Make sure shadow shapes aren't visible (bug #5063)

CHANGELOG.md

@@ -103,6 +103,7 @@
     Bug #5050: Invalid spell effects are not handled gracefully
     Bug #5056: Calling Cast function on player doesn't equip the spell but casts it
     Bug #5060: Magic effect visuals stop when death animation begins instead of when it ends
+    Bug #5063: Shape named "Tri Shadow" in creature mesh is visible if it isn't hidden
     Bug #5069: Blocking creatures' attacks doesn't degrade shields
     Feature #1774: Handle AvoidNode
     Feature #2229: Improve pathfinding AI

components/nifosg/nifloader.cpp

@@ -585,8 +585,11 @@ namespace NifOsg
             {
                 const Nif::NiTriShape* triShape = static_cast<const Nif::NiTriShape*>(nifNode);
                 const std::string nodeName = Misc::StringUtils::lowerCase(triShape->name);
-                static const std::string pattern = "tri editormarker";
-                if (!hasMarkers || nodeName.compare(0, pattern.size(), pattern) != 0)
+                static const std::string markerName = "tri editormarker";
+                static const std::string shadowName = "shadow";
+                static const std::string shadowName2 = "tri shadow";
+                const bool isMarker = hasMarkers && !nodeName.compare(0, markerName.size(), markerName);
+                if (!isMarker && nodeName.compare(0, shadowName.size(), shadowName) && nodeName.compare(0, shadowName2.size(), shadowName2))
                 {
                     if (triShape->skin.empty())
                         handleTriShape(triShape, node, composite, boundTextures, animflags);