This function checks the "rgl.useNULL"
option if present, or the
RGL_USE_NULL
environment variable if it is not. If the value is
TRUE
or a string which matches “yes” or “true”
in a case-insensitive test, TRUE
is returned.
rgl.useNULL()
A logical value indicating the current default for use of the null device.
Duncan Murdoch
open3d
and rgl.open
.