From 74144d6126e846f69e102fa6c618aa9c3c109945 Mon Sep 17 00:00:00 2001
From: Sergey Lipskiy <gonetz@ngs.ru>
Date: Sat, 3 Dec 2016 17:34:30 +0700
Subject: [PATCH] Transform vertex normale with modelview matrix when LookAt is
 not used.

Fixed Quake 2 metallic effect in the menu is broken. #1279
---
 src/gSP.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/gSP.cpp b/src/gSP.cpp
index 7b1f6702..45785e85 100644
--- a/src/gSP.cpp
+++ b/src/gSP.cpp
@@ -576,6 +576,10 @@ void gSPProcessVertex(u32 v)
 				x = DotProduct(&gSP.lookat[0].ix, fLightDir);
 				y = DotProduct(&gSP.lookat[1].ix, fLightDir);
 			} else {
+				fLightDir[0] *= 128.0f;
+				fLightDir[1] *= 128.0f;
+				fLightDir[2] *= 128.0f;
+				TransformVectorNormalize(fLightDir, gSP.matrix.modelView[gSP.matrix.modelViewi]);
 				x = fLightDir[0];
 				y = fLightDir[1];
 			}