From 11f261ba1f1200a0eb027267eebdda873745658a Mon Sep 17 00:00:00 2001
From: badlogic <badlogicgames@gmail.com>
Date: Tue, 14 Feb 2023 16:24:43 +0100
Subject: [PATCH] [ue4] Fix world vertices buffer allocation in widget.

---
 .../SpinePlugin/Source/SpinePlugin/Private/SSpineWidget.cpp     | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/spine-ue4/Plugins/SpinePlugin/Source/SpinePlugin/Private/SSpineWidget.cpp b/spine-ue4/Plugins/SpinePlugin/Source/SpinePlugin/Private/SSpineWidget.cpp
index 90b9d29e2..879811e3c 100644
--- a/spine-ue4/Plugins/SpinePlugin/Source/SpinePlugin/Private/SSpineWidget.cpp
+++ b/spine-ue4/Plugins/SpinePlugin/Source/SpinePlugin/Private/SSpineWidget.cpp
@@ -274,6 +274,7 @@ void SSpineWidget::UpdateMesh(int32 LayerId, FSlateWindowElementList &OutDrawEle
 		if (attachment->getRTTI().isExactly(RegionAttachment::rtti)) {
 			RegionAttachment *regionAttachment = (RegionAttachment *) attachment;
 			attachmentColor.set(regionAttachment->getColor());
+			attachmentVertices->setSize(8, 0);
 			regionAttachment->computeWorldVertices(*slot, *attachmentVertices, 0, 2);
 			attachmentAtlasRegion = (AtlasRegion *) regionAttachment->getRendererObject();
 			attachmentIndices = quadIndices;
@@ -283,6 +284,7 @@ void SSpineWidget::UpdateMesh(int32 LayerId, FSlateWindowElementList &OutDrawEle
 		} else if (attachment->getRTTI().isExactly(MeshAttachment::rtti)) {
 			MeshAttachment *mesh = (MeshAttachment *) attachment;
 			attachmentColor.set(mesh->getColor());
+			attachmentVertices->setSize(mesh->getWorldVerticesLength(), 0);
 			mesh->computeWorldVertices(*slot, 0, mesh->getWorldVerticesLength(), attachmentVertices->buffer(), 0, 2);
 			attachmentAtlasRegion = (AtlasRegion *) mesh->getRendererObject();
 			attachmentIndices = mesh->getTriangles().buffer();