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GP Bikes => Media => Topic started by: HornetMaX on January 27, 2014, 11:31:28 PM

Title: Why GP Bikes is good
Post by: HornetMaX on January 27, 2014, 11:31:28 PM
Easy, because no other game can do that:



http://www.youtube.com/v/u5BjxZBUFHQhttp://www.youtube.com/v/PkHERCYZ6Oo

Obtaining the above behaviors without any canned animation (e.g. the high-sides in MotoGP 13) is just freakin' amazing !

@Piboso: YOU.RULE.MAN.     (yeah, no big news here)

And now, a quiz for physics modders: somebody able to explain why, in the 2nd video (where I intentionally keep the throttle open while braking with the front) the rear wheel hops ?

You get it wrong and you'll only be allowed to mod scooters and choppers :)

MaX.
Title: Re: Why GP Bikes is good
Post by: Hawk on January 28, 2014, 02:03:51 AM
Can't explain in physics language what is going off there, but I'd have thought if you hold the front brake hard on like that while opening the throttle at that slow speed the rear wheel would just spin up and not hop about like a dancing spring... That's just too weird! Lol
Title: Re: Why GP Bikes is good
Post by: HornetMaX on January 28, 2014, 10:50:52 AM
Quote from: Hawk_UK on January 28, 2014, 02:03:51 AM
Can't explain in physics language what is going off there, but I'd have thought if you hold the front brake hard on like that while opening the throttle at that slow speed the rear wheel would just spin up and not hop about like a dancing spring... That's just too weird! Lol
Well, that would be true if the bike was stopped, like doing a burn-out. When the bike is moving it's a tad trickier :)

GPB behavior is correct. Hopping of the rear also happen, for example, when braking hard with the front and downshifting hard or braking with the rear. See this at 0:39s on this video (thanks Dani):

http://www.youtube.com/v/huGexZrovco

Actually, this hoping of the rear while braking (or, worse, total rear lock-up) is the reason for the existence of slipper clutches.
The reason for the hopping (its origin) is actually the same in the two situations.

MaX.
Title: Re: Why GP Bikes is good
Post by: Hawk on January 28, 2014, 08:10:15 PM
Yes. I can see your point and the hopping rear wheel in the video(Great video by the way!). Can this happen with two strokes? I mainly only ride the two stroke machines so I can't remember every encountering this issue.  :)
Title: Re: Why GP Bikes is good
Post by: HornetMaX on January 28, 2014, 08:19:44 PM
Quote from: Hawk_UK on January 28, 2014, 08:10:15 PM
Yes. I can see your point and the hopping rear wheel in the video(Great video by the way!). Can this happen with two strokes? I mainly only ride the two stroke machines so I can't remember every encountering this issue.  :)
With 2 strokes hopping while braking won't happen because of the lack of engine brake.

However the "intentional" hopping (braking with front and opening throttle at the same time) happens just the same: it's a bit trickier to show due to the narrow powerband and the lack of power outside it.

MaX.
Title: Re: Why GP Bikes is good
Post by: HornetMaX on February 04, 2014, 03:02:38 PM
Quote from: HornetMaX on January 27, 2014, 11:31:28 PM
And now, a quiz for physics modders: somebody able to explain why, in the 2nd video (where I intentionally keep the throttle open while braking with the front) the rear wheel hops ?

You get it wrong and you'll only be allowed to mod scooters and choppers :)
Hmm nobody replied, the punishment scared the hell of of everybody :)

So why it happens ... typically under acceleration the bike squats, i.e. it compress the rear suspension. This happens when the rear tire is exchanging a force with the track, pushing the bike forward.

If now you have the rear tire pushing the bike (and the suspension) and you brake with the front, at a given point the rear will slide (longitudinally): at this point the tire is no longer exchanging that much force with the ground, hence the suspension will extend. Then the real wheel will accelerate and reach a speed at which it will regain grip and will start again to exchange a force with the track, hence compressing again the suspension.
Repeated cycles of grip/no-grip (well, less grip) will produce the hopping: the transition grip/no-grip is so fast that the compression of the suspension can literally lift the rear wheel from the ground.

In the case of a hard braking with the front, things are made worse by the fact the rear has very little load (and the rear susp may be at its limit, fully extended): applying rear brake (or too much engine braking) can and will make it hop.

MaX.
Title: Re: Why GP Bikes is good
Post by: iVolution on February 04, 2014, 04:51:12 PM
Yeah thats what I thought, just didn't want to spoil your little competition there  :P ;)
Title: Re: Why GP Bikes is good
Post by: HornetMaX on February 04, 2014, 05:58:36 PM
Quote from: iVolution on February 04, 2014, 04:51:12 PM
Yeah thats what I thought, just didn't want to spoil your little competition there  :P ;)
Yeah sure ... chicken !  ;D

MaX.
Title: Re: Why GP Bikes is good
Post by: Reactive on February 04, 2014, 06:32:22 PM
Quotebecause no other game can do that
Is it so necessary?

But most of the screenshots looks like PSOne graphic from childhood it is Ok, right?
Title: Re: Why GP Bikes is good
Post by: PiBoSo on February 04, 2014, 07:16:38 PM
Quote from: Reactive on February 04, 2014, 06:32:22 PM
Quotebecause no other game can do that
Is it so necessary?

But most of the screenshots looks like PSOne graphic from childhood it is Ok, right?

Ouch!  :'(

(http://www.mondemul.net/screens/roms/ps1nz/Superbikes%202000-PSX-NTSC-US.jpg)
Title: Re: Why GP Bikes is good
Post by: _oDi_ on February 04, 2014, 07:46:27 PM
Quote from: Reactive on February 04, 2014, 06:32:22 PM
Quotebecause no other game can do that
Is it so necessary?

But most of the screenshots looks like PSOne graphic from childhood it is Ok, right?

(http://www.reactiongifs.com/wp-content/uploads/2012/11/really.gif)
Title: Re: Why GP Bikes is good
Post by: Alby46 on February 04, 2014, 07:50:14 PM
Quote from: _oDi_ on February 04, 2014, 07:46:27 PM

(http://www.reactiongifs.com/wp-content/uploads/2012/11/really.gif)
lol
Title: Re: Why GP Bikes is good
Post by: HornetMaX on February 04, 2014, 08:35:03 PM
Quote from: Reactive on February 04, 2014, 06:32:22 PM
Quotebecause no other game can do that
Is it so necessary?
Yes, it is.

Quote from: Reactive on February 04, 2014, 06:32:22 PM
But most of the screenshots looks like PSOne graphic from childhood it is Ok, right?
Yes, it is.

Actually it is not, as your statement is false. But even if it were true, the answer would be "Yes, it is.".

The reason is that most of us do not have an orgasm when they see some HDR or lens flare (fake, 99% of the time).
But we do have one when the bike behave as above.

MaX.

P.S.
If you ever manage to finish the TT (titanic work, hats down just for trying) we'll race on it with or without HDR & tuttifrutti, don't worry about that.
Title: Re: Why GP Bikes is good
Post by: Stout Johnson on February 04, 2014, 10:20:08 PM
Quote from: HornetMaX on February 04, 2014, 08:35:03 PM
The reason is that most of us do not have an orgasm when they see some HDR or lens flare (fake, 99% of the time).
But we do have one when the bike behave as above.

THAT is so true!

(and btw, GPB graphics aren't bad - not top notch, admitted - but that's not the essence of a sim...)
Title: Re: Why GP Bikes is good
Post by: Arvoss on February 04, 2014, 10:34:33 PM
Quote from: Reactive on February 04, 2014, 06:32:22 PM
Quotebecause no other game can do that
Is it so necessary?

But most of the screenshots looks like PSOne graphic from childhood it is Ok, right?

Wait until you see Suzuka! :o With the new Suzuki it is awesome! Amazing graphics! :D
Title: Re: Why GP Bikes is good
Post by: Reactive on February 05, 2014, 06:15:21 AM
As I already said in my "some wishes (http://forum.piboso.com/index.php?topic=628.msg6348#new)" thread:
QuoteI understand it may be not in first priority, but lets face it — graphic wich looks like from ten years ago can make people cry  :'(
Look in the thread "SCREENSHOTS GP BIKES". All of you pissing while looking those beautiful pictures, but 99% of them are totally Photoshopped, much or less. Yeah, tell me more about how you dont need all this "HDR & tuttifrutti". Noone asking about "shiny heavens", just a little improvements like this:
http://www.youtube.com/v/slfGMFDyX34

Who will refuse such a picture in GPB?
Title: Re: Why GP Bikes is good
Post by: HornetMaX on February 05, 2014, 10:00:58 AM
Reactive, we all know that GPB has no top-notch graphics like other titles, but this is in general not seen as a big problem.

GPB has two pillars: physics and online racing. These will always be the top priorities.

Now if the graphic engine can be improved, then why not. But if we have to drop/delay some other developments (e.g. fix online, improve physics, improve interface, adding physics/racing features) in favor of graphics improvements, then this is not going to be very popular. At the moment, we have other things to sort out.

If you read the entire forum (and also the entire old forum) you will find that very few complaints were made about graphics: that's because the target player for this kind of game does not care a lot about that.

Bottom line: is GPB graphics top-notch ? No.
Is it as bad as you're saying ? No.
Is graphics improvement a top priority ? Unlikely.
Would it be nice to have ? Yes, once the more important stuff is done.

The majority of the players here use GPB to ... well, to ride on the bike, to race.
We surely don't use it to look at bike models and say stuff like "Look how nice is that ambient occlusion !".

MaX.

P.S.
I hate it too that 95% of the screenshots in the screenshot threads are photoshopped.
But just because it's misleading, not because GPB graphics is "bad".

Now, let's talk about that funky physics behind Test Drive Unlimited ...  ::)
Title: Re: Why GP Bikes is good
Post by: Reactive on February 05, 2014, 11:13:16 AM
Personaly Im absolutly agree with you, Max.
QuoteRe: Busy...
« Reply #102 on: February 04, 2014, 09:09:13 AM »
As for me, who love to create more then just simple using, who believe in advantage of simbiosis, who didnt ride no one lap online...  Nonetheless I think the main thing for working and improving is those damned netcode and online stability. Online racers are absolutely useless for modding community and for setups in real life  (you may ride a hudreds of kilometers in game, but to learn riding in real life you need a real bike, Im sure its obvious).
Therefore, I support the speech about the netcode. Let those "racers" plays in their sanboxes and not disturb creative guys do the world better. And bring their money  ;D

Seems like I raised very old "PvP vs PvE" problem, when "Player versus Player" asking for action, and at the same time "Player versus Environment" asking for eye candies. Ok, my bad. Anyway, we all trying to do our favourite game better.

Of course those TDU has terrible wooden physic, I have no words to describe how even crappy it was. And it was able to ride only 8 players in same time; server has absolutly random logic, choosing with whom you will ride. But! Hundreds of people spent hundreds of hours on Oahu. Just cruising, or staying somewhere looking on the sunset, or jumping in the mountains. With no music, only sounds of wind, forest, ocean. And that was beautiful. Two sides of one medal, you know  ;)
Title: Re: Why GP Bikes is good
Post by: LoriX on February 17, 2014, 11:48:29 PM
Ssssuper slowmo!  ;D
http://www.youtube.com/v/FiyPdNemO9o
Title: Re: Why GP Bikes is good
Post by: HornetMaX on February 18, 2014, 12:11:08 AM
Quote from: LoriX on February 17, 2014, 11:48:29 PM
Ssssuper slowmo!  ;D
Nice, but there's not a lot of technically interesting stuff in that video.

The point of ths thread was to show complex cases where GPB behavior is close to reality.

MaX.
Title: Re: Why GP Bikes is good
Post by: LoriX on February 18, 2014, 12:20:35 AM
Yeah I know, but I couldn't ind a suitable topic and I didn't want to make a whole new topic about one single video xD
Title: Re: Why GP Bikes is good
Post by: LoriX on February 18, 2014, 12:25:48 AM
Quote from: HornetMaX on February 18, 2014, 12:11:08 AM


The point of ths thread was to show complex cases where GPB behavior is close to reality.

MaX.

How about this one? :P

http://www.youtube.com/v/aQWvd9VI9jk
Title: Re: Why GP Bikes is good
Post by: HornetMaX on February 18, 2014, 12:28:37 AM
Quote from: LoriX on February 18, 2014, 12:20:35 AM
Yeah I know, but I couldn't ind a suitable topic and I didn't want to make a whole new topic about one single video xD
You should have done, the Media section is made for that :) Don't be shy !

Quote from: LoriX on February 18, 2014, 12:25:48 AM
How about this one? :P

That one is more appropriate for that topic, for sure (and I love the rider looking backward after the save ... trying to spot the banana on which the bike slipped ?).

MaX.
Title: Re: Why GP Bikes is good
Post by: rc211v on February 18, 2014, 10:24:13 AM
Seems like everyone has that Rossi paint but me :(