Report default use of null device.

Description

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.

Usage

rgl.useNULL()

Value

A logical value indicating the current default for use of the null device.

Author(s)

Duncan Murdoch

See Also

open3d and rgl.open.

Examples

rgl.useNULL()