I must admit having knocked Diogo and Ivan's work into that IP tool, and played
with it, I can't see that I would care about too much speed, Its not as if I
would use it that often.
If I did I would probably just pre-render as a layer anyway, or just use a
curve tool.
Thanks to the discussion though, there is now a one click option available
which seems reasonably fast, though haven't tested hundreds of layers on it.
Howard
>________________________________
> From: Nathan Rusch <[email protected]>
>To: Nuke user discussion <[email protected]>
>Sent: Sunday, 14 October 2012, 23:38
>Subject: Re: [Nuke-users] Normalize Viewer
>
>
>Seems like this feature is a perfect candidate to be implemented directly
on the GPU, since it already has the display buffer, and absolute accuracy
isn’t
paramount.
>
>-Nathan
>
>
>From: Jonathan Egstad
>Sent: Sunday, October 14, 2012 9:50 AM
>To: Nuke user discussion
>Cc: [email protected]
>Subject: Re: [Nuke-users] Normalize Viewer
> Hi Frank,
>
>Not to a devil's advocate or anything...but calculating the min/max of an
image means sampling the entire image before a single pixel can be drawn in the
Viewer. Needless to say this will destroy Nuke's update
speed.
>
>As long as that's understood as a side-effect of this feature, then soldier
on.
>
>-jonathan
>
>Sent from my iPhone
>
>On Oct 13, 2012, at 6:22 PM, Frank Rueter <[email protected]>
wrote:
>
>
>None of those solutions actually produce what we're after though (some of
>your solutions seem to invert the input).
>>
>>We need something that can
compresses the input to a 0-1 range by offsetting and scaling based on the
image's min and max values (so the resulting range is 0-1). You can totally
do
this with a Grade or Expression node and a bit of tcl or python (or the
CurveTool if you want to pre-compute), but that's not efficient.
>>
>>I
reckon this should be a feature built into the viewer for ease-of-use and
speed.
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