How do I use antialiasing programmatically in OpenGl ES Xcode?

Question

So the title pretty much says it already, I use the OpenGl ES template in Xcode to create a game. I use triangles for my code.

So what I want is basically the same like here, just for iOS instead of Android.

Can anyone help me please?

Read Microsoft document about AA http://research.microsoft.com/en-us/um/people/hoppe/overdraw.pdf — Valar Morghulis, Dec 14 '14 at 09:48
@ValarMorghulis well this explains the way it works but does not tell me how to do it — LinusGeffarth, Dec 14 '14 at 09:52
http://stackoverflow.com/questions/1813035/opengl-es-iphone-drawing-anti-aliased-lines look at this. I hope will help you. — Valar Morghulis, Dec 14 '14 at 09:54

score 2 · Accepted Answer · answered Dec 14 '14 at 18:10

2

While initializing the GLKView, call this to enable 4x MSAA, with view being your GLKView instance:

[view setDrawableMultisample: GLKViewDrawableMultisample4X];

answered Dec 14 '14 at 18:10

Reto Koradi

Great! But it really tears down the fps in large files, is there a way to prevent the frame drop? – LinusGeffarth Dec 14 '14 at 18:21
How much is the performance loss in your case? It really shouldn't be that much, particularly on newer GPUs. – Reto Koradi Dec 14 '14 at 18:28
So on a huge file (1,9000,000 objects in array, while 6 objects are 1 point) it is 15fps with aa. But I just double-checked, without it it is 16fps. So this is apparently not the problem. Probably just the size – LinusGeffarth Dec 14 '14 at 18:31
oh and one more thing, do you know a way to increase the aa? – LinusGeffarth Dec 20 '14 at 19:15

1 Answers1