There are mathematical techniques to try to guess what happens between these individual gridpoints, and this process is referred to as interpolation.

这里用到了一种数学技巧，可以尝试猜测这些独立的网格点之间发生的事件，这个过程被称为插值。

If we have a bunch of light sources, we can create a grid structure around them, and in these gridpoints, we can compute shadows and illumination in a highly efficient manner.

如果我们有很多束光源，我们可以在它们周围创建一个网格结构，通过这些网格点，我们可以用一种高效的方式计算阴影和光照。

Here, a solution is proposed for the Eulerian approach, which means that we do not compute these quantities everywhere in the continuum of space, but we use a fine 3D grid, and we compute these quantities only in these gridpoints.

这里提出了一个基于欧拉方法的方案，这意味着我们不去计算这些遍布连续空间里的量，而是使用一个精细的三维网格，我们仅在这些网格点中计算这些量。