UMaterialExpressionRuntimeVirtualTextureSample::CanReferenceTexture

Returns true if [GetReferencedTexture()](API\Runtime\Engine\Materials\UMaterialExpressionRuntimeVirtua-_2\GetReferencedTex-) / [GetReferencedTextures()](API\Runtime\Engine\Materials\UMaterialExpression\GetReferencedTextures) can ever return a valid pointer(s).