When it comes to volumetric clouds, the D stands for how many dimensions you store the points in. A 2d volume (similar to an image) has pixels stored in 2d coo

When it comes to volumetric clouds, the D stands for how many dimensions you store the points in. A 2d volume (similar to an image) has pixels stored in 2d coordinates A 3d volume has points stored in 3d coordinates. Imagine an image for every vertical slice of a brain scan. A 4d volume has points stored in 4d coordinates, where the newest dimension is time. Imagine a 3d volumetric capture for each frame in time.