LibGDX antialiasing

Question

Is there a way to implement antialiasing in LibGDX?

My lines are very pixilated.

have you tried this link? http://www.badlogicgames.com/wordpress/?p=2071 — MDaniyal, Mar 13 '16 at 11:08
@Sebastian You can use the internet archive: https://web.archive.org/web/20200427101053/https://www.badlogicgames.com/wordpress/?p=2071 — ComanderKai77, Sep 01 '22 at 21:41

score 32 · Accepted Answer · edited Feb 23 '19 at 11:38

32

To smooth any line or shape use multi sampling anti aliasing

replace:
Gdx.gl.glclear()

with:
Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT | (Gdx.graphics.getBufferFormat().coverageSampling?GL20.GL_COVERAGE_BUFFER_BIT_NV:0))

and for Android, open AndroidLauncher.java file and put : config.numSamples = 2 2 is a good value

for desktopsconfig.samples=3 this will do your work...

edited Feb 23 '19 at 11:38

Zumbarlal Saindane

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answered Apr 16 '16 at 10:39

Ashwani

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@SamanMiran nope, see Manuel's downvoted answer below for better interpolation of textures. This is only fixes the edges of textures (which i advise you to leave transparent whenever possible) – Riki137 Aug 19 '20 at 09:57
1

If you're using Lwjgl3ApplicationConfiguration, then you won't be able to access the samples field. Instead do "config.setBackBufferConfig(8,8,8,8,16,0,num_of_samples);". These values are the defaults - only set the last parameter which is the samples value. – Gad Wissberg Mar 30 '22 at 20:47

score 3 · Answer 2 · answered Oct 29 '16 at 13:42

3

You can also put the filter in the texture itself

bg = new TextureRegion(new Texture(
            Gdx.files.internal("data/bg.png")));
//bg.getTexture().setFilter(GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR);
bg.getTexture().setFilter(TextureFilter.Linear, TextureFilter.Linear);

answered Oct 29 '16 at 13:42

Manuel Mejias

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That is not the same thing as Anti aliasing plus he is not even using textures. – Winter Jan 12 '17 at 02:55

Sebastian · Answer 3 · 2022-09-02T06:13:13.980

2

Set the number of samples in your Lwjgl3ApplicationConfiguration. It defaults to 0, try something higher:

final Lwjgl3ApplicationConfiguration config = new Lwjgl3ApplicationConfiguration();
int samples = 2; // you can also play around with hiher values like 4
config.setBackBufferConfig(8, 8, 8, 8, 16, 0, samples); // 8, 8, 8, 8, 16, 0 are default values

edited Sep 02 '22 at 06:13

answered Sep 01 '22 at 20:00

Sebastian

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LibGDX antialiasing

3 Answers3