Prise3D/p3d_pbrt-scenes: All pbrt scenes redefined for PrISE3D database @ 1f7ac5420b4154d65d9d8a4eed77ff8d324c9652

Matt Pharr 14f827617c Increase sample counts to reduce noise in a number of scenes.		7 lat temu
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arcsphere.exr	14f827617c Increase sample counts to reduce noise in a number of scenes.	7 lat temu
arcsphere.png	14f827617c Increase sample counts to reduce noise in a number of scenes.	7 lat temu
ballpile.exr	3f92c2f538 Initial commit	7 lat temu
ballpile.png	3f92c2f538 Initial commit	7 lat temu
metal.exr	3f92c2f538 Initial commit	7 lat temu
metal.png	3f92c2f538 Initial commit	7 lat temu
microcity.exr	3f92c2f538 Initial commit	7 lat temu
microcity.png	3f92c2f538 Initial commit	7 lat temu