On custom shaders and building OpenGL ES 2.0 apps on top of Sparrow

hcabral

Hey all,

Maybe this is an open-ended question, or too broad, anyway, I'm not experienced in OpenGL, I do have some knowledge of it due to my school days. Since the SparrowVC is an actual GLKVC, I was wondering how we can easily use custom shaders to expand Sparrow possibilities. Two applications come to my mind, one that I saw recently usen openFrameworks:

http://www.creativeapplications.net/openframeworks/painting-with-watercolours-using-openframeworks-fbo-kenichi-yoneda-kynd/

And another one is probably known by you, the ripples camera app from Apple samples.

Could you guys point out somewhere to start?

Cheers!

Daniel

Sorry for the extreme delay, I was on a vacation for the last two weeks.

Custom shaders will probably be added in the future -- that functionality is already available in Starling. It allows you to create "FragmentFilter" objects that you can use to process any object using a fragment shader.

Enter the "Filters" scene in the Starling demo to see some simple effects that can be achieved like that:

http://gamua.com/starling/demo/

So, if Sparrow is not abandoned by its users due to SpriteKit, this will definitely be added some day. =)