Hello Everyone,

I have a need of a very wide range of fovs supported by my world camera, from 0.02(~1.14º) radians to 0.785(~45º)

The thing is, when I am applying a between 30º and 45º to even more, all goes quite well, but when I go down 30º, my textures begin distorting so hard, exponentially when i go lower on degrees, and it reaches to apply mipfilter almost for everything.

I dont understand why is happening this terrible behaviour or if there is any way of fixing different of change my camera behaviour because it should cost me to spend a lot of time, so any help should be appreciated.

The attached images are both from the same point of view and it only changes the fov.

I will always apologize for my insulting bad english.

Cheers

mmm, do you think it will it decrease so much the overal perfomance of the shader?

It helps a bit, but not always, it can be antiproductive that (D3DSAMP_MAXANISOTROPY) parameter...and doesnt solve the problem completely...

It will likely decrease performance, as any more expensive texture filtering operation does. But the "so much" can only be answered by profiling

Edit:

It helps a bit, but not always, it can be antiproductive that (D3DSAMP_MAXANISOTROPY) parameter...and doesnt solve the problem completely...

I'm not surprised. The farther away you look the more the horziontal and vertical derivatives diverge (the angle gets more grazing). There's only so much the hardware filtering can do about that. One could of course apply custom filtering manually. But that would cost even more performance.

Thank you so much unbird, this has helped me a lot, never saw that strange things haha I have always fixed this problems with normal linear filters...

Regards :)