Predicting levels and level image sizes for makemultires

Hans did a lot of testing with this. I like what he found. Use a tiles size of 512 px and 3 levels with a 2 for level step. Then they will work on Iphones, pads and driods.

Hi,

that's a bit more complicated,
the tilesize isn't calculated by a simple formula,

the resulting tilesize is a result of a kind of optimizer process that tries to find a good tilesize for
all levels, where the size of the tiles don't become too small (e.g. to a void tiles like 1x512)
and where the level image is symmetric splittable by the tilesize without too much splits (good for
flash rendering performance),

and then as second step the number of automatic levels depends on the found tilesize,

best regards,
Klaus

OK, i make panoramic with a width about 12000px

krpano make 3 level cube : w/pi, w/2pi and w/4pi

but sometime tilesize is 2w/8pi, sometime is 2w/11pi (2x more tiles)

Why ? how predicting that ?

we can choose fix or auto size in .config tool but can we choose a w/4pi tilesize ?

can you explain how the tilesize is calculate ?

Hi,

the first step is the spherical to cubical conversion and krpano uses here this calculation:

cubewidth = spherewidth / PI

then the resulting cubewidth size will be stepwise scaled down by the levelstep setting,
and this as long as the minsize setting will be reached,

in the new version there is also the adjustlevelsizes setting, which can affect the level size,

if you want to 'predict' all sizes, you should use manual values for the 'auto' settings and disable the adjustlevelsizes setting,

best regards,
Klaus