Is it possible to animate tweak?

[Floatingshed]

What I want to achieve is a gradual increase in brightness over a range of frames.
e.g. Frame0: bright=0, frame60: bright=20

I really don't understand animate, I find the documentation confusing and I'm not even certain that it is the filter to use for this. Please someone point me in the right direction. Thanks.

[Didée]

# Animate Tweak() from frame 100 to 200

someclip
Animate( 100, 200, "Tweak", 0.0,1.0,0.0, 0.0,1.0,20.0 )
# ----------- ============
# start params end params

[Floatingshed]

# Animate Tweak() from frame 100 to 200

someclip
Animate( 100, 200, "Tweak", 0.0,1.0,0.0, 0.0,1.0,20.0 )
# ----------- ============
# start params end params



Yes, that works fine, thanks.
Is it possible to use the tweak named arguments in this situation?

[Umamio]

Yes, that works fine, thanks.
Is it possible to use the tweak named arguments in this situation?

Create your own custom function first that passes named arguments to tweak.

Like so:

function mySpecialTweak(clip c, float var1, float var2, float var3, float namedVarValue1, float namedVarValue2)
{
return c.Tweak(var1,var2,var3,varName1 = namedVarValue1, varName2 = namedVarValue2)
}

Animate( 100, 200, "mySpecialTweak", 0.0,1.0,0.0,0.0,0.0 0.0,1.0,20.0,5.0,10.0 )


or if you want to pass a named var value that doesn't animate (in this example a boolean, but could be a number or string):

function mySpecialTweak(clip c, float var1, float var2, float var3)
{
someBooleanVar = TRUE # or False
return c.Tweak(var1,var2,var3,BoolVarName = someBooleanVar )
}

Animate( 100, 200, "mySpecialTweak", 0.0,1.0,0.0,0.0,1.0,20.0)

[sonu patel]

Create your own custom function first that passes named arguments to tweak.

Like so:

function mySpecialTweak(clip c, float var1, float var2, float var3, float namedVarValue1, float namedVarValue2)
{
return c.Tweak(var1,var2,var3,varName1 = namedVarValue1, varName2 = namedVarValue2)
}

Animate( 100, 200, "mySpecialTweak", 0.0,1.0,0.0,0.0,0.0 0.0,1.0,20.0,5.0,10.0 )


or if you want to pass a named var value that doesn't animate (in this example a boolean, but could be a number or string):

function mySpecialTweak(clip c, float var1, float var2, float var3)
{
someBooleanVar = TRUE # or False
return c.Tweak(var1,var2,var3,BoolVarName = someBooleanVar )
}

Animate( 100, 200, "mySpecialTweak", 0.0,1.0,0.0,0.0,1.0,20.0)


CAN U PLZ EXPALIN IT IN DETAILS TO GET BEST COLOUR SETTING TO A SOURCE AND GET BEST RESULT ..........:thanks:

[Umamio]

I don't often use Tweak, and it's impossible to say what is best for all sources (and you would need to post a video / image sample to receive any suggestions for your specific video) but this thread (http://forum.doom9.org/showthread.php?t=121410) might help you find the right filter/settings for your needs.

There is also an excellent list of avisynth filters (http://avisynth.org/mediawiki/External_filters#Levels_and_Chroma) that deal with chroma. Some, like autolevels, have automagic settings.