The group’s administrator, artist Michael Durning said there was now “momentum starting to build” behind the RGI again.
He added: “The Lillie Gallery is one of the largest exhibition spaces in the West of Scotland outside Glasgow and we have encouraged the artists to show their biggest, most colourful paintings.
“The artists enjoy putting on a nice big show, but an exciting big show is even better, and we look forward to hosting great big shows that’ll be the pride of the country.”
The exhibition also includes works by past and present RGI members from the Lillie Gallery’s own collection, including paintings by Duncan Shanks, Neil MacPherson and Dame Barbara Rae.
When the RGI was founded it was a major part of the Glasgow art scene.
Over the years it supported the early careers of artists like Charles Rennie Mackintosh, the Glasgow Boys and the Scottish Colourists.