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Post by Herman on Apr 10, 2016 21:30:32 GMT
Every once in a while, one comes across a problem that we can't seem to solve so the best thing to do is to ask others for help.
For some reason unknown to me I seem to have lost the contrail effect in both FS9 and FSX. I have checked both Effects folders and they both still contain the fx_contrail.fx file.
In the aircraft cfg there is an Effects section but it usually does not contain any mention of an fx_ contrail.fx line.
I always thought that the contrails were activated when the outside air temperature is below say -20*C. when flying at high atitudes, so I would imagine that there is a file or maybe even a gauge that performs that function??
Is there perhaps something else that activates the contrails??
Is it possible that the addition of third party aircraft could have deleted something. I seem to recall that the last aircraft I added was the TU-154.
Any suggestions will be appreciated.
Herman
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Post by walterleo on Apr 11, 2016 11:43:14 GMT
Hi Hermann:
If I rember well one can switch off and on the smoking effects in the FS9 Menue. So you can check first if in FS9 under the card "aircraft" the subcard "smokesystem" is on. In the aircraft cfg file the chapter SMOKESYSTEM should define for every engine the position and type of smoke. The corresponding file should be found in the EFFECTS folder of FS9. Sometimes it happens that flying high and at moderate powersettings you will not see a contrail. Some simulations as their real siblings dont smoke at all (e.g. one of the Tu 154s). The HJG CV 990A at take off power vomits black smoke in mass like the real thing. How that all is related to contrail I have to check but I have experienced often that contrail was visible and sometimes not, seems it depends on outside temperature, altitude and powersetting. There are also rumors that some shockwave addons may alter the smoke/contrail behaviour. As I have installed both Tu-154s I did not expierence of change of behaviour of my FS9. But as always it depends also how you start your FS session. Easily differnt settings of your FS can creep in.
Kind regards
Walter
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Post by Herman on Apr 11, 2016 19:02:37 GMT
OK....thank you Walter. Thank you for your suggestions. I'll have a look at FS Menu.
Herman
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Post by cgw444 on Apr 11, 2016 20:06:16 GMT
Strange ..... I seem to have lost my chemtrails...
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Post by aerofoto - HJG Admin on Apr 11, 2016 21:26:23 GMT
My understanding has always been that FS contrails (customised versions of these I mean) require/need to be supported by an EFFECTS file .... the data for which which needs to be edited into the EFFECTS section of any corresponding AIRCRAFT.CFG file .... and which then "auto-generate from around 27,000 FT.
These effects don't normally work at at altitudes less than 27,000 FT .... unless they are a customised effect which is "specially compiled" in order to be able to do so.
So far as I'm aware .... such effects files don't any require manual type activation like some some effects files do.
Mark C AKL/NZ
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Post by Herman on Apr 12, 2016 1:15:47 GMT
Interesting. Until a few days ago all was working OK ie. contrails formed automaticall, usually around 28-30000ft, and of course depending on OAT which needed to be below -20*C. AS you mentioned Mark, there are some models that use special settings and effects, and they would have a file, which required to be put into the Effects folder. Looking at the HJG DC-8's and 707"s Aircraft cfg's I don't even see an Effects section in the cfg, where as the DC-9 and B727 do have an Effects section in the aircraft cfg, and most other FS aircraft also have that section. But the fact remains, I always used to get contrails for the DC-8 and 707, so I am assuming that those effects are coded into the air file?? The strange thing is that my FSX setup has the same issue. Right now I am baffled by all this, but I am sure that there is an answer to this. Some sort of Gremlin has crept into my FS Herman
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Post by walterleo on Apr 12, 2016 8:09:59 GMT
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Post by Herman on Apr 12, 2016 14:52:09 GMT
Yes Walter.....that is exactly what I got after adding one of the TU-154's to FS9 and FSX.
I deleted that file (fx_contrail_I.fx) from the Effects folder, which rectified this crazy contrail feature. Since the other file (fx_contrail.fx) which is a file that was always there, was still in the Effects folder, I thought that all would be OK.
So yes...I guess I will need to go back to the FS 2004 disks to find the original file.
Herman
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Post by Herman on Apr 12, 2016 20:20:52 GMT
OK...Contrails are back . Apparently I inadvertantly deleted two files in the Effects folder that I thought were part of the TU-154 files I had uploaded before and were causing some strange Contrails. Once I replaced those files all worked OK. Herman
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