From 970bb6e8bb7a929b0fd26dc6b61250ab38d5d216 Mon Sep 17 00:00:00 2001
From: Jett <30197659+JettMonstersGoBoom@users.noreply.github.com>
Date: Mon, 23 Dec 2024 19:19:02 -0500
Subject: [PATCH] Update rmodels.c segfault with animation and missing
 normals/animnormals

---
 src/rmodels.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/rmodels.c b/src/rmodels.c
index abb5e1b4a..276861c29 100644
--- a/src/rmodels.c
+++ b/src/rmodels.c
@@ -2380,7 +2380,7 @@ void UpdateModelAnimation(Model model, ModelAnimation anim, int frame)
 
                 // Normals processing
                 // NOTE: We use meshes.baseNormals (default normal) to calculate meshes.normals (animated normals)
-                if (mesh.normals != NULL)
+                if ((mesh.normals != NULL) && (mesh.animNormals != NULL ))
                 {
                     animNormal = (Vector3){ mesh.normals[vCounter], mesh.normals[vCounter + 1], mesh.normals[vCounter + 2] };
                     animNormal = Vector3Transform(animNormal,model.meshes[m].boneMatrices[boneId]);
@@ -2394,7 +2394,8 @@ void UpdateModelAnimation(Model model, ModelAnimation anim, int frame)
         if (updated)
         {
             rlUpdateVertexBuffer(mesh.vboId[0], mesh.animVertices, mesh.vertexCount*3*sizeof(float), 0); // Update vertex position
-            rlUpdateVertexBuffer(mesh.vboId[2], mesh.animNormals, mesh.vertexCount*3*sizeof(float), 0);  // Update vertex normals
+            if (mesh.normals != NULL)
+                rlUpdateVertexBuffer(mesh.vboId[2], mesh.animNormals, mesh.vertexCount*3*sizeof(float), 0);  // Update vertex normals
         }
     }
 }