TransmissionThinwallTestGrid

This tests the differences in index of refraction between thin-wall and volumetric transmission. The asset was requested in issue #66.
KhronosGroup · Dec 3, 2023 · 23fe57b · 23fe57b
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diff --git a/Models/TransmissionThinwallTestGrid/README.body.md b/Models/TransmissionThinwallTestGrid/README.body.md
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+## Screenshot
+
+![Screenshot from glTF Sample Viewer](screenshot/screenshot_Large.jpg)
+<br/>_Screenshot from [glTF Sample Viewer](https://github.khronos.org/glTF-Sample-Viewer-Release/)._
+
+## Description
+
+This asset tests the differences in index of refraction between thin-wall and volumetric transmission, using extensions [KHR_materials_ior](https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_materials_ior), [KHR_materials_transmission](https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_materials_transmission), and [KHR_materials_volume](https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_materials_volume). The top row of spheres omits the volume extension to cause thin-wall behavior.
+
+The spheres in the bottom row are 2m in diameter with a volume `thicknessFactor` of 1m, to approximate an average thickness through each volume.
diff --git a/Models/TransmissionThinwallTestGrid/glTF-Binary/TransmissionThinwallTestGrid.glb b/Models/TransmissionThinwallTestGrid/glTF-Binary/TransmissionThinwallTestGrid.glb
diff --git a/Models/TransmissionThinwallTestGrid/glTF/TransmissionThinwallTestGrid.bin b/Models/TransmissionThinwallTestGrid/glTF/TransmissionThinwallTestGrid.bin