SM Groove Radar

[ITGheaven]

*Cross-posted from my thread at the Stepmania message boards because this has been bugging me for some time, no one has solved the issue, and that thread is dying.

I have the July 30th '06 release of SM 4.0 CVS and I've been using the default theme. While browsing songs during music selection, I noticed that the Groove Radar is very accurate and consistent with measuring Chaos, Freeze, and Air. However, there are a lot of inconsistencies when measuring Voltage and Stream. Here are a few examples:

Inconsistencies with Voltage:

We all know that Ska a Go Go's Heavy and Standard charts have the same voltage; both have 16th streams


Both charts are just 8th notes so this makes no sense. Voltage is not supposed to be affected by jumps.



Same as with Ska a Go Go


Inconsistencies with Stream:


The Expert (Oni) charts have fewer steps than the Hard (Heavy) charts, so it makes no sense for the Expert (Oni) charts to have a higher Stream rating.


Since both charts have the same number of steps, the stream ratings are supposed to be identical, but the Heavy chart has a noticably higher stream rating. As with Voltage, Stream is not supposed to be affected by jumps.


Now my question is: what causes these inconsistencies in measuring Voltage and Stream and can this be fixed so that the Groove Radar gives an accurate depiction of the characteristics of charts?

[Xythar]

With Ska A Go Go, Standard should register higher voltage than Heavy since it has a longer 16th stream.

[TougaKiryuu]

Originally Posted by ITGheaven

I have the July 30th '06 release of SM 4.0 CVS

I FOUND YOUR PROBLEM! SM4=very broken. Go back to 3.9 until they fix everything. Problem solved ^_^

[MadDogBV]

I am using Stepmania 3.9, and I for one am sick of the Groove Radar going beyond its "limitations", i.e. poking outside of the radar exterior. It seems so unrealistic and makes the songs seem harder than they actually are (or even easier.)

[Blue0ctane]

ITG scrapped the groove radar, and for good reason. It's often incorrect.

[TheFlyingSquirrel]

Originally Posted by TougaKiryuu

I FOUND YOUR PROBLEM! SM4=very broken. Go back to 3.9 until they fix everything. Problem solved ^_^

Um ehehehehehehe have you ever looked at MAXX UNLIMITED's Radar in SM 3.9 when you switch to Light or Standard?

I currently am unable to get to SM on the other computer, but...

MAXX UNLIMITED light...

Stream: Fine.

Chaos: Fine.

Air: Fine. Stretching outside the ring as usual.

BUT: Freeze and Voltage = anything but fine.

Honestly, the .sm file says that the voltage value is a full 1.00000, more than MAX. (period), PSMO, AND PARANOiA -Respect-.

OMFGWTFLMAO hahahahaha. The first time I scrolled past it I was like, this is a SIX? The radar's stretching WAYYYY over right and down like a fucking parachute.



MAXX UNLIMITED on standard...

Ugh. It actually says it has LESS voltage than the light steps. Still stretching WAY over to the right, and down.



I got a huge surprise when I scrolled over MAXX UNLIMITED during my first time on a DDREX.

[ITGheaven]

GatzBiZZLE is right. Here is what he was talking about:



SM 3.9 and SM 4.0 have exactly the same Groove Radar issues, except 3.9's groove radar is scaled so that the measurements are exaggerated relative to how they appear on 4.0.

By the way:

Originally Posted by Xythar

With Ska A Go Go, Standard should register higher voltage than Heavy since it has a longer 16th stream.

Voltage has almost nothing to do with stream length, but rather the maximum steps per second, as determined by taking the arrow density as well as the BPM into account. Stream length is more so reflected in the stream rating.

[TougaKiryuu]

ahem:

#NOTES:
dance-gametype:
:
Difficulty Type:
Difficulty meter:
0.441,0.467,0.174,0.043,0.000: //GROOVE RADAR SETTINGS

if you don't like the way a groove radar looks, fix it yourself.

[ITGheaven]

I wish it was that simple, but adjusting those values in the sm file has no effect on the groove radar. The issues with the groove radar most likely originate in the source code itself.

[Patashu]

Originally Posted by TougaKiryuu

ahem:

#NOTES:
dance-gametype:
:
Difficulty Type:
Difficulty meter:
0.441,0.467,0.174,0.043,0.000: //GROOVE RADAR SETTINGS

if you don't like the way a groove radar looks, fix it yourself.

That isn't much of a solution for people who have hundreds or even thousands of songs.

[ITGheaven]

Not to mention it does absolutely nothing. The groove radar values are determined from reading over the actual steps themselves, which means the discrepencies with certain charts most likely result from errors in the algorithms that the groove radar uses to make calculations.

[Patashu]

Originally Posted by ITGheaven

Not to mention it does absolutely nothing. The groove radar values are determined from reading over the actual steps themselves, which means the discrepencies with certain charts most likely result from errors in the algorithms that the groove radar uses to make calculations.

Actually, changing the values in the .sm DOES work; it reads off of there, and it only analyzes the steps to recalculate the values when saving the simfile under edit/sync. Try it and see.

[TheFlyingSquirrel]

Tried that already.

It didn't work in 3.9

Who knows about 4.0?

[Quario]

SM4 wins again!

[ITGheaven]

What in the world?!?! How did you get a groove radar to show up in nonstop mode and have it that large?