Global illumination models, such as raytracing, pathtracing or radiosity, in contrast, also account for light reflections over several surfaces (indirect illumination).

The firegrate has an area of 28.5 sq. ft.

We crouched behind the low wall until the squad of soldiers had passed by.

This distribution has puzzled grammarians, but the Iliadic examples are all from Nestor's account of the Elean war. The aberrant spelling must date from after the alleged metagrammatism.