2017

NOTE The IndexMap element is not supported. The most efficient way to achieve the same result is to precede
the operator with another LUT1D element, or to combine both LUTs into a single one.
Contained By
■
ProcessList (page 1328)
Attributes
id, name, bypass, inBitDepth, outBitDepth See
Common Operator Attributes (page 1334).
interpolation Optional. The only currently supported value is "linear".
halfDomain Optional. If this attribute is present, its value must be "true". In this case, the input domain
is all possible 16-bit floating-point values, and there must be exactly 65536 entries in the Array element. For
example, the unsigned integer 15360 has the same bit-pattern (0011110000000000) as the half-float value
1.0, so the 15360th entry (zero-indexed) in the Array element is the output value corresponding to an input
value of 1.0.
rawHalfs Optional. If this attribute is present, its value must be "true". In this case, the values in the array
should be 16-bit floating point values expressed as unsigned 16-bit integers representing the equivalent bit
pattern. For example, to represent the value 1.0, you would enter the integer 15360 in the Array element
because it has the same bit-pattern. This allows you to specify the exact half-float values you want without
relying on conversion from decimal text strings.
Example
1D LUT
<ProcessList id="8a52d5fb-a903-4805-8bae-24f7553bfb70" version="1.2">
<LUT1D inBitDepth="10i" outBitDepth="32f">
<Array dim="1024 1">
-0.014279292
-0.014160193
-0.014040368
<!-- 1021 lines omitted -->
</Array>
</LUT1D>
</ProcessList>
3×1D LUT
<ProcessList id="a76dbe2e-e610-49a6-8c3b-5962375a8b4a" version="1.2">
<LUT1D inBitDepth="16i" outBitDepth="32f">
<Array dim="2 3">
-0.092903227 -0.092903227 -0.092903227
11.798709869 11.798709869 11.798709869
</Array>
</LUT1D>
</ProcessList>
1336 | Chapter 25 Colour Management