From b305ddaed96a8d3645f86818647a568788f865ae Mon Sep 17 00:00:00 2001
From: Jonathan <jonno.5000@gmail.com>
Date: Thu, 25 Aug 2022 21:45:33 -0400
Subject: [PATCH] port over the visible = true setting for hint sides

---
 include/qbsp/outside.hh | 1 +
 qbsp/outside.cc         | 6 +++++-
 qbsp/portals.cc         | 8 +-------
 3 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/include/qbsp/outside.hh b/include/qbsp/outside.hh
index 2cdb5283..6ef061a1 100644
--- a/include/qbsp/outside.hh
+++ b/include/qbsp/outside.hh
@@ -29,5 +29,6 @@ struct tree_t;
 
 bool FillOutside(tree_t &tree, hull_index_t hullnum, bspbrush_t::container &brushes);
 std::vector<node_t *> FindOccupiedClusters(node_t *headnode);
+void MarkBrushSidesInvisible(bspbrush_t::container &brushes);
 
 void FillBrushEntity(tree_t &tree, hull_index_t hullnum, bspbrush_t::container &brushes);
diff --git a/qbsp/outside.cc b/qbsp/outside.cc
index 0b6fb8b9..918a2067 100644
--- a/qbsp/outside.cc
+++ b/qbsp/outside.cc
@@ -349,12 +349,16 @@ std::vector<node_t *> FindOccupiedClusters(node_t *headnode)
 
 //=============================================================================
 
-static void MarkBrushSidesInvisible(bspbrush_t::container &brushes)
+void MarkBrushSidesInvisible(bspbrush_t::container &brushes)
 {
     for (auto &brush : brushes) {
         for (auto &face : brush->sides) {
             if (face.source) {
                 face.source->visible = false;
+                
+			    if (face.source->get_texinfo().flags.is_hint) {
+				    face.source->visible = true;	// hints are always visible
+                }
             }
         }
     }
diff --git a/qbsp/portals.cc b/qbsp/portals.cc
index b09debcb..a10a161f 100644
--- a/qbsp/portals.cc
+++ b/qbsp/portals.cc
@@ -914,13 +914,7 @@ void MarkVisibleSides(tree_t &tree, bspbrush_t::container &brushes)
     logging::funcheader();
 
     // clear all the visible flags
-    for (auto &brush : brushes) {
-        for (auto &face : brush->sides) {
-            if (face.source) {
-                face.source->visible = false;
-            }
-        }
-    }
+    MarkBrushSidesInvisible(brushes);
 
     visible_faces_stats_t stats;
     // set visible flags on the sides that are used by portals