how to apply graphic filters to rendered image in OpenGL?

Newbie & Debugging Questions
#1

Hi all,

I am wondering, what is the best (most performative and good results) way to apply some basic graphic manipulations like Brightness, Contrast, Noise etc. to a rendered image in OpenGL?

Thanks!

#2

Using GLSL (shaders).
GLSL can do this faster and nicer then Java2D

#3

See here:

#4

Thank you!

#5

I’m guessing from your name you watch Grimm?

#6

Sorry, I have not watched it yet, so any reference must be unintentional :smiley:

#7

On that note @deepthought, I’ve always wondered whether your name is actually a reference to Douglas Adam’s Hitchhiker’s Guide…?

#8

Probably the name is from the famous computer that could play chess very well?

Deep thought & deep thought blue

#9

Well I was wondering whether it was from that or from Hitchhiker’s.

#10

Hitchhiker’s guide, yes.