Function: computeFeatureLodOffset()
computeFeatureLodOffset(
textureResolution,baseResolution):number
Extra mips covered by G0 before advancing through the feature pyramid. Table 1: texture 1024 / grid 256 gives offset 2, hence the first band is [0,1,2,3], followed by [4,5], [6,7], and the final open-ended band.
Parameters
textureResolution
number
baseResolution
number
Returns
number