Merge pull request #160 from CesiumGS/no-metadata-fix

r-veenstra · web-flow · commit f040e88fcd4e · 2025-05-01T14:53:11.000+10:00
Fix no metadata export crash
diff --git a/CesiumIonRevitAddin/gltf/GltfExportContext.cs b/CesiumIonRevitAddin/gltf/GltfExportContext.cs
@@ -806,6 +806,7 @@ public void OnMaterial(MaterialNode materialNode)
 
                 if (!khrTextureTransformAdded && materialHasTexture)
                 {
+                    extensionsUsed = extensionsUsed ?? new List<string>();
                     extensionsUsed.Add("KHR_texture_transform");
                     extensionsRequired = extensionsRequired ?? new List<string>();
                     extensionsRequired.Add("KHR_texture_transform");

Original file line number	Diff line number	Diff line change
`@@ -806,6 +806,7 @@ public void OnMaterial(MaterialNode materialNode)`
`806`	`806`
`807`	`807`	`if (!khrTextureTransformAdded && materialHasTexture)`
`808`	`808`	`{`
	`809`	`+ extensionsUsed = extensionsUsed ?? new List<string>();`
`809`	`810`	`extensionsUsed.Add("KHR_texture_transform");`
`810`	`811`	`extensionsRequired = extensionsRequired ?? new List<string>();`
`811`	`812`	`extensionsRequired.Add("KHR_texture_transform");`