it's not tcl, it's Nuke's expression parser, and yes, it does have a max
function so what you suggested is probably the easiest.
On 10/8/12 3:55 AM, Steve Booth wrote:
I forget. Does TCL have a 'max function? If so, it's just:
Max(0, 1 - ControlPanel.Contrat-Factor)
Steve
Sent from my iPad
On Oct 6, 2012, at 11:48 PM, Jesse Kretschmer <[email protected]
<mailto:[email protected]>> wrote:
This question does not seem suited for the nuke-dev list, but that's
no reason to ignore it.
Expressions support a couple things that could help. You could use
the absolute value:
abs(1+ControlPanel.Contrast-Factor)
or, you may want to add some logic with a ternary operation (shortand
if?then:else statement):
1+ControlPanel.Contrast-Factor<0?0:1+ControlPanel.Contrast-Factor
There are probably a ton of other ways to solve this problem, but it
all depends on the context.
cheers,
jesse
On Sat, Oct 6, 2012 at 7:46 PM, Synicade
<[email protected]
<mailto:[email protected]>> wrote:
I have some saturation values controlled by an expression,
however when they go too far they go into the negatives.
Is there an expression to stop values from going into the negatives?
Here is the current expression, it might be confusing out of
context but it basically means Add 1 to the value given by the
contrast and subtract by the factor
*Code:*
1+ControlPanel.Contrast-Factor
Again, values often go into the negatives which looks awful, how
do I prevent this?
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