diff --git a/testmaps/automatated_tests.sh b/testmaps/automatated_tests.sh
index ee59a5fc..3181d3de 100755
--- a/testmaps/automatated_tests.sh
+++ b/testmaps/automatated_tests.sh
@@ -35,7 +35,8 @@ light invalid_texture_axes.map || exit 1
 # regenerate the expected hashes, but check that the .bsp's still
 # work in game at the same time.
 
-HASH_CHECK_BSPS="e1m1-bsp29.bsp \
+HASH_CHECK_BSPS="qbsp_func_detail.bsp \
+e1m1-bsp29.bsp \
 e1m1-bsp2.bsp \
 e1m1-2psb.bsp \
 e1m1-hexen2.bsp \
@@ -46,6 +47,8 @@ e1m1-bspxbrushes.bsp \
 e1m1-bsp29-onlyents.bsp \
 qbspfeatures.bsp"
 
+qbsp -noverbose               qbsp_func_detail.map                           || exit 1
+
 qbsp -noverbose               quake_map_source/E1M1.map e1m1-bsp29.bsp       || exit 1
 qbsp -noverbose         -bsp2 quake_map_source/E1M1.map e1m1-bsp2.bsp        || exit 1
 qbsp -noverbose         -2psb quake_map_source/E1M1.map e1m1-2psb.bsp        || exit 1
diff --git a/testmaps/qbsp-vis.sha256sum b/testmaps/qbsp-vis.sha256sum
index 08a9797c..d45229b0 100644
--- a/testmaps/qbsp-vis.sha256sum
+++ b/testmaps/qbsp-vis.sha256sum
@@ -1,3 +1,4 @@
+416e68cd92c817f206c11006db21bd6b0cbc330eee63bdfc66afc5152b406760 *qbsp_func_detail.bsp
 c9683e945bb01528a768653cdb79584dfbc8be6f76b712cbf0d24482a4ae3cc3 *e1m1-bsp29.bsp
 a8024b07d48abc0553ff3628d6d4cb62138f67808b425b833e5643068231c2e4 *e1m1-bsp2.bsp
 cb11d4f40d92c9d349fd11f9e4901e9cd9aa82db9971181a615c197f75f4b4a6 *e1m1-2psb.bsp
diff --git a/testmaps/qbsp.sha256sum b/testmaps/qbsp.sha256sum
index ef1c575a..ffe23378 100644
--- a/testmaps/qbsp.sha256sum
+++ b/testmaps/qbsp.sha256sum
@@ -1,3 +1,4 @@
+45d60368c37ee3523f9a1dbc140f34ae7728fc13d3cb8a43e7b22caefe46edb1 *qbsp_func_detail.bsp
 d289427e3c8a7046dce509a83401f6732a9c5f8194f8beb3eee431e33215656c *e1m1-bsp29.bsp
 85002a12afa023d850199e205f01fc58de2743f97aea9b2a22a3b0ac3ce8f7ad *e1m1-bsp2.bsp
 832ec9aff302ddfcc5ab4fe0911afec0b4d57c60e02dc1c8f61e1edbf8f53eda *e1m1-2psb.bsp
diff --git a/testmaps/qbsp_func_detail.map b/testmaps/qbsp_func_detail.map
new file mode 100644
index 00000000..05eba85b
--- /dev/null
+++ b/testmaps/qbsp_func_detail.map
@@ -0,0 +1,97 @@
+// Game: Quake
+// Format: Valve
+// entity 0
+{
+"mapversion" "220"
+"classname" "worldspawn"
+"wad" "deprecated/free_wad.wad;deprecated/fence.wad;deprecated/origin.wad;deprecated/hintskip.wad"
+"_wateralpha" "0.5"
+"_tb_def" "builtin:Quoth2.fgd"
+// brush 0
+{
+( -176 -256 64 ) ( -176 -255 64 ) ( -176 -256 65 ) tsl_wall1 [ 0 -1 0 0 ] [ 0 0 -1 -32 ] 0 1 1
+( -176 -432 64 ) ( -176 -432 65 ) ( -175 -432 64 ) tsl_wall1 [ 1 0 0 16 ] [ 0 0 -1 -32 ] 0 1 1
+( -176 -256 96 ) ( -175 -256 96 ) ( -176 -255 96 ) tsl_wall1 [ -1 0 0 -16 ] [ 0 -1 0 0 ] 0 1 1
+( -160 192 352 ) ( -160 193 352 ) ( -159 192 352 ) tsl_wall1 [ 1 0 0 16 ] [ 0 -1 0 0 ] 0 1 1
+( -160 176 80 ) ( -159 176 80 ) ( -160 176 81 ) tsl_wall1 [ -1 0 0 -16 ] [ 0 0 -1 -32 ] 0 1 1
+( -160 192 80 ) ( -160 192 81 ) ( -160 193 80 ) tsl_wall1 [ 0 1 0 0 ] [ 0 0 -1 -32 ] 0 1 1
+}
+// brush 1
+{
+( -160 176 88 ) ( -160 177 88 ) ( -160 176 89 ) tsl_wall1 [ 0 1.0000000000000002 0 -32 ] [ 0 0 -1.0000000000000002 -32 ] 0 1 1
+( -160 176 88 ) ( -160 176 89 ) ( -159 176 88 ) tsl_wall1 [ -1 0 0 -16 ] [ 0 0 -1 -32 ] 0 1 1
+( -160 176 96 ) ( -159 176 96 ) ( -160 177 96 ) tsl_wall1 [ -1.0000000000000002 0 0 -16 ] [ 0 1.0000000000000002 0 -40 ] 0 1 1
+( 288 192 352 ) ( 288 193 352 ) ( 289 192 352 ) tsl_wall1 [ -1.0000000000000002 0 0 -16 ] [ 0 -1.0000000000000002 0 48 ] 0 1 1
+( 288 192 96 ) ( 289 192 96 ) ( 288 192 97 ) tsl_wall1 [ -1 0 0 -16 ] [ 0 0 -1 -32 ] 0 1 1
+( 288 192 96 ) ( 288 192 97 ) ( 288 193 96 ) tsl_wall1 [ 0 -1.0000000000000002 0 0 ] [ 0 0 -1.0000000000000002 -32 ] 0 1 1
+}
+// brush 2
+{
+( -160 -112 96 ) ( -160 -111 96 ) ( -160 -112 97 ) orangestuff8 [ 0 1 0 -16 ] [ 0 0 -1 0 ] 0 1 1
+( -80 -432 80 ) ( -81 -432 80 ) ( -80 -432 81 ) orangestuff8 [ -1 0 0 16 ] [ 0 0 -1 0 ] 180 1 1
+( -80 -432 80 ) ( -80 -431 80 ) ( -81 -432 80 ) orangestuff8 [ 1 0 0 -16 ] [ 0 -1 0 16 ] 180 1 1
+( -160 -112 96 ) ( -161 -112 96 ) ( -160 -111 96 ) orangestuff8 [ -1 0 0 16 ] [ 0 -1 0 16 ] 180 1 1
+( -160 176 96 ) ( -160 176 97 ) ( -161 176 96 ) orangestuff8 [ 1 0 0 -16 ] [ 0 0 -1 0 ] 180 1 1
+( 288 -432 80 ) ( 288 -432 81 ) ( 288 -431 80 ) orangestuff8 [ 0 -1 0 16 ] [ 0 0 -1 0 ] 0 1 1
+}
+// brush 3
+{
+( -160 -448 88 ) ( -160 -447 88 ) ( -160 -448 89 ) tsl_wall1 [ 0 1.0000000000000002 0 80 ] [ 0 0 -1.0000000000000002 -32 ] 0 1 1
+( -160 -448 88 ) ( -160 -448 89 ) ( -159 -448 88 ) tsl_wall1 [ -1 0 0 -16 ] [ 0 0 -1 -32 ] 0 1 1
+( -160 -448 96 ) ( -159 -448 96 ) ( -160 -447 96 ) tsl_wall1 [ -1.0000000000000002 0 0 -16 ] [ 0 1.0000000000000002 0 72 ] 0 1 1
+( 288 -432 352 ) ( 288 -431 352 ) ( 289 -432 352 ) tsl_wall1 [ -1.0000000000000002 0 0 -16 ] [ 0 -1.0000000000000002 0 -64 ] 0 1 1
+( 288 -432 96 ) ( 289 -432 96 ) ( 288 -432 97 ) tsl_wall1 [ -1 0 0 -16 ] [ 0 0 -1 -32 ] 0 1 1
+( 288 -432 96 ) ( 288 -432 97 ) ( 288 -431 96 ) tsl_wall1 [ 0 -1.0000000000000002 0 -112 ] [ 0 0 -1.0000000000000002 -32 ] 0 1 1
+}
+// brush 4
+{
+( -160 -256 352 ) ( -160 -255 352 ) ( -160 -256 353 ) orangestuff8 [ 0 0 -1.0000000000000002 0 ] [ 0 -1.0000000000000002 0 0 ] 180 1 1
+( 288 -432 360 ) ( 288 -432 361 ) ( 289 -432 360 ) orangestuff8 [ -1.0000000000000002 0 0 0 ] [ 0 0 1.0000000000000002 -16 ] 180 1 1
+( -160 -256 352 ) ( -159 -256 352 ) ( -160 -255 352 ) orangestuff8 [ -1 0 0 0 ] [ 0 -1 0 0 ] 180 1 1
+( 288 176 368 ) ( 288 177 368 ) ( 289 176 368 ) orangestuff8 [ -1 0 0 0 ] [ 0 -1 0 0 ] 180 1 1
+( 288 176 360 ) ( 289 176 360 ) ( 288 176 361 ) orangestuff8 [ -1.0000000000000002 0 0 0 ] [ 0 0 1.0000000000000002 -16 ] 180 1 1
+( 288 176 360 ) ( 288 176 361 ) ( 288 177 360 ) orangestuff8 [ 0 0 1.0000000000000002 0 ] [ 0 -1.0000000000000002 0 0 ] 180 1 1
+}
+// brush 5
+{
+( 288 192 80 ) ( 288 193 80 ) ( 288 192 81 ) tsl_wall1 [ 0 1 0 0 ] [ 0 0 -1 -32 ] 0 1 1
+( 304 -432 64 ) ( 303 -432 64 ) ( 304 -432 65 ) tsl_wall1 [ -1 0 0 16 ] [ 0 0 -1 -32 ] 180 1 1
+( 304 -256 96 ) ( 304 -255 96 ) ( 303 -256 96 ) tsl_wall1 [ 1 0 0 -16 ] [ 0 -1 0 0 ] 180 1 1
+( 304 -256 352 ) ( 303 -256 352 ) ( 304 -255 352 ) tsl_wall1 [ 1 0 0 -16 ] [ 0 -1 0 0 ] 180 1 1
+( 288 176 80 ) ( 288 176 81 ) ( 287 176 80 ) tsl_wall1 [ 1 0 0 -16 ] [ 0 0 -1 -32 ] 180 1 1
+( 304 -256 64 ) ( 304 -256 65 ) ( 304 -255 64 ) tsl_wall1 [ 0 -1 0 0 ] [ 0 0 -1 -32 ] 0 1 1
+}
+// brush 6
+{
+( 56 -8 96 ) ( 56 -7 96 ) ( 56 -8 97 ) tsl_wall1 [ 0 1.0000000000000002 0 -120 ] [ 0 0 -1.0000000000000002 -32 ] 0 1 1
+( 56 -8 96 ) ( 56 -8 97 ) ( 57 -8 96 ) tsl_wall1 [ -1 0 0 -16 ] [ 0 0 -1 -32 ] 0 1 1
+( 56 -8 96 ) ( 57 -8 96 ) ( 56 -7 96 ) tsl_wall1 [ -1.0000000000000002 0 0 -16 ] [ 0 1.0000000000000002 0 -48 ] 0 1 1
+( 72 176 168 ) ( 72 177 168 ) ( 73 176 168 ) tsl_wall1 [ -1.0000000000000002 0 0 -16 ] [ 0 -1.0000000000000002 0 40 ] 0 1 1
+( 72 176 104 ) ( 73 176 104 ) ( 72 176 105 ) tsl_wall1 [ -1 0 0 -16 ] [ 0 0 -1 -32 ] 0 1 1
+( 72 176 104 ) ( 72 176 105 ) ( 72 177 104 ) tsl_wall1 [ 0 -1.0000000000000002 0 88 ] [ 0 0 -1.0000000000000002 -32 ] 0 1 1
+}
+}
+// entity 1
+{
+"classname" "light"
+"origin" "72 -136 168"
+"light" "3000"
+}
+// entity 2
+{
+"classname" "info_player_start"
+"origin" "-88 -64 120"
+}
+// entity 3
+{
+"classname" "func_detail"
+// brush 0
+{
+( 32 -120 96 ) ( 32 -119 96 ) ( 32 -120 97 ) orangestuff8 [ 0 0 -1.0000000000000002 48 ] [ 0 -1.0000000000000002 0 -24 ] 180 1 1
+( 16 -88 96 ) ( 16 -88 97 ) ( 17 -88 96 ) orangestuff8 [ -1.0000000000000002 0 0 -32 ] [ 0 0 -1.0000000000000002 48 ] 180 1 1
+( 16 -120 96 ) ( 17 -120 96 ) ( 16 -119 96 ) orangestuff8 [ -1 0 0 -32 ] [ 0 -1 0 -24 ] 180 1 1
+( 80 -40 104 ) ( 80 -39 104 ) ( 81 -40 104 ) +0fan [ -1 0 0 -32 ] [ 0 -1 0 -24 ] 180 1 1
+( 80 -24 112 ) ( 81 -24 112 ) ( 80 -24 113 ) orangestuff8 [ -1.0000000000000002 0 0 -32 ] [ 0 0 1.0000000000000002 -16 ] 180 1 1
+( 96 -40 112 ) ( 96 -40 113 ) ( 96 -39 112 ) orangestuff8 [ 0 0 1.0000000000000002 -16 ] [ 0 -1.0000000000000002 0 -24 ] 180 1 1
+}
+}