Hey guys.
I’m trying to Have my driver for my shape key to have an if then statement.
Basically. if Bone var X Rotation == 90; shapekey var (Lets say Angry Face) = 1
That is simply what I’m trying to do but I dont know how to get the variable number Bone Rotation X value.
How do I get this X Value and put it into a property?
If i can figure that out everything should be pretty simple.
But I dont know how to get Bone X Rotation Value into a single Property / Variable.
Just change the bones rotation to xyz-euler, then you can right click on your bones rotation-x value → copy as new driver, then you e.g. paste that on y-rotation value of a cube and you will get:
then just change it to scripted expression and use your variable as you like it:
so in my example you will get this:
Alright I appreciate your help.
But you lost me at the paste it on my Y Rotation Value.
I just need my Shape Key to set its value to one when ever I rotate it to a specific rotation.
Kind of like programing a character in a way.
I’ll give you an image example.
Her Joyful
Her Embarrassed
You see how my little box on the side rotated aswell?
I basically would like to add a driver for my shape key that sets its value from 0 to 1 if my Face Bone rotation rotates to that favored rotation. so Rotation = 90 (Sad Face) Rotation = -180 (Surprised Face)
Thats about it. I saw a tutorial where you can get the var property by creating a custom property and then Follow with an If Else Then statement.
But I dont know how to get my Face Bone X Rotation Value so I can place it in there.
Hold on I think I got what you were saying. Hold on
Well it appears my scripting is absolute ass.
Because I’m getting errors.
“It cannot contain spaces”
“It cannot contain special characters”
…
if you can send blend file, i will have a look. i can just assume…and i would rename your armature to something without “@”
Whats wrong with the @?
It keeps me organized so I wont have to scroll all over the place.
So I can always find it at the top.
And Alright I’ll upload it give me a second.
ok, you tried to SET a variable. You cannot do that. Just return the value will set it for the property you added that driver to.
try this:
1 if rotation_euler == 90 else 0
like this:
Its almost as if Blender isn’t registering it as a script function or something.
Oh wait LOL
I was typiny in the wrong prompt.
LOL
I got in the right location but it doesnt seem to be following along as it should be.
It doesn’t matter which rotation axis I move on It still doesnt seem to respond correctly. I tried greater than signs but it just isn’t following up properly.
i got the driver "kind of " working, but…it doesn’t update automatically. So i always have to go into the drivers editor and hit “update dependencies” → then it gets the right value. that’s a bit weird…
got it working now, use this:
by using this, it updates the driver automatically. Just use “var” as expression just to see that it works. If you got that, change the expression to your if statement.
result:
Alright hold on. I swapped it to Quaternion and it seems like It’s A OK now.
I had it on the Y axis btw unfortunately. Sorry if that caused confusion.
Well its good but Now I realize I can accidently skip over the axis number making it appear as if nothing is working. Is there a way I can add “&” statement in there too?
Like
1 if Rotation >= 90 && <= 120 else 0
Oh wth howd you do that? Alright then that looks simpler
i changed the input variable to:
transform channel
type: y rotation
mode : xyz euler
local space
Alright I get that. But bro.
Now it’s ignoring the if then else statement.
Its just setting a value when ever I rotate it.
