Frame rate increase suggestion.

Martyn wrote: SP3 includes a new HSI which should address the performance issues: http://www.justflight.com/support/dc-8-jetliner/16e1f5d

What about the 50-70 series? The patch mentioned above is not for it.

Thanks for the update Joeflyer. Bob

Any update on the low FPS while banking or turning while taxing on the ground? Until there is a fix all my versions of the DC-8 sit in the hanger, other than the series 70, because this issue only effects the non-glass cockpit versions. Thanks Bob

Hey Rich, those are wonderful news! Really good to know that this problem is being sorted out.

For what it's worth, and I didn't read the whole thread so forgive me if it was already mentioned...

Joeflyer,
This is the way I disabled the HSI via panel.cfg:

[Vcockpit13]
Background_color=0,0,0
size_mm=1024,1024
visible=1
pixel_size=1024,1024
texture=$AH_NAV

//gauge00=JFDC8!EHSI,  158,193,710,694 <----- just added the "//" to disable the line


Now I just disabled the VC simply by going to model.cfg and:

[models]
normal=JF_DC8-53_exterior
//interior=JF_DC-8-50VC_interior <----- added again the "//"

And the VC is gone.

So, I can now confirm in my case that the frames while turning and banking are high as they should be. Again, in my case the problem is related to something in the VC (not the textures or smoke), it could be the HSI, ADI or some gauge related to heading, pitch or bank (something complex enough to do this fps drop). I looked the plane even from spot and everything is ok with the frames.

I'll issue a support ticket. If Scotty could look at our latest posts, that would be great.

Alex

Hi Joeflyer,
Thanks for the suggestion, in fact I already did that time ago with the series 10 to 40 with no solution for my case, I'm not saying they didn't try to help me but there was no fps improvement even with the two service packs, the texture quality change and disabling all smoke effects.

Probably I'll try with the support ticket again, focusing in the big moving 3d gauges that I also think may be the problem. Hey as I write this I got an idea! I'll remove the VC association of this plane in the model.cfg, I'm not in my simulator PC so I'll test that out later and post again any results.
Alex

Hi Joeflyer,
I already did that before this post with no luck and even went further disabling both HSI and ADI (in panel.cfg, virtual cockpit sections) with no luck, I'm surprised that you got lucky with that modification you made. Perhaps something else is needed in my end...

About series 70 I'm not sure exactly how much fps drop I get, I'm gessing half than the other series (10 to 60). So if in straight and level flight I get about 30 fps, turning and/or banking maybe I get about 20 - 22 fps in the 70, and the rest of the series about 12 - 16 fps and that is horrible.

Anyway I want to test a little more with the instruments, If you know or discover something else, please let me know.
Thanks,
Alex

Joeflyer wrote: Folks, just as a FYI....a BIG thank you goes to Scotty (Alex) for directing me through various troubleshooting methods in order to pin-point the possible culprit to the low frame rates during turns while on the ground and in the air. What I have been able to find is that the HSI is the culprit. More news to follow!

Yes! I knew it! Please tell us as soon as you know how to at least mitigate that fps drop.
Thanks,
Alex

PD: Also found that in the series 70 the problem is less noticeable due to the modern glass HSI.

I'm having the same problem with FPS, while turning on the ground or banking while flying. Makes the aircraft unusable for me. What a shame, the DC-8 has always been one of my best loved aircraft.

Also whatever is causing the FPS drop is not being fixed by Fiber Accelerator.

Bob