From 343fc1999fad27a198710914c0ec141c2e90fa3f Mon Sep 17 00:00:00 2001
From: Tommy Walton <82672795+amzn-tommy@users.noreply.github.com>
Date: Tue, 18 May 2021 10:52:41 -0700
Subject: [PATCH] ATOM-15346 : Morph target buffer only found on first Atom
 mesh (merge from 1.0->main)

Instead of assuming the first submesh will always have a reference to the morph target buffer, search the submeshes to find the first one that does.
---
 .../EMotionFXAtom/Code/Source/ActorAsset.cpp          | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Gems/AtomLyIntegration/EMotionFXAtom/Code/Source/ActorAsset.cpp b/Gems/AtomLyIntegration/EMotionFXAtom/Code/Source/ActorAsset.cpp
index 3594802dab..8dc7f9387c 100644
--- a/Gems/AtomLyIntegration/EMotionFXAtom/Code/Source/ActorAsset.cpp
+++ b/Gems/AtomLyIntegration/EMotionFXAtom/Code/Source/ActorAsset.cpp
@@ -500,7 +500,16 @@ namespace AZ
                 skinnedMeshLod.SetIndexBufferAsset(mesh0.GetIndexBufferAssetView().GetBufferAsset());
                 skinnedMeshLod.SetStaticBufferAsset(mesh0.GetSemanticBufferAssetView(Name{ "UV" })->GetBufferAsset(), SkinnedMeshStaticVertexStreams::UV_0);
 
-                const RPI::BufferAssetView* morphBufferAssetView = mesh0.GetSemanticBufferAssetView(Name{ "MORPHTARGET_VERTEXDELTAS" });
+                const RPI::BufferAssetView* morphBufferAssetView = nullptr;
+                for (const auto& mesh : modelLodAsset->GetMeshes())
+                {
+                    morphBufferAssetView = mesh.GetSemanticBufferAssetView(Name{ "MORPHTARGET_VERTEXDELTAS" });
+                    if (morphBufferAssetView)
+                    {
+                        break;
+                    }
+                }
+
                 if (morphBufferAssetView)
                 {
                     ProcessMorphsForLod(actor, morphBufferAssetView->GetBufferAsset(), lodIndex, fullFileName, skinnedMeshLod);