Page 20 - 3D World - October 2017
P. 20

FEATURE
          Journey’s end


                                                                                                       Making how the snow
                                                                                                         interacted with fur
                                                                                                          believable was a
                                                                                                        particular challenge























































          The motion capture       “We’ve been pushing the technology to the point
          performances of
          Terry notary and         Where it becomes the sAme kind of tools if you
          Steve Zahn are
          rocket and Bad Ape  Were mAking A live-Action film”
          incorporated into

                          Joe letteri, Weta Digital senior Visual effects supervisor


                           were approximate. Now we       and imperfections in the hair   the Apes, we completely rewrote
                          have pushed that all into the   pick up little micro reflections   our hair shading model and went
                          software, which behaves as if you   of sunlight,” states Weta Digital   to a dual core shading model. It
                          were outside in the real world   Visual Effects Supervisor, Dan   models the cuticle but also the
                          photographing nature.” The Jungle   Lemmon, who won an Academy   medulla inside hair follicles,
                          Book provided an opportunity    Award for his contributions to   allowing us to get a more realistic
                          to field test proprietary renderer   the live-action adaptation of the   specular breakup.”
                          Manuka, which marked a transition   Disney animated classic. “That was   “On the first one it was hard
                          from spherical harmonics to ray   something that our hair simulation   enough to do the fur and get
                          tracing. “Often when fur is backlit   didn’t model correctly. At the   the simulations, interaction and
                          you get sparkly glints as the flex   beginning of War for the Planet of   reaction to the skin and lighting

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