fix default

Assets/UniGLTF/Runtime/UniGLTF/IO/TextureIO/TextureSamplerUtil.cs

@@ -88,7 +88,6 @@ namespace UniGLTF
                     return (FilterMode.Point, false);
 
                 // mipmap: disable
-                case glFilter.NONE:
                 case glFilter.LINEAR:
                     return (FilterMode.Bilinear, false);
 
@@ -110,6 +109,10 @@ namespace UniGLTF
                 case glFilter.LINEAR_MIPMAP_LINEAR:
                     return (FilterMode.Trilinear, true);
 
+                // default
+                case glFilter.NONE:
+                    return (FilterMode.Bilinear, true);
+
                 default:
                     throw new NotImplementedException();
             }

Assets/VRMShaders/GLTF/IO/Runtime/SamplerParam.cs

@@ -18,7 +18,7 @@ namespace VRMShaders
             FilterMode = FilterMode.Bilinear,
             WrapModesU = TextureWrapMode.Repeat,
             WrapModesV = TextureWrapMode.Repeat,
-            EnableMipMap = false,
+            EnableMipMap = true,
         };
     }