diff --git a/build_files/cmake/macros.cmake b/build_files/cmake/macros.cmake
index 56168258d79..4ffeb6b316f 100644
--- a/build_files/cmake/macros.cmake
+++ b/build_files/cmake/macros.cmake
@@ -223,6 +223,20 @@ function(blender_target_include_dirs_sys
   blender_target_include_dirs_impl(${target} TRUE "${_ALL_INCS}")
 endfunction()
 
+# Enable unity build for the given target.
+function(blender_set_target_unity_build target batch_size)
+  if(WITH_UNITY_BUILD)
+    set_target_properties(${target} PROPERTIES
+      UNITY_BUILD ON
+      UNITY_BUILD_BATCH_SIZE ${batch_size}
+    )
+    if(WITH_NINJA_POOL_JOBS AND NINJA_MAX_NUM_PARALLEL_COMPILE_HEAVY_JOBS)
+      # Unity builds are typically heavy.
+      set_target_properties(${target} PROPERTIES JOB_POOL_COMPILE compile_heavy_job_pool)
+    endif()
+  endif()
+endfunction()
+
 # Set include paths for header files included with "*.h" syntax.
 # This enables auto-complete suggestions for user header files on Xcode.
 # Build process is not affected since the include paths are the same
diff --git a/source/blender/compositor/CMakeLists.txt b/source/blender/compositor/CMakeLists.txt
index 175fd134feb..57ecc78491d 100644
--- a/source/blender/compositor/CMakeLists.txt
+++ b/source/blender/compositor/CMakeLists.txt
@@ -648,10 +648,7 @@ if(WITH_COMPOSITOR_CPU)
 
   blender_add_lib(bf_compositor "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
 
-  if(WITH_UNITY_BUILD)
-    set_target_properties(bf_compositor PROPERTIES UNITY_BUILD ON)
-    set_target_properties(bf_compositor PROPERTIES UNITY_BUILD_BATCH_SIZE 10)
-  endif()
+  blender_set_target_unity_build(bf_compositor 10)
 
   if(COMMAND target_precompile_headers)
     target_precompile_headers(bf_compositor PRIVATE COM_precomp.h)
diff --git a/source/blender/nodes/composite/CMakeLists.txt b/source/blender/nodes/composite/CMakeLists.txt
index 78303b4cc40..90acb4b0d40 100644
--- a/source/blender/nodes/composite/CMakeLists.txt
+++ b/source/blender/nodes/composite/CMakeLists.txt
@@ -159,10 +159,7 @@ endif()
 
 blender_add_lib(bf_nodes_composite "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
 
-if(WITH_UNITY_BUILD)
-  set_target_properties(bf_nodes_composite PROPERTIES UNITY_BUILD ON)
-  set_target_properties(bf_nodes_composite PROPERTIES UNITY_BUILD_BATCH_SIZE 10)
-endif()
+blender_set_target_unity_build(bf_nodes_composite 10)
 
 # RNA_prototypes.h
 add_dependencies(bf_nodes_composite bf_rna)
diff --git a/source/blender/nodes/function/CMakeLists.txt b/source/blender/nodes/function/CMakeLists.txt
index 4de72835da4..54c082b0134 100644
--- a/source/blender/nodes/function/CMakeLists.txt
+++ b/source/blender/nodes/function/CMakeLists.txt
@@ -72,7 +72,4 @@ list(APPEND LIB
 blender_add_lib(bf_nodes_function "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
 target_link_libraries(bf_nodes_functions_generated bf_nodes_function)
 
-if(WITH_UNITY_BUILD)
-  set_target_properties(bf_nodes_function PROPERTIES UNITY_BUILD ON)
-  set_target_properties(bf_nodes_function PROPERTIES UNITY_BUILD_BATCH_SIZE 10)
-endif()
+blender_set_target_unity_build(bf_nodes_function 10)
diff --git a/source/blender/nodes/geometry/CMakeLists.txt b/source/blender/nodes/geometry/CMakeLists.txt
index e380add5ad2..7f4f3d850f9 100644
--- a/source/blender/nodes/geometry/CMakeLists.txt
+++ b/source/blender/nodes/geometry/CMakeLists.txt
@@ -285,10 +285,7 @@ list(APPEND LIB
 blender_add_lib(bf_nodes_geometry "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
 target_link_libraries(bf_nodes_geometry_generated bf_nodes_geometry)
 
-if(WITH_UNITY_BUILD)
-  set_target_properties(bf_nodes_geometry PROPERTIES UNITY_BUILD ON)
-  set_target_properties(bf_nodes_geometry PROPERTIES UNITY_BUILD_BATCH_SIZE 10)
-endif()
+blender_set_target_unity_build(bf_nodes_geometry 10)
 
 # RNA_prototypes.h
 add_dependencies(bf_nodes_geometry bf_rna)
diff --git a/source/blender/nodes/shader/CMakeLists.txt b/source/blender/nodes/shader/CMakeLists.txt
index 845fe16a420..5578c5f4a7b 100644
--- a/source/blender/nodes/shader/CMakeLists.txt
+++ b/source/blender/nodes/shader/CMakeLists.txt
@@ -185,10 +185,7 @@ endif()
 
 blender_add_lib(bf_nodes_shader "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
 
-if(WITH_UNITY_BUILD)
-  set_target_properties(bf_nodes_shader PROPERTIES UNITY_BUILD ON)
-  set_target_properties(bf_nodes_shader PROPERTIES UNITY_BUILD_BATCH_SIZE 10)
-endif()
+blender_set_target_unity_build(bf_nodes_shader 10)
 
 # RNA_prototypes.h
 add_dependencies(bf_nodes_shader bf_rna)