question about TileSize in virtual texture

[cyf]

If i add a high level of graphics in virtual texture,do i need to change the value of TileSize in the ctx file ???

[selden]

Not necessarily.

Celestia uses the tile size specified in the ctx file to decide when to switch between the different directory levels, i.e. when to draw the larger or smaller tiles. It doesn't have to correspond to the actual resolutions of the images.