Split out the null case from the isReadable case

Author: keveleigh

Assets/MRTK/Core/Definitions/InputSystem/MixedRealityRaycastHit.cs

@@ -34,7 +34,13 @@ public MixedRealityRaycastHit(bool raycastValid, RaycastHit hitInfo)
                 triangleIndex = hitInfo.triangleIndex;
 
                 MeshCollider meshCollider = hitInfo.collider as MeshCollider;
-                if (meshCollider == null || meshCollider.sharedMesh.isReadable)
+                if (meshCollider == null)
+                {
+                    textureCoord = hitInfo.textureCoord;
+                    textureCoord2 = hitInfo.textureCoord2;
+                    lightmapCoord = hitInfo.lightmapCoord;
+                }
+                else if (meshCollider.sharedMesh.isReadable)
                 {
 #if UNITY_2019_4_OR_NEWER
                     if (meshCollider.sharedMesh.HasVertexAttribute(UnityEngine.Rendering.VertexAttribute.TexCoord0))