  This paper presents a realization of the approach to spatial 3D stereo of
visualization of 3D images with use parallel Graphics processing unit (GPU).
The experiments of realization of synthesis of images of a 3D stage by a method
of trace of beams on GPU with Compute Unified Device Architecture (CUDA) have
shown that 60 % of the time is spent for the decision of a computing problem
approximately, the major part of time (40 %) is spent for transfer of data
between the central processing unit and GPU for computations and the
organization process of visualization. The study of the influence of increase
in the size of the GPU network at the speed of computations showed importance
of the correct task of structure of formation of the parallel computer network
and general mechanism of parallelization. Keywords: Volumetric 3D
visualization, stereo 3D visualization, ray tracing, parallel computing on GPU,
CUDA
