diff --git a/3d-generation-pipeline/README.md b/3d-generation-pipeline/README.md
index 684b3ec8..1cc9e81e 100644
--- a/3d-generation-pipeline/README.md
+++ b/3d-generation-pipeline/README.md
@@ -26,3 +26,4 @@
 
 ### Notes
 * TRELLIS: added functionality to specify texture baking optimisation total steps as an argument (`texture_opt_total_steps`), to replace the hardcoded 2500. But this is not tracked in Git (because modified this https://github.com/IgorAherne/trellis-stable-projectorz/releases/tag/latest)
+* Custom Shader Variant Collection to include glTF-pbrMetallicRoughness shader in build
diff --git a/Assets/_PROJECT/Scenes/DeltaBuilding_base.unity b/Assets/_PROJECT/Scenes/DeltaBuilding_base.unity
index f1407ca9..785b6794 100644
--- a/Assets/_PROJECT/Scenes/DeltaBuilding_base.unity
+++ b/Assets/_PROJECT/Scenes/DeltaBuilding_base.unity
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:7ab55f63f6e08277d728144e389597009723cfe416181f05f7388bb56f032ee0
-size 68553549
+oid sha256:bbe052996af9fc5aedc6cdb3d837bde651dfa4e285e4b473a2adc3bc642c3ef9
+size 68553734
diff --git a/Assets/_PROJECT/glTFPbrMetallicRoughness.shadervariants b/Assets/_PROJECT/glTFPbrMetallicRoughness.shadervariants
new file mode 100644
index 00000000..6397e215
--- /dev/null
+++ b/Assets/_PROJECT/glTFPbrMetallicRoughness.shadervariants
@@ -0,0 +1,14 @@
+%YAML 1.1
+%TAG !u! tag:unity3d.com,2011:
+--- !u!200 &20000000
+ShaderVariantCollection:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: glTFPbrMetallicRoughness
+  m_Shaders:
+  - first: {fileID: -6465566751694194690, guid: b9d29dfa1474148e792ac720cbd45122,
+      type: 3}
+    second:
+      variants: []
diff --git a/Assets/_PROJECT/glTFPbrMetallicRoughness.shadervariants.meta b/Assets/_PROJECT/glTFPbrMetallicRoughness.shadervariants.meta
new file mode 100644
index 00000000..6390ba84
--- /dev/null
+++ b/Assets/_PROJECT/glTFPbrMetallicRoughness.shadervariants.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: b852f2aeb9fb71a4aaab9e2d500dc3dc
+NativeFormatImporter:
+  externalObjects: {}
+  mainObjectFileID: 20000000
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/ProjectSettings/GraphicsSettings.asset b/ProjectSettings/GraphicsSettings.asset
index 8b5b84a3..c93ca80a 100644
--- a/ProjectSettings/GraphicsSettings.asset
+++ b/ProjectSettings/GraphicsSettings.asset
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:784630e80244c6cd589b3593317380f91e35e6ce272c49298418bda59f9dcb85
-size 3678
+oid sha256:163b47f567f7f00c00bf4ff36a67645fd06e202fbcfdb078b4e9869627096220
+size 3747