be extracted from the least significant bits of the input; the last component will be extracted from the most significant bits.

VERSION SUPPORT¶

SEE ALSO¶

packUnorm2x16(), packUnorm4x8(), packSnorm4x8()

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. http://opencontent.org/openpub/.

COPYRIGHT¶

Copyright © 2011-2014 Khronos Group