From 498f93c4d47291772da558b73cac00197b6dffa1 Mon Sep 17 00:00:00 2001
From: Kythyria Tieran <kythyria@berigora.net>
Date: Fri, 13 Oct 2023 00:34:21 +0100
Subject: [PATCH] Force object transforms to be decomposable

---
 PD2ModelParser/Exporters/GltfExporter.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/PD2ModelParser/Exporters/GltfExporter.cs b/PD2ModelParser/Exporters/GltfExporter.cs
index 4408f8c..eded1a7 100644
--- a/PD2ModelParser/Exporters/GltfExporter.cs
+++ b/PD2ModelParser/Exporters/GltfExporter.cs
@@ -109,7 +109,11 @@ void CreateNodeFromObject3D(Object3D thing, GLTF.IVisualNodeContainer parent)
                 var mat = thing.Transform;
                 mat.Translation = mat.Translation * scaleFactor;
 
-                // Some models in the wild need this doing to them, god knows why
+                // Some models in the wild need this doing to them, god knows why,
+                // but bogus fourth rows are a thing.
+                mat.M14 = 0;
+                mat.M24 = 0;
+                mat.M34 = 0;
                 mat.M44 = 1;
 
                 node.LocalMatrix = isSkinned ? Matrix4x4.Identity : mat;