VEX: How to find an attribute by partial name

[Flakked]

Hello,
For context, I'm processing some FBX files for a specific attribute name. The issue I'm running into is this attribute's name is not consistent across all the source geometry, but they do all have in common a certain string within the attribute's name. (e.g. "Base_Color")
What I'm hoping to do in VEX is find a way to parse all attributes for a specific string, and then return what the value of that attribute is. I was looking into the "hasprimattrib" function, but that returns an integer only as far as I can tell.

[tamagochy]

Use 'match' function match('*Base_Color*', attribute) it returns 0 or 1

[Flakked]

Thank you for the response!
Hmm, I might not have explained my issue very well haha. I'll upload an  example HIP file to hopefully convey the question better!
In regards to your answer, I don't believe that function can work in this context, as the exact name of the attribute will vary from asset to asset, and I believe the match func requires and exact name in order to work?

 

 

attribute_partial_name_example.hip

Edited January 5, 2024 by Flakked

[konstantin magnus]

Hi JD,

append a primitive wrangle right after your merge1-node, that

• puts all primitive attributes into an array and checks if they match the name Color
• if their string is longer than 0, assign it to a variable named path and break out of the loop.

 

string attribs[] = detailintrinsic(0,"primitiveattributes");

string path;
foreach(string a; attribs){
    if(match('*Color*', a)){
        string path_n = prim(0, a, i@primnum);
        if(len(path_n)>0){
            path = path_n;
            removeattrib(0, 'prim', a);
            break;
        }
    }
}

s@path = path;

attribute_partial_name_example_KM.hipnc

Edited January 5, 2024 by konstantin magnus

[Flakked]

On 1/5/2024 at 6:12 PM, konstantin magnus said:

Hi JD,

append a primitive wrangle right after your merge1-node, that

• puts all primitive attributes into an array and checks if they match the name Color
• if their string is longer than 0, assign it to a variable named path and break out of the loop.

 

string attribs[] = detailintrinsic(0,"primitiveattributes");

string path;
foreach(string a; attribs){
    if(match('*Color*', a)){
        string path_n = prim(0, a, i@primnum);
        if(len(path_n)>0){
            path = path_n;
            removeattrib(0, 'prim', a);
            break;
        }
    }
}

s@path = path;

attribute_partial_name_example_KM.hipnc 70.08 kB · 4 downloads

Ahh, thank you! I ended up coming up with a solution that also involved using the detailintrinsic, but I think your code is much cleaner haha. This is what I cobbled together if interested heh:
 

string attrib_name_array[] = detailintrinsic(0,"primitiveattributes");

// printf("%s", attrib_name_array);

foreach(int i; string attrib_current_name; attrib_name_array){
    if (match("*Base_Color*", attrib_current_name) == 1 && prim(0, attrib_current_name, @ptnum) != ""){
        s@texture_name = prim(0, attrib_current_name, @ptnum);
    }
}

 

[vinyvince]

Notice the Intrisinc Detail Memory usage... Usefull!

 

Notice also that if you take a Box primitive, increase the subd in one axe and revert back just one second after to the minimum, the SOP node occupies a footprint RAM 5 times what it should ! 

Like if the RAM never totally get properlly refreshed... That's is not as nice