• Welcome to MX Bikes Official Forum. Please login or sign up.
 
March 29, 2024, 01:30:31 PM

News:

MX Bikes beta18j available! :)


Show posts

This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.

Messages - HornetMaX

91
General Discussion / Re: LAA and loading big tracks
April 10, 2017, 11:17:10 PM
Yeah, I was surprised that still allows to connect online, but maybe that doesn't mean that there's no other check done on the .exe.

Don't think it will have much of an impact on server but who knows.

Have to admit I was sceptical when I first heard of this, but as recently I was having all sort of issues in GPB with large tracks, I gave it a try and the result is very clear for me. Mind, it may be specific to my setup, hw etc etc. And it may have side effects. Anyway, it's ultra-easy to undo the change so ...
92
General Discussion / Re: LAA and loading big tracks
April 10, 2017, 10:58:23 PM
Quote from: GDUBMX on April 10, 2017, 10:46:28 PM
What's laa mate?
Read the post ?

Just for me to avoid typing the whole thing twice :)
94
Bug Reports / Re: beta6 bug list
April 06, 2017, 08:39:04 PM
Quote from: Asdrael on April 06, 2017, 03:29:15 PM
Quote from: geofanatec on April 06, 2017, 03:14:33 PMNow, there is only 1 item in the "magic formula" that I have not messed with yet. It is q_sy1 and is the only value in the formula that changes from hard to soft. So I don't know if this has anything to do with knob spacing or what? Would love to know, but thre could be something there.

If PiBoSo follows the Matlab package implementation names, Qsy1 is the Rolling resistance torque.
Very likely, that's what's in Pacejka's book (Tire and Vehicle Dynamics, 2nd edition, there's a 3rd out now) which PiBoSo follows AFAIK.

It's not a torque by itself, more of a coefficient, a % if you want. The book says it's "typically 1-2%", but at the same time the book mostly deals with cars' tyres and I can't grant this translates well to bike's tyre (or even less to mx tyres). At any rate, if you have it at 0.5 (50%) that would make my eyebrow rise :)

Personally that's not the 1st parameter I'd play with, especially if we don't know how it relates to soil type.
95
Bug Reports / Re: beta6 bug list
April 06, 2017, 09:47:14 AM
Quote from: NorCal 986 on April 06, 2017, 02:24:01 AM
Quote from: Asdrael on April 06, 2017, 12:28:00 AM
Quote from: NorCal 986 on April 06, 2017, 12:17:27 AM
Most people do not understand is that when you hit the break/ throttle in the air, you are actually effecting the front wheel very little. Hitting the rear break in the air does not bring the front end down, it bring the rear end up, and the opposite goes for the throttle.

"So if I hit rear break then front brake then rear brake I'll reach the moon? No, hitting the rear brakes makes the front end go down."
Can you use actual physics to explain your theory? From studying physics, and learning about torque, angular momentum, and Newton's Second Law, I'm just having a hard time understanding how torque and angular momentum around the center of gravity of spinning mass would effect another object (front wheel) instead of altering the angular momentum of the object which is creating the energy.  ??? Unless it is some sort of theoretical Quantum effect that I just don't understand.
No quantum effect, it's called angular momentum conservation.

Idealized situation (to keep it very simple): bike flying forward at constant speed, perfectly horizontal, rear wheel spinning.

The angular momentum of the entire bike (relative to the rear wheel axle) is given by the rear wheel inertia (along its rotation axis) times its angular speed, as the rest of the bike is not rotating relatively to the rear wheel axle.
When you hit the rear brake, the angular speed of the rear wheel will go down, so its angular momentum too. For the total angular momentum to stay constant, something else must start rotating and the only option is that the bike starts rotating around the rear wheel axle. Its rotation speed depends on the initial total angular momentum, on how much the rear wheel slows down and on the "bike minus rear wheel" inertia around the rear wheel axle.

The heavier the rear wheel the more the effect is noticeable. The heavier the bike (minus rear wheel) the less the effect is noticeable.

If you want an easier way to visualize this (guess Asdrael will call this the TL/DR version :) ): when you hit the brake the pads squeeze the disc and that generates friction, i.e. a force that tries to slow down the wheel. By reaction, an equal and opposite force will try to "accelerate" the brake caliper, to drag it along with the disc rotation. As the caliper is tied to the swingarm (itself tied to the bike frame), the bike will start rotating around the rear wheel axle, as in the air the bike is not supported by anything.
96
Plugins / Re: MaxHUD plugin
April 02, 2017, 11:03:53 AM
Quote from: GDUBMX on April 01, 2017, 09:04:31 PM
anyway to change font colour of the standings element max?
Look in the MaxHUD.ini file, the _color_* stuff.

If you find a nice combo let me know :)
97
Quote from: Asdrael on April 01, 2017, 03:21:10 PM
Quote from: HornetMaX on April 01, 2017, 03:13:42 PMWow, I just noticed something *very* weird: I have Avast free as antivirus

TLDR of HornetMax post for the lazy ;)

(Avast, Norton etc are memory hogs, shit ton of false positives and false negatives, especially with programs writing in files outside of their own folder). I know it's not fashionable but Windows Defender (yes it's free) and a bit of common sense trumps any 3rd party antivirus those days for home use, in particular the free alternatives.
I had avast for the past 3 or more years, no big issue. Had plenty of others before, no big issue either (until the day I get annoyed by offers to upgrade to pro or similar spam).
Not many false positives, not much resource usage either.

win Defender ? No thx, I'll skip on that one :)  It's ok-ish as it's free, but there are others free that do a better job.

Quote from: TFC on April 01, 2017, 04:23:51 PM
Strange, I use Avast and MaXhud and don't have any problems.. Maybe there is more to it..?
Pay attention if there's any Avast update (the program, not the virus db). I didn't have any issue before that (past 3 years or more) ...

For me it was absolutely clear the problem was coming from Avast. After that, it could be limited to my situation (Win7 x64, specific avast settings etc etc).
98
Wow, I just noticed something *very* weird: I have Avast free as antivirus and it updated 1-2 days ago.
Since I noticed weird things: my plugin was very slow each time I was interacting with it (show/hide widgets, move stuff around, etc), like a 1 sec freeze of everything in MXB (except sound).

I spent 2 hours trying to find a bug in my code, no joy. Then noticed other weird stuff: all Piboso's sims were way slower to load and to go to track.
But if I removed my plugin, they were as fast as they have usually been. So 3 more hours of bug hunting, no joy.

Then I noticed that Visual Studio was slightly slower in compiling my code, something like 10% slower.

So I started thinking Avast was playing games and I switched it off, but no joy. So 2 more hours of bug hunting, still for zero results.

Only after intense headbanging I noticed the problem in my plugin seemed to arise when it writes its status to the .ini file (i.e. startup and any time you change something).
From there I was pretty sure it was Avast's fault, but hey, I switched it off and that didn't make any difference ...

So I tried the silly approach: remove Avast. Problem gone  :o  >:(  :o  >:(  :o  >:(

I don't know if the latest Avast updates screwed anything of if they just rest some options I had previously tuned. At any rate, that's a bug no-no in my book, so Avast gone.

Just in case you have the same issue.
99
Bug Reports / Re: beta6 bug list
April 01, 2017, 03:02:12 PM
Quote from: Bj Slice on April 01, 2017, 03:47:16 AM
in real life, in mid air, you can't lean forward without pulling the handlebars back. If you are on the ground or shall we say stand still, then you can lean forward or back without pulling or pushing the fron end. This is not a bug. This not a mistake either. This just how it would have to.
+1 for the above.

Quote from: Bj Slice on April 01, 2017, 03:47:16 AM
The rear brake tap however could use a little bit more effect when looping out and of course the auto clutch is horible. When you use your rear brake, whether mid air or on the ground, automatic the clutch is held until you hit the throttle again coz your bike will continue to run freewheel. Looping out could be compensated by tapping the rear brake (of course everyone knows) but the bike always goes clutch-engage and lose engine braking.
Just use manual clutch no ?

Quote from: Bj Slice on April 01, 2017, 08:41:55 AM
What went wrong? Was my landing so bad?

check this video out. thanks!

https://www.youtube.com/watch?v=QVzRBjinZzE&feature=youtu.be
Landing hard on the rear, suspension bottoming out, force impulse being transmitted to the rider, rider legs/arm springs not soaking it up enough ==> rider "core" sees an instant g force above its max threshold and separates from the bike. That what I'd put my money on, if really obliged to :)


100
Quote from: Asdrael on April 01, 2017, 12:18:30 AM
Massive load times here. We need a "lower the size of bikes and skins" campaign.
Can't agree more. Just downloaded SM pack: 1 bike = 180-240MB + 105-188MB for the tyres. And that's ZIPPED (.pkz) ...  :o
101
Quote from: Asdrael on March 31, 2017, 03:34:07 PM
As far as I understand Direct Steer, high values mean your stick is actually your handlebar turning force, low value your bike leaning force (roughly don't burn me), which is a result of the handlebars turning.
As far as I've understood (from GPB) Direct Lean 100% means your stick is the target lean angle. With Direct Lean 0% (long time ago, Direct Lean was only On/Off, no intermediate value) there's some sort of "magic" filtering applied to your stick position  so that the control becomes less sensitive (Piboso himself used to say that Direct Lean ON/100% is supposed to be used with high precision devices like joysticks or better, not really joypads).

From what I see, it seems to me that starting with bike vertical and wanting to lean fully left, Direct Lean 0 or 100 behaves in a similar manner. The big difference seems to be when you want to pick your bike up (e.g. go from leaning left to vertical, or clearly from leaning left to leaning right): with Direct Lean 0%, if you just put your stick in the middle, the bike will react slowly, it will come back vertical veeeeery slowly. So slowly than in fact you're obliged to "overshoot", i.e. you will push your stick not to center but to the right, to make the bike pick up faster. Once the bike is vertical, you will move your stick to the middle. With Direct lean 100%, you don't need that. On the contrary, as the stick output is the target lean, you have to move it more carefully.

Short version: with Direct Lean 0% you can bash your stick left/right like a madman (actually, you almost must). With Direct Lean 100% you have to gently move the stick as if conducting brain surgery on a beloved one.

After years of debates in GPB (mind, MXB is pretty different) my conclusion is that one is not better than the other, in GPB you can be fast with any of the two. But it takes time to get accustomed to one coming from the other, so that's why people using it at 100% say 0% is shit (and vice versa, of course).

Personally, I tend to use very high values of direct lean in both GPB and MXB (by high I mean 100% :) ).

P.S.
I have a joypad ans I've put some "stick extensions" on it (something like this: https://www.kontrolfreek.com/thumbsticks/fps-freek-classic.html). I think they make you more precise.
102
General Discussion / Re: Newbie MX Bikes Demo player
March 31, 2017, 05:49:05 PM
Quote from: Sandbiter on March 31, 2017, 05:47:26 PM
Quote from: HornetMaX on March 30, 2017, 03:36:35 PM
Quote from: Sandbiter on March 28, 2017, 04:10:04 PM
Geo! Buy me WRS please ;)
There's also MXGP 3  ;D
WRS had more potential, at least if the netcode is good. If the netcode is good I'll buy it myself and host championships. Until then, Geo can buy it for me.
I was being ironic/sarcastic ...
103
Plugins / Re: MaxHUD plugin
March 30, 2017, 03:42:39 PM
Quote from: GDUBMX on March 29, 2017, 04:10:11 PM
Haha you still can mate :) I'm beta testing about 4 different projects for people at the moment why not make it 5!
Yeah ... why not. But still not :)
104
General Discussion / Re: bravo
March 30, 2017, 03:41:17 PM
Oxford comma ... mark +1 in the colum of things I've learnt today :) Have to admit the pros have a point:

QuoteAmong those interviewed were his two ex-wives, Kris Kristofferson and Robert Duvall.
VS
QuoteAmong those interviewed were his two ex-wives, Kris Kristofferson, and Robert Duvall.

Funny :)
105
General Discussion / Re: Newbie MX Bikes Demo player
March 30, 2017, 03:36:35 PM
Quote from: Sandbiter on March 28, 2017, 04:10:04 PM
Geo! Buy me WRS please ;)
There's also MXGP 3  ;D