tests: add _suntexture test

docs/light.rst

@@ -1031,7 +1031,7 @@ Also called directional light. Emitted from sky faces.
 
    Equivalent to worldspawn key :worldspawn-key:`_sunlight`.
 
-.. sunlight-key:: "color" "r g b"
+.. sunlight-key:: "_color" "r g b"
 
    Equivalent to worldspawn key :worldspawn-key:`_sunlight_color`.
 

testmaps/q1_light_suntexture.map

@@ -0,0 +1,118 @@
+// Game: Quake
+// Format: Standard
+// entity 0
+{
+"classname" "worldspawn"
+"_tb_textures" "textures/e1u1"
+"_bounce" "0"
+"wad" "deprecated/free_wad.wad"
+// brush 0
+{
+( 480 1088 928 ) ( 480 1089 928 ) ( 480 1088 929 ) bolt14 0 32 0 1 1
+( 704 1088 928 ) ( 704 1088 929 ) ( 705 1088 928 ) bolt14 0 32 0 1 1
+( 704 1088 928 ) ( 705 1088 928 ) ( 704 1089 928 ) bolt14 0 0 0 1 1
+( 944 1472 944 ) ( 944 1473 944 ) ( 945 1472 944 ) bolt14 0 0 0 1 1
+( 944 1488 944 ) ( 945 1488 944 ) ( 944 1488 945 ) bolt14 0 32 0 1 1
+( 1056 1472 944 ) ( 1056 1472 945 ) ( 1056 1473 944 ) bolt14 0 32 0 1 1
+}
+// brush 1
+{
+( 720 1088 1232 ) ( 720 1089 1232 ) ( 720 1088 1233 ) bolt14 0 16 0 1 1
+( 704 1072 1232 ) ( 704 1072 1233 ) ( 705 1072 1232 ) bolt14 0 16 0 1 1
+( 704 1088 1232 ) ( 705 1088 1232 ) ( 704 1089 1232 ) bolt14 0 0 0 1 1
+( 944 1472 1248 ) ( 944 1473 1248 ) ( 945 1472 1248 ) bolt14 0 0 0 1 1
+( 944 1488 1248 ) ( 945 1488 1248 ) ( 944 1488 1249 ) bolt14 0 16 0 1 1
+( 784 1472 1248 ) ( 784 1472 1249 ) ( 784 1473 1248 ) bolt14 0 16 0 1 1
+}
+// brush 2
+{
+( 480 1072 928 ) ( 480 1073 928 ) ( 480 1072 929 ) bolt14 16 32 0 1 1
+( 704 1072 928 ) ( 704 1072 929 ) ( 705 1072 928 ) bolt14 0 32 0 1 1
+( 704 1072 928 ) ( 705 1072 928 ) ( 704 1073 928 ) bolt14 0 -16 0 1 1
+( 944 1456 1248 ) ( 944 1457 1248 ) ( 945 1456 1248 ) bolt14 0 -16 0 1 1
+( 944 1088 944 ) ( 945 1088 944 ) ( 944 1088 945 ) bolt14 0 32 0 1 1
+( 1056 1456 944 ) ( 1056 1456 945 ) ( 1056 1457 944 ) bolt14 16 32 0 1 1
+}
+// brush 3
+{
+( 480 1392 928 ) ( 480 1393 928 ) ( 480 1392 929 ) bolt14 -48 32 0 1 1
+( 832 1488 928 ) ( 832 1488 929 ) ( 833 1488 928 ) bolt14 -128 32 0 1 1
+( 832 1392 928 ) ( 833 1392 928 ) ( 832 1393 928 ) bolt14 -128 48 0 1 1
+( 1072 1776 1248 ) ( 1072 1777 1248 ) ( 1073 1776 1248 ) bolt14 -128 48 0 1 1
+( 1072 1504 944 ) ( 1073 1504 944 ) ( 1072 1504 945 ) bolt14 -128 32 0 1 1
+( 1056 1392 928 ) ( 1056 1392 929 ) ( 1056 1393 928 ) bolt14 -48 32 0 1 1
+}
+// brush 4
+{
+( 1056 1088 1056 ) ( 1056 1089 1056 ) ( 1056 1088 1057 ) bolt14 0 32 0 1 1
+( 736 1088 1056 ) ( 736 1088 1057 ) ( 737 1088 1056 ) bolt14 -32 32 0 1 1
+( 736 1088 928 ) ( 737 1088 928 ) ( 736 1089 928 ) bolt14 -32 0 0 1 1
+( 976 1472 1248 ) ( 976 1473 1248 ) ( 977 1472 1248 ) bolt14 -32 0 0 1 1
+( 976 1488 1072 ) ( 977 1488 1072 ) ( 976 1488 1073 ) bolt14 -32 32 0 1 1
+( 1072 1472 1072 ) ( 1072 1472 1073 ) ( 1072 1473 1072 ) bolt14 0 32 0 1 1
+}
+// brush 5
+{
+( 464 1088 1056 ) ( 464 1089 1056 ) ( 464 1088 1057 ) bolt14 0 32 0 1 1
+( 144 1072 1056 ) ( 144 1072 1057 ) ( 145 1072 1056 ) bolt14 48 32 0 1 1
+( 144 1088 928 ) ( 145 1088 928 ) ( 144 1089 928 ) bolt14 48 0 0 1 1
+( 384 1472 1248 ) ( 384 1473 1248 ) ( 385 1472 1248 ) bolt14 48 0 0 1 1
+( 384 1488 1072 ) ( 385 1488 1072 ) ( 384 1488 1073 ) bolt14 48 32 0 1 1
+( 480 1472 1072 ) ( 480 1472 1073 ) ( 480 1473 1072 ) bolt14 0 32 0 1 1
+}
+// brush 6
+{
+( 480 1088 1248 ) ( 480 1089 1248 ) ( 480 1088 1249 ) sky_void 0 32 0 1 1
+( 704 1072 1248 ) ( 704 1072 1249 ) ( 705 1072 1248 ) sky_void 0 32 0 1 1
+( 704 1088 1248 ) ( 705 1088 1248 ) ( 704 1089 1248 ) sky_void 0 0 0 1 1
+( 944 1472 1264 ) ( 944 1473 1264 ) ( 945 1472 1264 ) sky_void 0 0 0 1 1
+( 944 1488 1264 ) ( 945 1488 1264 ) ( 944 1488 1265 ) sky_void 0 32 0 1 1
+( 720 1472 1264 ) ( 720 1472 1265 ) ( 720 1473 1264 ) sky_void 0 32 0 1 1
+}
+// brush 7
+{
+( 784 1104 1248 ) ( 784 1105 1248 ) ( 784 1104 1249 ) sky3 -16 32 0 1 1
+( 1008 1088 1248 ) ( 1008 1088 1249 ) ( 1009 1088 1248 ) sky3 -48 32 0 1 1
+( 1008 1104 1248 ) ( 1009 1104 1248 ) ( 1008 1105 1248 ) sky3 -48 16 0 1 1
+( 1248 1488 1264 ) ( 1248 1489 1264 ) ( 1249 1488 1264 ) sky3 -48 16 0 1 1
+( 1248 1504 1264 ) ( 1249 1504 1264 ) ( 1248 1504 1265 ) sky3 -48 32 0 1 1
+( 1056 1488 1264 ) ( 1056 1488 1265 ) ( 1056 1489 1264 ) sky3 -16 32 0 1 1
+}
+}
+// entity 1
+{
+"classname" "info_player_start"
+"origin" "976 1408 968"
+"angle" "180"
+}
+// entity 2
+{
+"classname" "light"
+"origin" "568 1288 1080"
+"target" "t1"
+"_sun" "1"
+"_color" "0.25 0 0"
+"_suntexture" "sky_void"
+}
+// entity 3
+{
+"classname" "info_null"
+"origin" "504 1288 944"
+"targetname" "t1"
+}
+// entity 4
+{
+"classname" "info_null"
+"origin" "1000 1288 944"
+"targetname" "t2"
+"angle" "180"
+}
+// entity 5
+{
+"classname" "light"
+"origin" "936 1288 1080"
+"target" "t2"
+"_sun" "1"
+"_color" "0 0 1"
+"_suntexture" "sky3"
+}

tests/test_ltface.cc

@@ -868,6 +868,15 @@ TEST_CASE("q1_sunlight")
     CheckFaceLuxelAtPoint(&bsp, &bsp.dmodels[0], {49, 49, 49}, {0, 0, 0}, {0, 0, 1}, &lit);
 }
 
+TEST_CASE("q1_light_suntexture")
+{
+    INFO("different _sun 1 entities can emit from specific texture names using _suntexture");
+
+    auto [bsp, bspx, lit] = QbspVisLight_Q1("q1_light_suntexture.map", {});
+    CheckFaceLuxelAtPoint(&bsp, &bsp.dmodels[0], {35, 0, 0}, {504, 1288, 944}, {0, 0, 1}, &lit);
+    CheckFaceLuxelAtPoint(&bsp, &bsp.dmodels[0], {0, 0, 142}, {1000, 1288, 944}, {0, 0, 1}, &lit);
+}
+
 TEST_CASE("q1_light_bounce_litwater without the water")
 {
     auto [bsp, bspx] = QbspVisLight_Common("q1_light_bounce_litwater.map", {"-omitdetail"}, {"-lit", "-bounce", "4"}, runvis_t::no);