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Luma key on white in the mask (global) module

Posted: Wed Jan 10, 2007 11:49 am
by Jaime / www.starloops.net
Hello, there is 5 inks option in the module:
Normal,Dark Luma, exclusion, test and test 2.
But no White luma?
We would like to have a White luma avaible to create a mask to have black between multiple screen parts.
Image

I saw in the script:
elif param['selection'] == 'DARK LUMA' :
modul8.setValue ('direct_globalMask_surfaceBlend_Src','SRC_ALPHA',0)
modul8.setValue ('direct_globalMask_surfaceBlend_Dest','DST_COLOR',0)

Could you tell me how to Invert the Luma to make in this mask the white transparent ?
Image

Best
Jaime

PS : vous pouvez me repondre en Français

Posted: Wed Jan 10, 2007 12:47 pm
by boris
You can try to modify the module yourself, with differents combinaison of blending.
Test, test2 is here for that ...

Or more simple : make a picture with transparency ! (like psd or png)

Posted: Wed Jan 10, 2007 2:06 pm
by sigmasix
I already does someting like you try to do and I just add a transparent PNG file in my library and everything worked perfectly

Posted: Wed Jan 10, 2007 2:22 pm
by Jaime / www.starloops.net
Thanks!
psd with mask work fine!

Posted: Thu Mar 15, 2007 4:10 am
by spongemonkey
after playing around a bit I was able to make this work as a White Luma Key:

elif param['selection'] == 'WHITE LUMA' :
modul8.setValue ('direct_globalMask_surfaceBlend_Src','DST_COLOR',0)
modul8.setValue ('direct_globalMask_surfaceBlend_Dest','INV_SRC_ALPHA',0)

and then just make sure and add in WHITE LUMA to the "Init With:" string.