packDouble2x32 - create a double-precision value from a pair of unsigned integers

       Copyright © 2011-2014 Khronos Group

[FIXME: source]                                    11/18/2024                                 PACKDOUBLE2X32(3G)

doublepackDouble2x32(uvec2v);

packDouble2x32 packs the component of parameter v into a 64-bit value. If an IEEE-754 infinity or NaN is
       created, it will not signal and the resulting floating-point value is undefined. Otherwise, the bit-level
       representation of v is preserved. The first vector component (v[0]) specifies the 32 least significant
       bits of the result; the second component (v[1]) specifies the 32 most significant bits.

       packDouble2x32 - create a double-precision value from a pair of unsigned integers

v
           Specifies a vector of two unsigned integers to be packed into a single double-precision result.

unpackDouble2x32()

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       │                │        OpenGLShadingLanguageVersion                                            │
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       │ Function       │ 1.10 │ 1.20 │ 1.30 │ 1.40 │ 1.50 │ 3.30 │ 4.00 │ 4.10 │ 4.20 │ 4.30 │ 4.40 │ 4.50 │
       │ Name           │      │      │      │      │      │      │      │      │      │      │      │      │
       ├────────────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
       │ packDouble2x32 │  -   │  -   │  -   │  -   │  -   │  -   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │
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