message: Use OIDN v1.2.1
diff: @@ -60,7 +60,7 @@ option(BUILD_EMBREE_FROM_SOURCE "Build Embree or use pre-built version?" ON)
  set(BUILD_OPENVKL_VERSION "devel" CACHE STRING "Which version of OpenVKL to build?")
  option(BUILD_OIDN "Build OpenImageDenoise as a part of the superbuild." OFF)
  -set(BUILD_OIDN_VERSION "v1.2.0" CACHE STRING "Which version of OpenImageDenoise to build?")
  +set(BUILD_OIDN_VERSION "v1.2.1" CACHE STRING "Which version of OpenImageDenoise to build?")
  option(BUILD_OIDN_FROM_SOURCE "Build OpenImageDenoise or use pre-built version?" OFF)
  option(BUILD_GLFW "Build glfw for OSPRay examples or use one in existing environment?" ON)
  