require

Requires the given vertex attribute to be present in rendered geometry (e.g. UV1, COLOR).

Requires the given vertex attribute to be present in rendered geometry (e.g. UV1, COLOR).

Requires the given vertex attribute to be present in rendered geometry (e.g. UV1, COLOR).

Requires the given vertex attribute to be present in rendered geometry (e.g. UV1, COLOR).

Requires the given vertex attribute to be present in rendered geometry (e.g. UV1, COLOR).