OpenGL Direct X OpenGL Direct X What?

[pfx]

Sorry about the ambiguous title. Just wondered if anyone was experiencing the same sort of issue as me when it comes to having to switch between OpenGL and DirectX? This has affected me using a nVidia 9600GT and a GTS450 o/c edition.

I'm working on a large route (3500+ boards) at present and have endless issues, partly I'm guessing, because of the route size, in saving progress. I've found that DirectX causes most issues here and the only work around seems to be to work using OpenGL. I still don't get 100% success but it's much better.

Now the interesting thing is if I switch to Driver running OpenGL, I get a shocking frame rate, typically 4-8FPS externally and 10-12FPS in cab view, which renders Trainz unplayable. I decided to try switching back to DirectX and on starting Driver, had 30-40FPS externally and 45-60FPS in cab view which is cracking given how scenery heavy the route is.

Trainz likes me to jump through hoops it seems, to have an enjoyable experience!

 

[boleyd]

DirectX with nVidia video cards seems to be the most popular choice. I see the same big FPS drop with OpenGL. Of course the usual suggestion about the latest driver software.

 

[beep55]

I have an Nvidea G card but with DirectX It ALWAYS crashes within 10minutes.

I use open GL and I find once I get into towns or heavy content areas... it just slows down loads.

I'm using Trainz Classics 3. I should probably upgrade to 2009 or 2010

 

[sniper297]

2009, 2010, 12, all three run marginally better in OpenGL than DirectX on my 8500GT regardless what settings I tweak;

http://www.tweakguides.com/NVFORCE_6.html

Biggest difference is in routes with speedtrees, DirectX gives me a "rubber band" effect when moving, altho OpenGL doesn't add much in the way of FPS numbers it does cut down on the rubber banding. What "rubber banding" is, is hard to describe for those who haven't seen it, unlike stuttering or jerking or slideshow it's more of a constant slow stretch - snap! slow stretch - snap! slow stretch - snap! effect in the animation.

 

[Deano5]

sniper@~<?.
You need to increase your virtual memory size. Solves many a jerky problem. Don't knock it til you try it son. I have had to do this with all my comps that use Trainz and it just cuts them rubber bands to bits. :wave:

 

[bl4882]

Deano5,

How much virtual memory would you suggest?

Bernie

 

[sniper297]

2 gigs of physical RAM, page file was fixed size 4096, worked well for most games until Trainz TS2010 came along. Since then I've tried 1024, 2048, system managed size, you name it. Trainz never goes over 650mb physical RAM or 1.3gb virtual regardless of how I have it set.

 

[Deano5]

Deano5,

How much virtual memory would you suggest?

Bernie

Just add 1024 to the figure set by windows. I used to get a little message behind Trainz telling me my VM was low so I upped it a little and Windows was happy then. That was with XP but I upped it in Windows7 too as it looked too small to start with. It does not hurt or cost anything and you can't break anything but it certainly helps Trainz and Windows to run at the same time. :wave: