
5.4. Semitransparent Surfaces 153
Fi gure 5.9. Semitransparent shadows from deep shadow maps, and with motion blur. Im-
ages rendered by Victor Yudin in 3Delight. Images courtesy of DNA Research.
surface light contribution at a point to be shaded, the point is projected into the
translucent shadow map, and the values within a determined shadow map radius
are hierarchically (mipmap) ltered with a pattern of 21 samples according to a
formulation for the translucency computation. e current technique is, however,
limited to translucent objects for which all visible points can be linked by a line
segment within the translucent material to the contrib