A brief history of Monte Carlo methods is presented, with emphasis on uses in engineering. An overview of daylighting design is then presented, exploring both quantity and quality of light. Various strategies for archieving effectively daylit enclousers are examined, with heavy emphasis upon coputation. Monte Carlo medhods are the only one whicth vary with incident angle (such as for glass). A General pupose computer code, DAY3D, is developed and applied to eht calculation of luminous intensities in general enclosures. Due to the rwquirement for huge computing resources, we perform an a CM-2 illustrating the promise of a small CM-2 architecture for theis problem. Next, wi explore various strategies for visualizing both field results and the discrete Monte Carlo processes