From fe1f72ab0ac8bcc233c91eb5b2d71bd2d2574cf8 Mon Sep 17 00:00:00 2001
From: Danila Shutov <dcbrwn2@gmail.com>
Date: Sun, 7 Jun 2020 19:14:00 +0300
Subject: Recalculate mesh normals for CAOs (#10000)

---
 src/client/content_cao.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/client/content_cao.cpp')

diff --git a/src/client/content_cao.cpp b/src/client/content_cao.cpp
index 855729642..a6ce06d20 100644
--- a/src/client/content_cao.cpp
+++ b/src/client/content_cao.cpp
@@ -726,6 +726,14 @@ void GenericCAO::addToScene(ITextureSource *tsrc)
 				addAnimatedMeshSceneNode(mesh, m_matrixnode);
 			m_animated_meshnode->grab();
 			mesh->drop(); // The scene node took hold of it
+
+			if (!checkMeshNormals(mesh)) {
+				infostream << "GenericCAO: recalculating normals for mesh "
+					<< m_prop.mesh << std::endl;
+				m_smgr->getMeshManipulator()->
+						recalculateNormals(mesh, true, false);
+			}
+
 			m_animated_meshnode->animateJoints(); // Needed for some animations
 			m_animated_meshnode->setScale(m_prop.visual_size);
 
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