From de097849adfa7a1ede08d3d0cce0e6bdf0de6482 Mon Sep 17 00:00:00 2001
From: Garux <garux@mail.ru>
Date: Fri, 28 Mar 2025 03:14:08 +0500
Subject: [PATCH] * handle patch lodbounds in -shift and -scale

---
 docs/changelog-custom.txt           |  1 +
 tools/quake3/q3map2/convert_bsp.cpp | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/docs/changelog-custom.txt b/docs/changelog-custom.txt
index 471f3be1..e815fb04 100644
--- a/docs/changelog-custom.txt
+++ b/docs/changelog-custom.txt
@@ -181,6 +181,7 @@ Q3map2:
 	* fix deformvertexes autosprite2 on brushes and models
 	* tighten FilterPatchIntoTree() regarding to even (pink) points
 	* fix tiny structural brushes breaking bsp tree
+	* handle patch lodbounds in -shift and -scale
 
 
 
diff --git a/tools/quake3/q3map2/convert_bsp.cpp b/tools/quake3/q3map2/convert_bsp.cpp
index d4c67017..b97d50ff 100644
--- a/tools/quake3/q3map2/convert_bsp.cpp
+++ b/tools/quake3/q3map2/convert_bsp.cpp
@@ -469,6 +469,15 @@ int ScaleBSPMain( Args& args ){
 		leaf.minmax.maxs = scale * leaf.minmax.maxs;
 	}
 
+	/* scale patch lodbounds */
+	for ( bspDrawSurface_t& surf : bspDrawSurfaces )
+	{
+		if ( surf.surfaceType == MST_PATCH ){
+			surf.lightmapVecs[0] *= scale;
+			surf.lightmapVecs[1] *= scale;
+		}
+	}
+
 	if ( texscale ) {
 		Sys_Printf( "Using texture unlocking (and probably breaking texture alignment a lot)\n" );
 		old_xyzst = bspDrawVerts;
@@ -628,6 +637,15 @@ int ShiftBSPMain( Args& args ){
 		leaf.minmax.maxs += shift;
 	}
 
+	/* shift patch lodbounds */
+	for ( bspDrawSurface_t& surf : bspDrawSurfaces )
+	{
+		if ( surf.surfaceType == MST_PATCH ){
+			surf.lightmapVecs[0] += shift;
+			surf.lightmapVecs[1] += shift;
+		}
+	}
+
 	/* shift drawverts */
 	for ( bspDrawVert_t& vert : bspDrawVerts )
 	{