detail attributes in .geo files

[evouga]

I'm trying to add a detail attribute to a .geo file, but can't figure out the right heading for the detail attribute dictionary. I've tried "DetailAttrib" as well as "Attrib" (since the number of detail attributes is called "NAttrib") but neither of these work. What's the right format?

[ehsan parizi]

Do you want to create a new attribute? if so, you need to append an AttribCreate sop, and set the class to detail.

[evouga]

Do you want to create a new attribute? if so, you need to append an AttribCreate sop, and set the class to detail.

I've got a script that's creating a .geo file, which I then load into Houdini for rendering. I want to modify that script to add information to the .geo file that Houdini will then read in as a detail attribute.

For example my script might output

GEOMETRY V5
NPoints 0 NPrims 0
NPointGroups 0 NPrimGroups 0
NPointAttrib 0 NVertexAttrib 0 NPrimAttrib 0 NAttrib 1
Attrib
height 1 float 0.5
beginExtra 
endExtra 

but this doesn't work, because the "Attrib" line here is wrong, and needs to be something else. However the dictionary name for the attribute dictionary is missing from the .geo file format specification at http://www.sidefx.com/docs/houdini9.5/io/formats/geo so I don't know what to put there instead.

[Jason]

Can't you create a .geo file from Houdini with the attribs you need and then look at it?