Do we always average by a power of 2 scale? Are there cases where we want the scale to be non logarithmic?
keenan
@evanw I have never seen anything but logarithmic, via a factor 2. I suppose you could decrease the MIP maps at an asymptotically slower rate but (i) you now have to store way more data, and (ii) it's not clear this buys you much from a prefiltering point of view (vs. trilinear filtering of logarithmic MIP maps).
Do we always average by a power of 2 scale? Are there cases where we want the scale to be non logarithmic?
@evanw I have never seen anything but logarithmic, via a factor 2. I suppose you could decrease the MIP maps at an asymptotically slower rate but (i) you now have to store way more data, and (ii) it's not clear this buys you much from a prefiltering point of view (vs. trilinear filtering of logarithmic MIP maps).