Explanation of Bulge Weight Maps, pleeze :)

wancow

Can sumbuddy pleeze explane what it is Bulge Maps are fer? I noe at leest won other person hoo maiks stuff for Genesister to ware hoo dunno eether...

kitakoredaz

Buldge map is used modify weight map effect.
when you color vertices for each node (arm or foot etc) 3 rotation,
sometimes it can not fit to the rotation value.
so need to set buldge map. actually genesis has setted many buldge map for each node and rotation.

let see my pic 1 (I made shell suit which transfer genesis weight to understand buldge before)

I set ERC for X buldge map of chest, so I can change X buldge map pos and neg value by parameter tab.
"buldge bend R"

100%,, Xbuldge pos value to 30
-100% Xbuldge pos value to -30
,
zero means no influence ( Xbuldge pos value zero )

you can see red coloerd area for chest node X buldge map (it works when you x rotate= bend ,chest )

then I bend 45 positive chest (rotation chest node 45 degree X pos value)
so that,, if there is buldge map for X rotation,,
and budge pos value are not zero and plus value, the coloerd vertices move to the normal vector

eg,,, now pos value is +30 that means when you bend positive (+ 45)
the colored vertices move to normal vector with 30 strongness.

keep the bend 45 positive rotation for chest,

if I change the pos value to 15,(I changed buldge bend R 50%) the movements reduce (move half) pic 2
if I change the pos value to 0 , the buldge map can not make infulence pic 3

now I change the pos value to -30 , you can see the vertices move to oposite normal. pic4

so that,, pos and neg means which direction,, you rotate each node . (positive and negative)
then pos value means the strongness of the buldge map influence which move to coloered area to normal vector.

you can see,, the pos buldge map can only work when you bend positive direction.
when you bend negative value,, the neg buldge map can only work .

about R and L,,there is no meaning R and L ^^;

But you can make two bulge map for each node rotation. it is bery useful,, eg

you color buldge R for behind parrt of chest,, (hip area)
and you can color buldge L for behind part of chest (stomach area)
so that you can controlle different part by each buldge map.

but, if you set buldge R on one vertices,,
it can not be assgined buldge L.

maybe,, another person follow me and correct me. %-P
so that I can lern more.

wancow

I am a little confused, but basically you are telling me this will help adapt a joint's effect, so I should experiment.

kitakoredaz

:down:
OK ,,,I tell how I use buldge map,,,

after I color wight map for figure,,,(shut or pants etc)
I may find poligons around joint area can not bend smooth.
or make poke through etc,,
so I hope to modify the area.

1 select the node
2 apply "buldge map right" in weight map tool
3 set value for pos only , keep 0 about neg value (usually,, I apply pos value for buldge right )
4 bend the node to positive direction some (10 etc)
5 color buldge "weit map right" then see how effect. with bending to positive
6 then adjust again the value of pos. modify buldge weight map

next
7 apply buldge map left
8 this time,,, set value for neg only (pos value set zero)
9 bend the node to negative direction (-10 etc)
10 color buldge "weit map left" then see how effect.
11 adjust the value of negative,, or modify buldge weight map again.

it is easy to say ,,but it is difficult to use it well ^^;

and sorry confuse you.