diff --git a/Rendering/RayTracing/vtkOSPRayPass.cxx b/Rendering/RayTracing/vtkOSPRayPass.cxx
index b9c317270c5c7bfda8cc9758e70df59273eee91c..423f207d88dde702ac863471bc9330d117039978 100644
--- a/Rendering/RayTracing/vtkOSPRayPass.cxx
+++ b/Rendering/RayTracing/vtkOSPRayPass.cxx
@@ -80,9 +80,10 @@ public:
       auto bgMode = vtkOSPRayRendererNode::GetBackgroundMode(ren);
       bool useHdri = ren->GetUseImageBasedLighting() && ren->GetEnvironmentTexture() &&
         bgMode == vtkOSPRayRendererNode::Environment;
-      ss << "gl_FragData[0] = vec4(pow(color.rgb, vec3(1.0/2.2)), "
-         << (useHdri ? "1.0)" : "color.a)") << ";\n";
+      //ss << "gl_FragData[0] = vec4(pow(color.rgb, vec3(1.0/2.2)), "
+      //   << (useHdri ? "1.0)" : "color.a)") << ";\n";
       this->BgMode = bgMode;
+      ss << "gl_FragData[0] = color;\n";
     }
     else
     {