[Synfig-devl] Luma Key Layer

[Yu Chen]

Hi,

I am working on a icon font, and found it is very difficult to figure out a
glyph for  Luma Key layer, one of the reasons is that I have no idea what
Luma Key Layer does, but when I search on wiki, things are getting worse.

http://wiki.synfig.org/Layers#Luma_Key shows three parameters:

Color: Color of checkers
Offset:
Size: Size of checkers

but in Synfig Studio there is different 3 parameters, shows in
http://wiki.synfig.org/Luma_Key_Layer :

Z Depth
Amount
Blend Method


I guess we renamed these tree parameters in a release.

Can anyone who knows/uses Luma Key Layer? Any help is much appreciated.


Cheers!

~ yu
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Re: [Synfig-devl] Luma Key Layer

[Konstantin Dmitriev]

Hello Yu!

2016-01-05 14:43 GMT+06:00 Yu Chen :
> I am working on a icon font, and found it is very difficult to figure out a
> glyph for  Luma Key layer, one of the reasons is that I have no idea what
> Luma Key Layer does, but when I search on wiki, things are getting worse.
>
> http://wiki.synfig.org/Layers#Luma_Key shows three parameters:
>
> Color: Color of checkers
> Offset:
> Size: Size of checkers
>
> but in Synfig Studio there is different 3 parameters, shows in
> http://wiki.synfig.org/Luma_Key_Layer :
>
> Z Depth
> Amount
> Blend Method
>
>
> I guess we renamed these tree parameters in a release.
>
> Can anyone who knows/uses Luma Key Layer? Any help is much appreciated.

Wiki page http://wiki.synfig.org/Layers#Luma_Key is wrong.

The Luma Key layer does the following:
For every pixel of image it assigns the alpha value, based on its Luminosity.
For example, black pixels become 100% transparent. White pixels are
absolutely opaque. Gray pixels are semi-transparent.

Best Regards,
K

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