Abstract: A method for modifying an onscreen rendering of three-dimensional data stored in a voxel cell of a voxel grid to produce an altered visual effect for the cell comprising the steps (a) for each vertex of the voxel cell, determining the data density ratio in neighboring voxel cells, or determining the material type of the voxel cell and or neighboring voxel cells, (b) for each vertex in the voxel cell, and based on the results of (a), determining to change the spatial position of the vertex, and (c) for each vertex in the voxel cell, and based on the decision in (b), generating three vertex location offset coordinates defining a new vertex location.

Abstract: A method for determining forces on a rigid body at least partially immersed in a fluid medium includes steps for (a) dividing the rigid body into a number of cells; (b) calculating buoyancy force on each rigid body cell separately, taking into account properties of the fluid medium, situation as to submersion of each cell, and position of each cell in the rigid body; and (c) integrating the separate buoyancy forces to determine the net force vector and any torque on the rigid body.

Abstract: A method for modifying an onscreen rendering of three-dimensional data stored in a voxel cell of a voxel grid to produce an altered visual effect for the cell comprising the steps (a) for each vertex of the voxel cell, determining the data density ratio in neighboring voxel cells, or determining the material type of the voxel cell and or neighboring voxel cells, (b) for each vertex in the voxel cell, and based on the results of (a), determining to change the spatial position of the vertex, and (c) for each vertex in the voxel cell, and based on the decision in (b), generating three vertex location offset coordinates defining a new vertex location.