int usd_isprimvar(<stage>stage, string primpath, string name)
This function checks whether the primitive has a given primvar.
<stage>
When running in the context of a node (such as a wrangle LOP), this argument can be an integer representing the input number (starting at 0) to read the stage from. The integer is equivalent to the string form referencing a particular input, e.g., "opinput:0".
primpath
The path to the primitive.
name
Primvar name (without namespace).
Returns
1 if the primvar exists, or 0 otherwise.
Examples
// Check if the sphere primitive has a primvar "some_primvar". int is_primvar = usd_isprimvar(0, "/geometry/sphere", "some_primvar");
| See also | |
| usd | |
| usd_primvar |
|