FOSS gamedev and creative worlds

In Settings tab there is group of settings related to graphics.

There are three drop-down lists:

• Texturing:
  
  • No Filter
  • Bilinear Filter
  • Trilinear Filter
  • No Mipmap
  • Mipmap
  • Mapmap + Aniso. Filter
• Antialiasing:
  
  • None
  • 2x
  • 4x
  • 8x

I understand that mipmap is used when there is no need to put fullsize texture on far objects. Thus, more video memory is used (for multiple scales of each texture) but there is gain in performance, more FPS.

About other settings I don't know much.

So, could you tell me, please, in details what all these settings for?

Thank you.

No Filter
Bilinear Filter
Trilinear Filter

This one is about adding some "effect" to the textures in-game, it takes performance and there is no gain of performance as far i know. It makes the sharp pixel texture looks smooth, this "effect" looks better with +126 Pixels textures, or bigger ones to simplify.
-Bilinear Filter https://en.wikipedia.org/wiki/Bilinear_filtering
-Trilinear Filter https://en.wikipedia.org/wiki/Trilinear_filtering

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No Mipmap
Mipmap
Mapmap + Aniso. Filter

This is about shaders, you already know about what mipmap does. Are justly some filters about the rendering in-game.
Anisotropic Filtering https://en.wikipedia.org/wiki/Anisotropic_filtering


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Antialiasing:

None
2x
4x
8x

This one works for adjusting the "Antiasling" This is an effect that smooths the rendered image so it doesn't look so "pixelated" or sharp. If the value is higher, the performance will be low, but the quality of the in-game graphics better. Adjust by testing and knowing which one is better for you
Antiasling https://en.wikipedia.org/wiki/Spatial_anti-aliasing

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Hope this helped you, if you have any question don't mind to ask ;)