Merge pull request #271 from pushmatrix/master

Sample models for KHR_materials_variants extension

Author: emackey

2.0/MaterialsVariantsShoe/README.md

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+# Materials Variants Shoe
+
+## Screenshot
+
+![screenshot](screenshot/screenshot-large.png)
+
+## Description
+
+This model uses the KHR_materials_variants extension. It is a shoe with 3 color variants in it: "Beach", "Midnight", and "Street".
+
+If each variant was a separate model, they would be 5.4 MB each. Combined they make up a single model that is 7.8MB since they share geometry and all textures except the base color texture.
+
+## License Information
+Copyright 2020 Shopify, Inc.  
+CC BY 4.0 https://creativecommons.org/licenses/by/4.0/