we want oidn turned on

ospray/CMakeLists.txt

@@ -29,6 +29,10 @@ if (ENABLE_OSPRAY)
     -DEMBREE_ROOT=$<$<BOOL:${EMBREE_TARGET}>:${CMAKE_BUNDLE_INSTALL_PREFIX}>
     -DISPC_ROOT=$<$<BOOL:${ISPC_TARGET}>:${CMAKE_BUNDLE_INSTALL_PREFIX}>
     $<$<BOOL:${ONETBB_TARGET}>:-DTBB_ROOT=${CMAKE_BUNDLE_INSTALL_PREFIX}>
+    # Build the OIDN-backed denoiser FrameOp module.  OpenImageDenoise_ROOT
+    # points find_package at the OIDN we built into the bundle prefix.
+    -DOSPRAY_MODULE_DENOISER=ON
+    $<$<BOOL:${OIDN_TARGET}>:-DOpenImageDenoise_ROOT=${CMAKE_BUNDLE_INSTALL_PREFIX}>
     -DOSPRAY_ENABLE_VOLUMES=OFF
     -DOSPRAY_ENABLE_APPS_BENCHMARK=OFF
     -DOSPRAY_ENABLE_APPS_TESTING=OFF

ospray/ospray.deps

@@ -1,5 +1,6 @@
 EMBREE
 ISPC
+OIDN
 ONETBB
 PATCH
 RKCOMMON