attribute name

[doldory]

hi guys

I'm a total beginner and have a newbie question!

I'm a bit confused about creating attributes in the nodes like attribute create or bind export.

It seems like, if I type an already existing attribute name like 'v' or 'n' , they automatically set velocity and normal value. But if I type some other name like 'blahblah', they create custom attribute and set a value for it.

 

Do I understand this correctly?

Thanks in advance.

[acey195]

Yup that is correct

if you are creating these attribs by binding in wrangles, you can specify the attribute type with a prefix (or set the type in the bind export node in vops)

in wrangles for example, you can use i@blahblah to create an integer attrib, or v@blahblah to make it a vector(float3)
if you do not define the type, by default it will become a singular float attribute type.

[Fenolis]

Here is a list of the attributes that Houdini natively uses: https://www.sidefx.com/docs/houdini/vex/snippets.html#known

[doldory]

7 hours ago, Fenolis said:

Here is a list of the attributes that Houdini natively uses: https://www.sidefx.com/docs/houdini/vex/snippets.html#known

 

19 hours ago, acey195 said:

Yup that is correct

if you are creating these attribs by binding in wrangles, you can specify the attribute type with a prefix (or set the type in the bind export node in vops)

in wrangles for example, you can use i@blahblah to create an integer attrib, or v@blahblah to make it a vector(float3)
if you do not define the type, by default it will become a singular float attribute type.

 

Thank you all!