Add test for mipmap filters

Cargo.toml

@@ -1410,6 +1410,14 @@ doc-scrape-examples = true
 [package.metadata.example.no_prepass]
 hidden = true
 
+[[example]]
+name = "test_mipmap_filter"
+path = "tests/3d/test_mipmap_filter.rs"
+doc-scrape-examples = true
+
+[package.metadata.example.test_mipmap_filter]
+hidden = true
+
 # Animation
 [[example]]
 name = "animation_events"

assets/models/checkerboard/checkerboard.gltf

@@ -0,0 +1,143 @@
+{
+	"asset":{
+		"generator":"Khronos glTF Blender I/O v4.3.47",
+		"version":"2.0"
+	},
+	"extensionsUsed":[
+		"KHR_materials_unlit"
+	],
+	"scene":0,
+	"scenes":[
+		{
+			"name":"Scene",
+			"nodes":[
+				0
+			]
+		}
+	],
+	"nodes":[
+		{
+			"mesh":0,
+			"name":"Plane"
+		}
+	],
+	"materials":[
+		{
+			"doubleSided":true,
+			"extensions":{
+				"KHR_materials_unlit":{}
+			},
+			"name":"Material.001",
+			"pbrMetallicRoughness":{
+				"baseColorTexture":{
+					"index":0
+				},
+				"metallicFactor":0,
+				"roughnessFactor":0.9
+			}
+		}
+	],
+	"meshes":[
+		{
+			"name":"Plane",
+			"primitives":[
+				{
+					"attributes":{
+						"POSITION":0,
+						"NORMAL":1,
+						"TEXCOORD_0":2
+					},
+					"indices":3,
+					"material":0
+				}
+			]
+		}
+	],
+	"textures":[
+		{
+			"sampler":0,
+			"source":0
+		}
+	],
+	"images":[
+		{
+			"mimeType":"image/png",
+			"name":"checkerboard.ktx2",
+			"uri":"checkerboard.ktx2"
+		}
+	],
+	"accessors":[
+		{
+			"bufferView":0,
+			"componentType":5126,
+			"count":4,
+			"max":[
+				1,
+				0,
+				1
+			],
+			"min":[
+				-1,
+				0,
+				-1
+			],
+			"type":"VEC3"
+		},
+		{
+			"bufferView":1,
+			"componentType":5126,
+			"count":4,
+			"type":"VEC3"
+		},
+		{
+			"bufferView":2,
+			"componentType":5126,
+			"count":4,
+			"type":"VEC2"
+		},
+		{
+			"bufferView":3,
+			"componentType":5123,
+			"count":6,
+			"type":"SCALAR"
+		}
+	],
+	"bufferViews":[
+		{
+			"buffer":0,
+			"byteLength":48,
+			"byteOffset":0,
+			"target":34962
+		},
+		{
+			"buffer":0,
+			"byteLength":48,
+			"byteOffset":48,
+			"target":34962
+		},
+		{
+			"buffer":0,
+			"byteLength":32,
+			"byteOffset":96,
+			"target":34962
+		},
+		{
+			"buffer":0,
+			"byteLength":12,
+			"byteOffset":128,
+			"target":34963
+		}
+	],
+	"samplers":[
+		{
+			"magFilter":9729,
+			"minFilter":9987
+		}
+	],
+	"buffers":[
+		{
+			"byteLength":140,
+			"uri":"checkerboard.bin"
+		}
+	]
+}