From the magic hat!

[Kali]

I'll keep looking anyway - it's not like there aren't half a dozen different variations as it is!

Please tell me the cabs weren't really this colour: http://www.railpictures.net/viewphoto.p ... 977&nseq=3

[thecanadianrail]

no, that is the wrong shade of green for EMD, it should be a lighter more blue like colour...although i am not shure if the gp9's ever got the green cab???

[philmoberg]

... Please tell me the cabs weren't really this colour: ...

It's been a long time, to be sure, but I remember 4926's cab being a light-to-medium grey inside. I can't say I've ever seen a green like that inside a diesel cab.

[Kali]

Well that's a relief. It can stay default unless something turns up that's drastically different.

Next question: the cylinders on the roof I presume are some sort of silencer/spark arrestors? anyone know how many exhaust exits there are from those?

[MadMike1024]

Well that's a relief. It can stay default unless something turns up that's drastically different.

Next question: the cylinders on the roof I presume are some sort of silencer/spark arrestors? anyone know how many exhaust exits there are from those?

Two. Here's a set mounted long ways.

I believe these to be "Spark Sentry" spark arrestors, jointly developed by Standard Oil Company and Southern Pacific. Open to discussion. What is undeniable is that exhaust gasses spin in a uniform cyclonic manner within the horizontal manifolds, where they rotate until they burn out or disintegrate. And they are ugly!

- from the Oil-Electric website.

[Griphos]

This is all looking fantastic to me. I'm so impressed with you guys' ability to do this and create such wonderful models for the sim with such fidelity.

[Kali]

The GP9 ones didn't have vertical stacks, it seems ( which makes life marginally easier anyway ).



Seems about the right size, just needs better texturing and the emitters moved.

To paint the trucks I had to make a "virtual" default GP9, and something from somewhere else... this was obviously Derek's period of confusing texture paths.

[philmoberg]

The GP9 ones didn't have vertical stacks ...

That's correct. Compared to the version used on switchers, the stacks were cut off at the top of the horizontal component. I learned this the hard way watching four Geeps pulling a freight out of New London: I was standing on an overpass and was nearly deafened by the chorus of 567s in Run 8

[Kali]

Anyone any good with emitters? I don't like doing them, so I'm not really any good. I have a reasonable effect at the exhaust but it just turns into a big puffball. Just using extra defaults does the same thing, unfortunately.

I'm going to freeze the current script library once I've made sure most of it actually works, and start over now I've learned rather a lot more about Lua. There's a diesel smoke handling library and some stuff to make controls easier as well as the other bits for numbers & so on, so it might be useful to someone.

[Kali]

Annnd... this is why I need someone who knows what they're doing :p

http://www.youtube.com/watch?v=96kDdrZMkE0

[PapaXpress]

whats the problem?

[Kali]

Looks like I got some low rez sprite trees from a 1980s game, sprayed them grey and stuck them in the exhausts. I know there's sweet spots where there's no ball of smoke, but I can't seem to get rid of this one. The video compression smoothes it out a bit also.

[philmoberg]

Annnd... this is why I need someone who knows what they're doing :p ...

Can't help you with the script - I'm just taking my first look at the subject, myself - but based on your video, and having seen first generation EMDs start up a few times, I would suggest that you slow down the vertical velocity and adjust the particle cloud to be lighter/more transparent, and to disperse a bit more quickly. These units weren't turbocharged, as a result of which the exhaust velocity wasn't as fast as what we typically see these days. It may be beyond the current capability of the sim, but the old EMDs tended to have a bluish exhaust, especially when running cold; while Alcos were black, primarily because their turbochargers were powered by the engine's exhaust gasses; and FMs tended to be white. Fans in this part of the world tell me you could always know which type of diesel was on the hump at Cedar Hill (New Haven) by the colour of the exhaust.

[Kali]

Ah I can script until the cows come home, it's just setting emitters up I can't do. I can't seem to get the cloud to disperse before it turns into a ball, for some reason.

[dick8299]

I took a look at Steam\steamapps\common\railworks\Assets\Kuju\RailSimulatorUS\Particles\Engine_DieselExhaust01.bin and one thing you might want to look at is the line for fLifeCycle. Perhaps your particles are not 'dying' soon enough.

You might want to at least compare your particle file with theirs as a starting point.