Issues using PLSM2 in a arcadish FlyingSim case [SOLVED]

ahmedali

29-07-2006 10:35:12

I just started using PLSM2 last week. In want to create "illusion" of large landscape without using "excess polys". What I found lacking in PLSM2 is to control the the maximum level of tesellation per tile/page. "The only way I found to implicitly control this is to control the sizes of higth-map & page."

In an ordinary arcadish flying sim most of the terrain is flat and only visible elevated stuff are like mountains, sear shores etc. So I want to have tesselation to the lowest where ground is flat.

I did an experiment on it (by using a blank terrain with some mountain objects) but here are some problems.



If the ground is totally flat, why is this glitch happening? Why it is tottaly tesselated.

-Also can you suggest how to control max level of polys per tile/page.-
I'm using 5 render levels, how can I control the options to have lowest detail of render level for flat ground ?

Tech Info:
PLSM2 from taun's site
GF4mx440 64mb OGL
512 ram

tuan kuranes

31-07-2006 13:30:46

Render level is choosed based on complexity of tile and camera distance.
Tesselation should be "automatically" applied on flat terrain.

If the ground is totally flat, why is this glitch happening? Why it is tottaly tesselated
I'm wondering if you have the same result when erasing the .info.cfg file related to the .cfg file you're using.
(it's a per map cache that cache tile complexity computation once and for all instead of computing it each time. But if you change map content, but not erasing the cache...)

If it doesn't fix please make the map available to me (.png .cfg .gen.cfg) so I can understand what is happening.

Also can you suggest how to control max level of polys per tile/page.I'm using 5 render levels, how can I control the options to have lowest detail of render level for flat ground ?
It's really entirely automatic... perhaps we could propose multiple scheme lod to user... have to change plsm2 internals for that.

All you can do now is to tweak "DistanceLOD" config variable or using the setOption scene manager mechanism
OR using the per camera lod tweaking, but that would affect entire scene, not only landscape.

ahmedali

07-08-2006 09:27:31

You are probably right about the .info reason, it Solved It. Thanks.