Monsters of Grace is a multimedia chamber opera in 13 short acts directed by Robert Wilson, with music by Philip Glass and libretto from the works of 13th-century Sufi mystic Jalaluddin Rumi.

When he realized the enormous costs and effort that would be involved in performing such a project (which included such tableaux as a gigantic hand pulling a sword from the ocean and a helicopter flying over the Great Wall of China), Wilson and producer Jed Wheeler began looking into creating the entire visual end of the production with 3D computer graphics.

Wheeler eventually awarded the contract for the visual effects to the Kleiser-Walczak Construction Co., a firm that specializes in computer animation for movies.

The opera was performed with live music by the Philip Glass Ensemble while a 73-minute computer-animated film in 3D was projected above the musicians.

Although the work was initially greatly anticipated, it met with mixed reviews by critics (it was booed by some audience members following an April 1999 performance in Toronto, Ontario), and Wilson himself has remarked negatively about the project in interviews.