From b06138b464480987ee52811e93ca8cd29e65a34a Mon Sep 17 00:00:00 2001
From: Triang3l <triang3l@yandex.ru>
Date: Sat, 21 Nov 2020 21:52:17 +0300
Subject: [PATCH] [GPU] Disable faceness for rectangles temporarily

---
 src/xenia/gpu/xenos.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/xenia/gpu/xenos.h b/src/xenia/gpu/xenos.h
index d3a78a850..4117a8293 100644
--- a/src/xenia/gpu/xenos.h
+++ b/src/xenia/gpu/xenos.h
@@ -82,7 +82,6 @@ constexpr bool IsPrimitivePolygonal(bool tessellated, PrimitiveType type) {
     case PrimitiveType::kTriangleFan:
     case PrimitiveType::kTriangleStrip:
     case PrimitiveType::kTriangleWithWFlags:
-    case PrimitiveType::kRectangleList:
     case PrimitiveType::kQuadList:
     case PrimitiveType::kQuadStrip:
     case PrimitiveType::kPolygon:
@@ -90,6 +89,10 @@ constexpr bool IsPrimitivePolygonal(bool tessellated, PrimitiveType type) {
     default:
       break;
   }
+  // TODO(Triang3l): Investigate how kRectangleList should be treated - possibly
+  // actually drawn as two polygons on the console, however, the current
+  // geometry shader doesn't care about the winding order - allowing backface
+  // culling for rectangles currently breaks Gears of War 2.
   return false;
 }