Gato Roll

Fragtzack · 04-20-09, 02:58 PM

Seems the gato rolls to much. Maybe this is the real roll effects and rate, but I think the roll rate is over done for the gato in silent hunter4.

After testing for hours, I find that changing of the center of gravity from 2.82 to 2.52 makes the rolls seems natural. You can make the sub almost have no roll by moving the number to like 0.12.

I tried changing the global wave attenuation, but then certain visual effects no longer looked right. Such as other ships wave crashing and rolls seemed to weak after modifying wave attenuation. In addition, lessening the wave attenuation made the pitching of boats (at least gato) to be too small. Best to change the center of gravity on each boat, then attempting a wave behavior modification.

Arclight · 04-20-09, 03:27 PM

Welcome aboard.

And a heck of an introduction.

The supermods alter the pitch & roll of the boat, and I think there are a few standalone mods dealing with it as well. You could always release your own mod, if you prefer your personal tweaks.

04-20-09, 10:54 PM

yep, all you want to change is the center of gravity (and FYI that number is in meters) so your only changing how the sub acts

changing other things can have very unintended side effects

Sailor Steve · 04-21-09, 11:20 AM

WELCOME ABOARD!

And yes, it has been mentioned before.

keltos01 · 04-21-09, 11:58 AM

welcome aboard ! way to go !

keltos

Vikinger · 04-21-09, 12:08 PM

Welcome to the forum.

An other thing that affect the pitch and roll is the water speed.
I made a small change in the Litefog V2 mod that have slower water and it affected the pitch and roll in a very positive way. Somehow it looks more natural for the subs

mike_espo · 04-21-09, 12:36 PM

Quote:

Originally Posted by WEBSTER

yep, all you want to change is the center of gravity (and FYI that number is in meters) so your only changing how the sub acts

changing other things can have very unintended side effects

OK.

Which file has to be edited to do that??

Fragtzack · 04-21-09, 03:14 PM

Quote:

Originally Posted by mike_espo

OK.

Which file has to be edited to do that??

data\Submarine\NSS_Gato.sim is the file.

11: unit_Submarine
-> obj_Hydro
-> Debug
-> gc_height

Is the data structure to modify using Silent 3ditor

04-21-09, 03:47 PM

gc_height = the center of gravity

to put it simply its in meters and is how far above the waterline your center of gravity is

mike_espo · 04-21-09, 05:40 PM

thanks!

04-20-09, 02:58 PM	#1
Fragtzack Seaman Join Date: Apr 2009 Posts: 32 Downloads: 78 Uploads: 0	Gato Roll Seems the gato rolls to much. Maybe this is the real roll effects and rate, but I think the roll rate is over done for the gato in silent hunter4. After testing for hours, I find that changing of the center of gravity from 2.82 to 2.52 makes the rolls seems natural. You can make the sub almost have no roll by moving the number to like 0.12. I tried changing the global wave attenuation, but then certain visual effects no longer looked right. Such as other ships wave crashing and rolls seemed to weak after modifying wave attenuation. In addition, lessening the wave attenuation made the pitching of boats (at least gato) to be too small. Best to change the center of gravity on each boat, then attempting a wave behavior modification.

04-20-09, 03:27 PM	#2
Arclight Navy Seal Join Date: Jun 2008 Location: Land of windmills, tulips, wooden shoes and cheese. Lots of cheese. Posts: 8,467 Downloads: 53 Uploads: 10	Welcome aboard. And a heck of an introduction. The supermods alter the pitch & roll of the boat, and I think there are a few standalone mods dealing with it as well. You could always release your own mod, if you prefer your personal tweaks. __________________ Contritium praecedit superbia.

04-21-09, 11:20 AM	#4
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	WELCOME ABOARD! And yes, it has been mentioned before. __________________ “Never do anything you can't take back.” —Rocky Russo

04-21-09, 11:58 AM	#5
keltos01 Silent Hunter Join Date: Feb 2008 Location: Milan Italy Posts: 4,999 Downloads: 114 Uploads: 18	welcome aboard ! way to go ! keltos __________________ "Honorable Builder of Sinking Ships"

04-21-09, 12:08 PM	#6
Vikinger Captain Join Date: Sep 2004 Location: Sweden Posts: 514 Downloads: 44 Uploads: 6	Welcome to the forum. An other thing that affect the pitch and roll is the water speed. I made a small change in the Litefog V2 mod that have slower water and it affected the pitch and roll in a very positive way. Somehow it looks more natural for the subs __________________

04-20-09, 10:54 PM	#3
Webster Stowaway Posts: n/a Downloads: Uploads:	yep, all you want to change is the center of gravity (and FYI that number is in meters) so your only changing how the sub acts changing other things can have very unintended side effects

04-21-09, 03:47 PM	#9
Webster Stowaway Posts: n/a Downloads: Uploads:	gc_height = the center of gravity to put it simply its in meters and is how far above the waterline your center of gravity is

04-21-09, 05:40 PM	#10
mike_espo Sonar Guy Join Date: May 2005 Location: Chicago, USA Posts: 396 Downloads: 12 Uploads: 0	thanks!

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