Coming soon: New OR Diesel Exhaust Effects

[GoGoran]

Originally Posted by GoGoran View Post
Everything above 30fps is a waste of computer ressources. It should always stay between 24 - 30fps for seemless motion and best use of ressources.

Yeah, and that old furphy has been doing the rounds since silent movies! Bruce

Human eyes did not develop any further in the past couple of thousand years ... we still perceive anything faster than 16 - 20fps as seamless motion.

[slipperman]

Hi GoGoran,
That's what I've always believed, but there is a good discussion of the subject here : http://www.overclockers.com/forums/s...d.php?t=327353

The most important aspect of fps is that there shouldn't be abrupt drops in the rate as this is what makes it noticeable to the human eye. Allowing a cap to be applied, like in Train Simulator 2013, seems like a good attempt to avoid sudden drops in fps, as long as the value applied is not too high!

Cheers,
Ged

[OTTODAD]

I think that the subject of frame rates is being over-hyped by graphics cards manufacturers to make games and simulator users spend more money one them !

I have mine limited in both TS-2013 and MS-FS-X and my old eyes are happy watching the action. So are my WIN-XP SP3 ATI HD-6770 and WIN-7 Pro 64-bit GTX 560Ti computers running whatever !

O t t o

[superheatedsteam]

For well maintained locomotives with computer controlled fuel delivery systems, excessive smoke indicates something is wrong. A heat haze emanating from the exhaust is more realistic.

Also is OR going to support twin exhausts. Locomotives with twin stacks, like AC6000's, currently only emit particles from one exhaust.

Cheers,

Marek.

[rdamurphy]

Twin exhausts are supported. Take a look at the screenshots in the OP, you can see the GP38-2 has twin exhausts.

Robert

[baldwin]

What about 4 stackers? There are a few of those about. Far as I remember, MSTS has always supported two diesel stacks, but four has had to be fudged with an inviso file.

[GoGoran]

For well maintained locomotives with computer controlled fuel delivery systems, excessive smoke indicates something is wrong. A heat haze emanating from the exhaust is more realistic.
Cheers,

Marek.

Heat-hazes ... now that would be real DirectX 11 - material ... but I concur.

[baldwin]

Human eyes did not develop any further in the past couple of thousand years ... we still perceive anything faster than 16 - 20fps as seamless motion.

The Mark 1 eyeball will always be with us. However, the question of FPS also covers fluidity of motion in games which are markedly different than film, video or real life. Limiting FPS to somewhere between 24 and 30 is merely a compromise that allows the eye to lie to the brain.

[superheatedsteam]

Opps! Sorry Robert, my bad. I checked with the latest release version of OR on my pc and it still had a single plume. Obviously I did not pay enough attention to your screenshots.

Cheers,

Marek.

[apco25]

Glad someone brought up the heat haze visual effect....

[rdamurphy]

Experimental Release X1576 is out, if anyone would like to check out the exhaust effects close up and in the game.

Robert

[conrail1]

Everything above 30fps is a waste of computer ressources. It should always stay between 24 - 30fps for seemless motion and best use of ressources.

Wrong, as usual -

http://www.significant-bits.com/framerates-do-matter

Of course no one ever complains about games being too smooth, but the debate of 30fps vs. 60fps continues to pop up. What’s more, the 60fps side keeps losing ground, often to the argument that humans can’t really detect more than 30 frames in a single second.
And that is completely untrue.

It’s an inherently flawed statement as humans are not digital machines. The human brain is always on, always receiving input. Light hits our eyes as a wave, and the information it carries is almost instantly transmitted to the Visual Cortex. The brain analyzes this data, focusing on changes brought on by motion and fluctuations in intensity. Displacement is interpolated via motion blur and identical input is discarded to avoid extraneous processing.

The “decoded” image is further analyzed by various parts of the brain, but the overall process — as complex as it is — is quite fast and versatile. Much faster than 30fps. Faster than 60fps, in fact.

So where does the myth of 30fps come from? Well, film and TV for the most part, but the framerates of those media are not analogous to those of videogames. Others have written extensively about the topic, so I won’t go too deep into it. What I’d like to talk about, though, is why high framerates are important to games.

Motion blur is the biggest reason TV and film get away with smaller framerates. The phenomenon of motion blur relies on the human brain’s ability to stitch together a series of blurred images into a single, smooth animation. Until fairly recently, games had absolutely no motion blurring, and even these days it doesn’t have quite the same effect. The reason for this is that post-process blurring is not always accurate, and in many cases purposely*exaggerated*to create a distinctive visual effect.

To properly accommodate for all these factors, a high framerate is a must. And when it’s there, it creates a certain synchronization between the player and the game; a smooth flow that more developers should strive to achieve.

[rrroberttt]

@rdamurphy;

Can you take an look at NALW Jettrain ? Before your mod, It smoked so much that you could barely see the train, since your mode, it doesn't smoke at all.

Thanks

[Afracer40m]

Here's what my exhaust setup at full throttle 25 mph looks like in the new version, most realistic I've seen for any sim period. Ill continue tweaking and post another shot.



Under initial load up

[apco25]

Locomotives sitting on siding at idle still display heavy run 8 exhaust. Can this be looked at?