[help] PLSM2 performance under windows

Hi.

Does anyone know about any performance issues of PLSM2 running under Windows XP?

I've been developing an application in Gentoo and the frame rate is acceptable, but when i ran it in Windows i got a bluescreen using OpenGL.:S Using DirectX, it worked, but the frame rate went to about 1/5 (or lower) than what i got in Gentoo.

The PC running Windows has a "maybe not so reliable" Intel graphics card, but i already ran my application on another Windows machine and the problem was still there....

So, my next step was to run the PagingLandScape2 Demo on both Gentoo and Window. I didn't get the blue screen in OpenGL, but the performance issues where still there...

In Gentoo:
~600 fps. Seeing the whole terrain from far.
~380 fps. Sitting on the surface, looking around.

In Windows:
~120 fps. Seeing the whole terrain from far.
~50 fps. Sitting on terrain surface, looking down.

I'm using the same configuration on both cases.

cfg:

GroupName=PLSM2

Width=1
Height=1
TextureStretchFactor=4

LandScapeFileName=hf129_3
FileSystem=LandScapeFileName

NumTextureFormatSupported=1
TextureFormatSupported0=Base
TextureFormat=Base

PageSize=129
TileSize=65

ScaleX=15000
ScaleY=2000
ScaleZ=15000

LodMorphStart=0.2
MaxRenderLevel=7
MaxPixelError=6
Data2DFormat=HeightField

NumMatHeightSplat=4
SplatFilename0=splatting_sand.png
SplatFilename1=splatting_grass.png
SplatFilename2=splatting_rock.png
SplatFilename3=splatting_snow.png

# where to put camera on load.
BaseCameraViewpoint.x=0.0f
BaseCameraViewpoint.y=10000.0f
BaseCameraViewpoint.z=0.0f

Baselookat.x=0.0f
Baselookat.y=0.0f
Baselookat.z=0.0f


I've tried with other TextureFormats and the result is basically the same...

Any help is welcome,
jguerra

It runs fine for me using Windows XP with Geforce8 GTS, except about the bugs I have described here:
http://www.ogre3d.org/phpBB2addons/viewtopic.php?t=7228 do you have any similar issues?

Which PLSM/Ogre version are you using?

Thanks for the reply. I'm running PLSM from CVS and Ogre 1.4.7.
I've downloaded the prebuilt windows demo (i know that it is probably outdated) from tuan kuranes site and i got a small improvement.

Using the same .cfg, i now have twice as many fps. It goes around these values:
~200 fps. Seeing the whole terrain from far.
~110 fps. Sitting on the surface, looking around.

So, I'm guessing it's probably some compile option, or something similar.


Sorry, but i don't have any clue about you're issue.... :S

Does ogre CVS still exist? I download my version from Subversion, don't know if it's most recent one or not.
That version from tuan's site seems pretty outdated.

I guess it doesn't exist anymore, but i downloaded the PLSM again recently from the 'new' SVN.
As for Ogre, I'm still using 1.4.7. But i don't think the problem is related to it.

That version from tuan's site seems pretty outdated.
Yes it does. But I decided to give it a shot, just to see if there where any frame rate changes.