fix: smoothness was inverted / removed even if no smoothness map existed

KhronosGroup · Oct 11, 2022 · 0a2b7f6 · 0a2b7f6
1 parent 9d1033d
commit 0a2b7f6
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/UnityGLTF/Assets/UnityGLTF/Runtime/Scripts/SceneExporter/ExporterMaterials.cs b/UnityGLTF/Assets/UnityGLTF/Runtime/Scripts/SceneExporter/ExporterMaterials.cs
@@ -620,9 +620,9 @@ public PbrMetallicRoughness ExportPBRMetallicRoughness(Material material)
 					smoothness = material.GetFloat("_GlossMapScale");
 
 				var hasMetallicRoughnessMap =
-					material.HasProperty("metallicRoughnessTexture") ||
-					material.HasProperty("_MetallicRoughnessTexture") ||
-					material.HasProperty("_MetallicGlossMap");
+					(material.HasProperty("metallicRoughnessTexture") && material.GetTexture("metallicRoughnessTexture")) ||
+					(material.HasProperty("_MetallicRoughnessTexture") && material.GetTexture("_MetallicRoughnessTexture")) ||
+					(material.HasProperty("_MetallicGlossMap") && material.GetTexture("_MetallicGlossMap"));
 
 				if (!hasMetallicRoughnessMap)
 					pbr.RoughnessFactor = 1 - smoothness;