Height maps

[Pfaber11]

I have been using height maps for quite a while but have never taken much notice of the parameter at the end split which I leave at 0 . What I was wanting to know is if I set it to say 4 which would set it to 4x4 would it make my terrain 16 times bigger.? 

[blinkok]

No, it will split it into 16 meshes. Presumably making it faster for collision and GetObjectHeightMapHeight()
I guess it's a bit like making it tile based internally

[Pfaber11]

oh right I'll have a play with it and see what I think . thanks for the answer.

[Pfaber11]

Good evening . I have tried to use the split in the height map code but It doesn't seem to do anything at all . Here's what I've tried .

Code Select Expand

CreateObjectFromHeightMap(10,"paul21.png" ,1024,40,1024,2,5)
I thought it might give me a denser terrain but appears to do nothing . Has it got a purpose?
Thanks for reading .

[blinkok]

As i said before. It splits the object into multiple meshes.
You can use GetObjectNumMeshes() to determine the number of meshes in an object.
I am not 100% sure but i think it helps in culling (Only processing the visible meshes), GetObjectHeightMapHeight() and collision.

[Pfaber11]

Done a bit of experimenting and setting it to 4 on a 1024x1024 height map and I get an increase by 5 or 10 fps compared to setting it to 1 . If I set it to 20 then it slows it down by about 20fps . Anyway will be setting it to 4 on this size of terrain as that seems to work best . Thanks for the info blinkok .