It has taken a while for me to figure out how to use the wonderful texturing feature and i thought i would try to explain how I think it works:
Terrain texturing in plain English:
The top 4 textures are the ones that are used when you select "none" for terrain detail in display preferences. The size of these textures should be 256x256. The Bottom 4 textures are the ones that are used when you select "some" or "full" for terrain detail in display preferences. The size of these textures should be 512x512.
All 4 textures that you use appear over the entire sim. You can adjust the level at which each texture will appear in each quadrant of the sim. The numbers with up and down arrows below the textures control the heights per quadrant.
The first number, start height, is the terrain height where you start seeing texture 1 (furthest left.) The second number, height range, is how high the land has to rise before you get to the last texture. You cant use different textures in each quadrant but you can change the height at which each texture will appear in each corner of your sim.
Starting from the left, the numbers correspond to the sim quandrants as follows:
NW NE SW SE
So adjusting the numbers for each quadrant lets us have rock on the beach level in one quadrant and sand on a high hill in different quadrant.
Also, I got a copy of the snow textures from Ryan Linden which I am sure he will not mind my sharing with other island sim owners. Please IM me inworld if you want a copy.
Water Height
Concerning the water height, this adjusts the land height at which we will hit water when we lower sim land. I noticed that I had to relog before the setting takes effect.
Sun Phase
For some reason my sun/night phase is not cycling and its always daylight for me (no i do not have the setting on fixed sun.) Anyone else having this problem?