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new file mode 100644
index 0000000..244efcf
--- /dev/null
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diff --git a/deploy/data/placeholder_roughness.png b/deploy/data/placeholder_roughness.png
new file mode 100644
index 0000000..4508324
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diff --git a/deploy/data/sandbox.mtl b/deploy/data/sandbox.mtl
index 8bdd151..855eef0 100644
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index 579657e..fc163c3 100644
--- a/deploy/data/sandbox.obj
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