From 4f6f65f4b80757d0628047e396bf43b1f99e09dc Mon Sep 17 00:00:00 2001
From: Robert Beckebans <robert.beckebans@gmail.com>
Date: Mon, 20 Jun 2022 22:33:01 +0200
Subject: [PATCH 1/2] Ignore line definitions in OBJ files

---
 neo/renderer/Model_obj.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/neo/renderer/Model_obj.cpp b/neo/renderer/Model_obj.cpp
index 26fe9389..4e9143b6 100644
--- a/neo/renderer/Model_obj.cpp
+++ b/neo/renderer/Model_obj.cpp
@@ -125,6 +125,12 @@ objModel_t* OBJ_Parse( const char* fileName, const char* objFileBuffer, int leng
 			idStr line;
 			src.ReadRestOfLine( line );
 		}
+		else if( token == "l" )
+		{
+			// We don't support lines
+			idStr line;
+			src.ReadRestOfLine( line );
+		}
 		else if( token == "o" || token == "g" )
 		{
 			idStr line;

From 5f58f73845cb75b9a7af92709ca7c85574ff5755 Mon Sep 17 00:00:00 2001
From: Robert Beckebans <robert.beckebans@gmail.com>
Date: Mon, 20 Jun 2022 23:57:13 +0200
Subject: [PATCH 2/2] Fixed missing generation of tangent spaces for glTF files

---
 neo/renderer/Model_gltf.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/neo/renderer/Model_gltf.cpp b/neo/renderer/Model_gltf.cpp
index 431b1eca..7894c9e8 100644
--- a/neo/renderer/Model_gltf.cpp
+++ b/neo/renderer/Model_gltf.cpp
@@ -480,6 +480,9 @@ void idRenderModelGLTF::ProcessNode( gltfNode* modelNode, idMat4 trans, gltfData
 	{
 		ProcessNode( nodeList[child], curTrans, data );
 	}
+
+	// derive mikktspace tangents from normals
+	FinishSurfaces( true );
 }
 
 //constructs a renderModel from a gltfScene node found in the "models" scene of the given gltfFile.