aniso level 9 with Mip Maps VS aniso level 1 without Mip Map

Performance considerations when treating terrain textures (sorry for the big images).

New to Unity3D but been done some testes to see the effects of some changes of texture parameters into “fds” and “in game image quality”.

The specifications:

  • (my trustful and old :roll:) Mobility Radeon 9700
  • Terrain (2 with the same specifications):
    --------- width: 45
    --------- Height: 3
    --------- Length: 45
    --------- Heightmap resolution: 513
    --------- Detail Resolution: 2048
  • Terrains main textures:
    --------- 2048 x 2048 pixels
    --------- Texture format (unity): Compressed DXT1)


Aniso level: 9
Filter mode: Trilinear
Generate Mip Maps: selected
Considerations: frame rate: 54fps, good detail level in far regions


Aniso level: 1
Filter mode: Bilinear
Generate Mip Maps: unselected
Considerations: frame rate: 60fps, crisper detail level in far regions

For my particular case, disabling the Mip map generation seems to produce crisper images and at the same time generates higher frames per second.

Any comments about these?
Thanks in advance!

Generally turning off mip maps is a bad idea, but if it looks better to you and the performance is acceptable then go for it.

Textures without mipmaps usually look awful when moving. If your camera doesn’t move, then that’s OK. You’re getting higher fps because the aniso level is much lower, not because of turning off mipmaps…turning off mipmaps decreases fps; it would seem that turning off AF is more beneficial than enabling mipmaps.

–Eric

Especially the distant area is not crisper from what I see. its pixalated, which is exactly what you get from disabling mipmaps. The road part most away from the camera shows it at the border closer to the cam.

all in all you must have a pretty weak gpu if this scene caused it at all to go down to anything below a few hundred fps … at least unless the models we see there use totally unreasonable amounts of geometry

Well I know increasing aniso level and turning off mip maps both decreases fps. I’m just pointing that sometimes it’s possible to get “better” results turning off mip maps rather than increasing anisotropic level.
Mip maps on and aniso level to 1 will give me about 70 fps (it just looks awful in the distance areas).

I have some amount of geometry (all around the track the terrain is raised), it just seems flat because the lighting is vertical and very bright.
Yes, as I pointed out in my first post, my GPU is a Mobility Radeon 9700 - 64M (6 yeas old). Very weak for current standards, but if I can squeeze some fps from this card it’ll just run smooth in about any other GPU on the market.

Thanks for your feedback!

increase ansio level can not work on android and ios???