Abstract: An animated special effect is modeled using a fluid dynamics framework system. The fluid dynamics framework for animated special effects system accepts volumetric data as input. Input volumetric data may represent the initial state of an animated special effect. Input volumetric data may also represent sources, sinks, external forces, and/or other influences on the animated special effect. In addition, the system accepts input parameters related to fluid dynamics modeling. The input volumes and parameters are applied to the incompressible Navier-Stokes equations as modifications to the initial state of the animated special effect, as modifications to the forcing term of a pressure equation, or in the computations of other types of forces that influence the solution. The input volumetric data may be composited with other volumetric data using a scalar blending field. The solution of the incompressible Navier-Stokes equations models the motion of the animated special effect.

Abstract: An animated special effect is modeled using a fluid dynamics framework system. The fluid dynamics framework for animated special effects system accepts volumetric data as input. Input volumetric data may represent the initial state of an animated special effect. Input volumetric data may also represent sources, sinks, external forces, and/or other influences on the animated special effect. In addition, the system accepts input parameters related to fluid dynamics modeling. The input volumes and parameters are applied to the incompressible Navier-Stokes equations as modifications to the initial state of the animated special effect, as modifications to the forcing term of a pressure equation, or in the computations of other types of forces that influence the solution. The input volumetric data may be composited with other volumetric data using a scalar blending field. The solution of the incompressible Navier-Stokes equations models the motion of the animated special effect.

Abstract: A model car employs at each wheel a spring member mounted in surrounding relationship relative to a guide tube, with the guide tube mounted fixedly to a respective wheel axle at a lower end of the guide tube, with an upper end of the guide tube mounted to an upper control arm portion of the model car vehicle, wherein a drive motor includes a cable directed through the guide tube to effect adjustable displacement of the control arm relative to the axle at each wheel of the model car structure.