From 6e75be33ec0bcfea8d045a5a5ea68e162abe0b97 Mon Sep 17 00:00:00 2001
From: Li-Ta Lo <ollie@lanl.gov>
Date: Wed, 10 May 2023 17:31:50 -0600
Subject: [PATCH] unique_ptr know if itself is valid

---
 vtkm/rendering/raytracing/ScalarRenderer.cxx | 3 +--
 vtkm/rendering/raytracing/ScalarRenderer.h   | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/vtkm/rendering/raytracing/ScalarRenderer.cxx b/vtkm/rendering/raytracing/ScalarRenderer.cxx
index 9549c5017..f5d12d847 100644
--- a/vtkm/rendering/raytracing/ScalarRenderer.cxx
+++ b/vtkm/rendering/raytracing/ScalarRenderer.cxx
@@ -217,7 +217,6 @@ public:
 void ScalarRenderer::SetShapeIntersector(std::unique_ptr<ShapeIntersector>&& intersector)
 {
   Intersector = std::move(intersector);
-  IntersectorValid = true;
 }
 
 void ScalarRenderer::AddField(const vtkm::cont::Field& scalarField)
@@ -265,7 +264,7 @@ void ScalarRenderer::RenderOnDevice(Ray<Precision>& rays,
   {
     throw vtkm::cont::ErrorBadValue("ScalarRenderer: no fields added");
   }
-  if (!IntersectorValid)
+  if (!Intersector)
   {
     throw vtkm::cont::ErrorBadValue("ScalarRenderer: intersector never set");
   }
diff --git a/vtkm/rendering/raytracing/ScalarRenderer.h b/vtkm/rendering/raytracing/ScalarRenderer.h
index 7d2e41284..aacecc6c8 100644
--- a/vtkm/rendering/raytracing/ScalarRenderer.h
+++ b/vtkm/rendering/raytracing/ScalarRenderer.h
@@ -33,7 +33,6 @@ private:
 protected:
   std::unique_ptr<ShapeIntersector> Intersector;
   std::vector<vtkm::cont::Field> Fields;
-  bool IntersectorValid = false;
 
   template <typename Precision>
   void RenderOnDevice(Ray<Precision>& rays,