Question about Shaders

[ParaToxic]

Hey I have a question. I would like to learn more about shaders and would like to write some surface shaders. Now I see the shader framework works with FragData[0,1,2] and not only with FragColor like in the Post processing part.

 

But what is done with this FragData data ?? I see some stuff like the diffuse and normal data is stored in Fragdata[0] , specular and gloss in FragData[1] and I think this is something what is seperated for the lighting part of the framework.

 

But what exactly is done with the FragData ???

Thanks

[shadmar]

From what I understand they are used for

diffuse, normal, specular, glow (0-3).

 

Josh paper on LE renderer :

http://www.leadwerks.com/files/Deferred_Rendering_in_Leadwerks_Engine.pdf

[ParaToxic]

ahh okey thanks shadmar , your the expert here