Prise3D/p3d_pbrt-v4-scenes: PBRT v4 scenes for SIN3D @ 515a6ac5aeb9d7bd9fc12f8d41a368e91ece9819

Matt Pharr 2610002f30 Add rendered images and update README.md		4 lat temu
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head.exr	2610002f30 Add rendered images and update README.md	4 lat temu
head.png	2610002f30 Add rendered images and update README.md	4 lat temu