DirectX Mobile (and Intel 2700G)

[Matt Jack]

Hello,

Have anyone experienced programming Managed DirectX with Windows Mobile 5?
I am developing an app for Del X51v (with Intel 2700G), which is supposed to
be 3D hardware accelerated.

My problem : I get very few FPS. Intel claims that the 2700G chipset is able
to display 1 million triangles per second, but I don't even get 1% of this!

Meanwhile, there are good demos working very well on this device, but
written (I guess) in OpenGL.

All this make me wonder if DirectX Mobile is able to use any hardware
acceleration?
Maybe are there specific DirectX drivers for 2700G? Have anyone heard of
this?

In advance, thanks
-Mathieu

 

[Joseph Byrns]

Didn't 2005 come with some Managed DX examples, have you tried these?

Also have you read the articles by Casey Chesnut:
an intro article is here:
http://www.brains-N-brawn.com/cfMDX/
a partial port of WorldWind is here:
http://www.brains-N-brawn.com/cfWorldWind/

Please let me know how well you get it performing, I am also interested in
this.

 

[Matt Jack]

I have tried the billboard sample : it's working well, but with "poor"
performance (about 5-6 fps)

I do know the Cfworldwind project, but did not try it at this time.
I'm almost sure there will be the same problem, because I am using the same
initializations... (I should test it anyway)

I have already asked Casey about all this, but he told me that at this time
he was runnning cfWorldWind on a old pocket PC with 3D emulated.

-Mathieu

 

[vance]

I've got the billboard sample running on a Dell Axim x51v. Framerate
is good, but I'm getting some rendering artifacts (flashing polygons
with what look like stretched UVs). All of the other demos I've tried
work well.

I did notice that I get decreased performance in the form of heavy
stuttering if I have the unit docked while running the demos.

Also, it appears that the X51v is locked, I can't deploy directly to
the device. Hopefully Dell will offer developers a work around for
this.

-Vance