Simulate Photoshop Blending Modes

(3 posts) (2 voices)

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sunshineDev
Member

Hi everyone. Is there any way I can simulate what would be a Photoshop Screen Blending mode in coco2d?

I used this post as an example:
http://www.cocos2d-iphone.org/forum/topic/815

Adding this to my sprite:
[sprite setBlendFunc: (ccBlendFunc) { GL_SRC_ALPHA, GL_ONE }];

It's almost there but not quite. Any information would be greatly appreciated.

Thanks in advance as usual!

Posted 2 years ago #
Lam
Member

I think screen is (GL_ONE, GL_ONE_MINUS_SRC_COLOR).
But if you've heard of premultiplied alpha png issues. It really affects the blend funcs =/

Posted 2 years ago #
sunshineDev
Member

Hi Lam,

Thanks so much. It works really well, although the blend is a bit brighter than what it looks like in Photoshop.

I've read about using PVR files but I had never heard of this format. I can't find much on how to generate them in Photoshop.

Thanks again for all your help.

Posted 2 years ago #

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