Re: vcgt tag
Re: vcgt tag
- Subject: Re: vcgt tag
- From: Graeme Gill <email@hidden>
- Date: Tue, 28 Nov 2006 23:32:54 +1100
Roger Breton wrote:
> You mean that there can be less than 256 entries in the LUT?
Less or more, it doesn't matter.
> If that's the case then this means that it's up to the profiler
> to populate all the 256 posssible LUT entries.
Less or more, it doesn't matter.
The number of entries in the vcgt need bear no relationship to the
number of entries in the LUT, because the vcgt curve entries can be
interpolated to match the number of entries in the LUT. The vcgt
defines a sampled curve, not individual entries for a table.
Graeme Gill.
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