diff --git a/public/static/meshes/quiz/arrow.ktx2 b/public/static/meshes/quiz/arrow.ktx2
new file mode 100644
index 0000000..0179966
Binary files /dev/null and b/public/static/meshes/quiz/arrow.ktx2 differ
diff --git a/public/static/meshes/quiz/bricks-d.ktx2 b/public/static/meshes/quiz/bricks-d.ktx2
new file mode 100644
index 0000000..620e3e0
Binary files /dev/null and b/public/static/meshes/quiz/bricks-d.ktx2 differ
diff --git a/public/static/meshes/quiz/bricks-n.ktx2 b/public/static/meshes/quiz/bricks-n.ktx2
new file mode 100644
index 0000000..fa090e2
Binary files /dev/null and b/public/static/meshes/quiz/bricks-n.ktx2 differ
diff --git a/public/static/meshes/quiz/grass-d.ktx2 b/public/static/meshes/quiz/grass-d.ktx2
new file mode 100644
index 0000000..e559f19
Binary files /dev/null and b/public/static/meshes/quiz/grass-d.ktx2 differ
diff --git a/public/static/meshes/quiz/grass-n.ktx2 b/public/static/meshes/quiz/grass-n.ktx2
new file mode 100644
index 0000000..a1d83ba
Binary files /dev/null and b/public/static/meshes/quiz/grass-n.ktx2 differ
diff --git a/public/static/meshes/quiz/island-d.ktx2 b/public/static/meshes/quiz/island-d.ktx2
new file mode 100644
index 0000000..8a132a3
Binary files /dev/null and b/public/static/meshes/quiz/island-d.ktx2 differ
diff --git a/public/static/meshes/quiz/island-grass-d.ktx2 b/public/static/meshes/quiz/island-grass-d.ktx2
new file mode 100644
index 0000000..3db5dee
Binary files /dev/null and b/public/static/meshes/quiz/island-grass-d.ktx2 differ
diff --git a/public/static/meshes/quiz/island-grass-n.ktx2 b/public/static/meshes/quiz/island-grass-n.ktx2
new file mode 100644
index 0000000..0133508
Binary files /dev/null and b/public/static/meshes/quiz/island-grass-n.ktx2 differ
diff --git a/public/static/meshes/quiz/paving-d.ktx2 b/public/static/meshes/quiz/paving-d.ktx2
new file mode 100644
index 0000000..dc5b766
Binary files /dev/null and b/public/static/meshes/quiz/paving-d.ktx2 differ
diff --git a/public/static/meshes/quiz/paving-n.ktx2 b/public/static/meshes/quiz/paving-n.ktx2
new file mode 100644
index 0000000..d3e55a2
Binary files /dev/null and b/public/static/meshes/quiz/paving-n.ktx2 differ
diff --git a/public/static/meshes/quiz/quiz-fortress.bin b/public/static/meshes/quiz/quiz-fortress.bin
index 2573a22..91b77db 100644
Binary files a/public/static/meshes/quiz/quiz-fortress.bin and b/public/static/meshes/quiz/quiz-fortress.bin differ
diff --git a/public/static/meshes/quiz/quiz-fortress.gltf b/public/static/meshes/quiz/quiz-fortress.gltf
index 1937395..3015514 100644
--- a/public/static/meshes/quiz/quiz-fortress.gltf
+++ b/public/static/meshes/quiz/quiz-fortress.gltf
@@ -4,16 +4,35 @@
 		"version":"2.0"
 	},
 	"extensionsUsed":[
-		"KHR_draco_mesh_compression",
-		"EXT_texture_webp"
+		"KHR_texture_basisu"
 	],
 	"extensionsRequired":[
-		"KHR_draco_mesh_compression",
-		"EXT_texture_webp"
+		"KHR_texture_basisu"
 	],
 	"scene":0,
 	"scenes":[
 		{
+			"extras":{
+				"KTX2ExportProperties":{
+					"enabled":1,
+					"basecolor":{
+						"basisu":{
+							"etc1s":{}
+						},
+						"astc":{}
+					},
+					"normal":{
+						"basisu":{
+							"uastc":{}
+						},
+						"astc":{}
+					},
+					"orm":{},
+					"other":{},
+					"generate_mipmaps":1,
+					"create_fallback":0
+				}
+			},
 			"name":"Scene",
 			"nodes":[
 				0,
@@ -26,14 +45,23 @@
 	],
 	"nodes":[
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+			},
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 			"name":"floor"
 		},
 		{
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+			},
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 			"name":"tunnel"
 		},
 		{
+			"extras":{
+				"io.maxDistance":45
+			},
 			"mesh":2,
 			"name":"door"
 		},
@@ -42,6 +70,9 @@
 			"name":"surface"
 		},
 		{
+			"extras":{
+				"io.maxDistance":45
+			},
 			"mesh":4,
 			"name":"wall"
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@@ -112,19 +143,8 @@
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-					},
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-					"material":0,
-					"mode":4
+					"material":0
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@@ -137,19 +157,8 @@
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-					"material":1,
-					"mode":4
+					"material":1
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@@ -157,19 +166,8 @@
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-					"material":0,
-					"mode":4
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@@ -177,19 +175,8 @@
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-								"TEXCOORD_0":2
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 					"indices":14,
-					"material":2,
-					"mode":4
+					"material":2
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@@ -202,19 +189,8 @@
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-								"TEXCOORD_0":2
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-					},
 					"indices":3,
-					"material":1,
-					"mode":4
+					"material":1
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@@ -227,19 +203,8 @@
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-								"TEXCOORD_0":2
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-						}
-					},
 					"indices":3,
-					"material":3,
-					"mode":4
+					"material":3
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@@ -252,19 +217,8 @@
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-					"extensions":{
-						"KHR_draco_mesh_compression":{
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-							"attributes":{
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-								"TEXCOORD_0":2
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-						}
-					},
 					"indices":24,
-					"material":2,
-					"mode":4
+					"material":2
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 		}
@@ -272,7 +226,7 @@
 	"textures":[
 		{
 			"extensions":{
-				"EXT_texture_webp":{
+				"KHR_texture_basisu":{
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@@ -280,7 +234,7 @@
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 		{
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-				"EXT_texture_webp":{
+				"KHR_texture_basisu":{
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@@ -288,7 +242,7 @@
 		},
 		{
 			"extensions":{
-				"EXT_texture_webp":{
+				"KHR_texture_basisu":{
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@@ -296,7 +250,7 @@
 		},
 		{
 			"extensions":{
-				"EXT_texture_webp":{
+				"KHR_texture_basisu":{
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@@ -304,7 +258,7 @@
 		},
 		{
 			"extensions":{
-				"EXT_texture_webp":{
+				"KHR_texture_basisu":{
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@@ -312,7 +266,7 @@
 		},
 		{
 			"extensions":{
-				"EXT_texture_webp":{
+				"KHR_texture_basisu":{
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@@ -320,7 +274,7 @@
 		},
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-				"EXT_texture_webp":{
+				"KHR_texture_basisu":{
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 			},
@@ -329,43 +283,44 @@
 	],
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 		{
-			"mimeType":"image/webp",
+			"mimeType":"image/ktx2",
 			"name":"paving-n",
-			"uri":"paving-n.webp"
+			"uri":"paving-n.ktx2"
 		},
 		{
-			"mimeType":"image/webp",
+			"mimeType":"image/ktx2",
 			"name":"paving-d",
-			"uri":"paving-d.webp"
+			"uri":"paving-d.ktx2"
 		},
 		{
-			"mimeType":"image/webp",
+			"mimeType":"image/ktx2",
 			"name":"arrow",
-			"uri":"arrow.webp"
+			"uri":"arrow.ktx2"
 		},
 		{
-			"mimeType":"image/webp",
+			"mimeType":"image/ktx2",
 			"name":"bricks-n",
-			"uri":"bricks-n.webp"
+			"uri":"bricks-n.ktx2"
 		},
 		{
-			"mimeType":"image/webp",
+			"mimeType":"image/ktx2",
 			"name":"bricks-d",
-			"uri":"bricks-d.webp"
+			"uri":"bricks-d.ktx2"
 		},
 		{
-			"mimeType":"image/webp",
+			"mimeType":"image/ktx2",
 			"name":"grass-n",
-			"uri":"grass-n.webp"
+			"uri":"grass-n.ktx2"
 		},
 		{
-			"mimeType":"image/webp",
+			"mimeType":"image/ktx2",
 			"name":"grass-d",
-			"uri":"grass-d.webp"
+			"uri":"grass-d.ktx2"
 		}
 	],
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@@ -381,21 +336,25 @@
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@@ -411,16 +370,19 @@
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@@ -436,21 +398,25 @@
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@@ -466,21 +432,25 @@
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@@ -496,16 +466,19 @@
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@@ -521,16 +494,19 @@
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@@ -546,16 +522,19 @@
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@@ -564,38 +543,153 @@
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@@ -606,7 +700,7 @@
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 	"buffers":[
 		{
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 			"uri":"quiz-fortress.bin"
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diff --git a/public/static/meshes/quiz/quiz-on-air.bin b/public/static/meshes/quiz/quiz-on-air.bin
index 5e24271..7606847 100644
Binary files a/public/static/meshes/quiz/quiz-on-air.bin and b/public/static/meshes/quiz/quiz-on-air.bin differ
diff --git a/public/static/meshes/quiz/quiz-on-air.gltf b/public/static/meshes/quiz/quiz-on-air.gltf
index 47ac939..d614cfb 100644
--- a/public/static/meshes/quiz/quiz-on-air.gltf
+++ b/public/static/meshes/quiz/quiz-on-air.gltf
@@ -4,42 +4,47 @@
 		"version":"2.0"
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-		"KHR_draco_mesh_compression",
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+		"KHR_texture_basisu"
 	],
 	"extensionsRequired":[
-		"KHR_draco_mesh_compression",
-		"EXT_texture_webp"
+		"KHR_texture_basisu"
 	],
 	"scene":0,
 	"scenes":[
 		{
+			"extras":{
+				"KTX2ExportProperties":{
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+					"basecolor":{},
+					"normal":{},
+					"orm":{},
+					"other":{},
+					"generate_mipmaps":1,
+					"create_fallback":0
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+			},
 			"name":"Scene",
 			"nodes":[
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 				1,
 				2,
-				3,
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+				3
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 	],
 	"nodes":[
 		{
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 			"mesh":0,
 			"name":"door"
 		},
 		{
+			"extras":{
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+			},
 			"mesh":1,
-			"name":"tunnel.old",
-			"translation":[
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@@ -68,21 +79,6 @@
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@@ -379,38 +268,39 @@
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diff --git a/public/static/meshes/quiz/wood-siding-d.ktx2 b/public/static/meshes/quiz/wood-siding-d.ktx2
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index 0000000..2942f1c
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diff --git a/public/static/meshes/quiz/wood-siding-n.ktx2 b/public/static/meshes/quiz/wood-siding-n.ktx2
new file mode 100644
index 0000000..e8fe8aa
Binary files /dev/null and b/public/static/meshes/quiz/wood-siding-n.ktx2 differ