adding vtk to superbuild

Author: basisunus

Superbuild/Superbuild.cmake

@@ -105,6 +105,10 @@ OPTION(WITH_OSPRAY "Build Ospray." OFF)
 # Configure data
 OPTION(BUILD_WITH_SCIRUN_DATA "Svn checkout data" OFF)
 
+###########################################
+# Configure vtk
+OPTION(WITH_VTK "build VTK" ON)
+
 ###########################################
 # Configure Windows executable to run with
 # or without the console
@@ -294,6 +298,10 @@ ENDIF()
 
 ADD_EXTERNAL( ${SUPERBUILD_DIR}/BoostExternal.cmake Boost_external )
 
+IF(WITH_VTK)
+  ADD_EXTERNAL( ${SUPERBUILD_DIR}/VtkExternal.cmake VTK_external )
+ENDIF()
+
 ###########################################
 # Download external data sources
 OPTION(DOWNLOAD_TOOLKITS "Download toolkit repositories." ON)
@@ -320,6 +328,7 @@ SET(SCIRUN_CACHE_ARGS
     "-DUSER_PYTHON_VERSION_MINOR:STRING=${USER_PYTHON_VERSION_MINOR}"
     "-DWITH_TETGEN:BOOL=${WITH_TETGEN}"
     "-DWITH_OSPRAY:BOOL=${WITH_OSPRAY}"
+    "-DWITH_VTK:BOOL=${WITH_VTK}"
     "-DREGENERATE_MODULE_FACTORY_CODE:BOOL=${REGENERATE_MODULE_FACTORY_CODE}"
     "-DGENERATE_MODULE_FACTORY_CODE:BOOL=${GENERATE_MODULE_FACTORY_CODE}"
     "-DEigen_DIR:PATH=${Eigen_DIR}"
@@ -357,6 +366,12 @@ IF(WITH_OSPRAY)
   )
 ENDIF()
 
+IF(WITH_VTK)
+  LIST(APPEND SCIRUN_CACHE_ARGS
+    "-DVTK_DIR:PATH=${VTK_INSTALL_DIR}/lib/cmake/vtk-9.6"
+  )
+ENDIF()
+
 IF(WIN32)
   LIST(APPEND SCIRUN_CACHE_ARGS
     "-DSCIRUN_SHOW_CONSOLE:BOOL=${SCIRUN_SHOW_CONSOLE}"

Superbuild/VtkExternal.cmake

@@ -0,0 +1,98 @@
+#  For more information, please see: http://software.sci.utah.edu
+#
+#  The MIT License
+#
+#  Copyright (c) 2026 Scientific Computing and Imaging Institute,
+#  University of Utah.
+#
+#
+#  Permission is hereby granted, free of charge, to any person obtaining a
+#  copy of this software and associated documentation files (the "Software"),
+#  to deal in the Software without restriction, including without limitation
+#  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#  and/or sell copies of the Software, and to permit persons to whom the
+#  Software is furnished to do so, subject to the following conditions:
+#
+#  The above copyright notice and this permission notice shall be included
+#  in all copies or substantial portions of the Software.
+#
+#  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+#  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+#  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#  DEALINGS IN THE SOFTWARE.
+
+SET_PROPERTY(DIRECTORY PROPERTY "EP_BASE" ${ep_base})
+
+# ---- VTK version ----
+set(vtk_GIT_TAG "v9.6.1")
+
+# ---- Dependencies ----
+set(vtk_DEPENDENCIES)
+LIST(APPEND vtk_DEPENDENCIES
+  LibPNG_external
+  Zlib_external
+)
+
+# ---- Pull dependency install dirs ----
+ExternalProject_Get_Property(Zlib_external INSTALL_DIR)
+set(ZLIB_INSTALL_DIR ${INSTALL_DIR})
+
+ExternalProject_Get_Property(LibPNG_external INSTALL_DIR)
+set(LIBPNG_INSTALL_DIR ${INSTALL_DIR})
+
+# ---- ExternalProject ----
+ExternalProject_Add(VTK_external
+  DEPENDS ${vtk_DEPENDENCIES}
+
+  GIT_REPOSITORY "https://gitlab.kitware.com/vtk/vtk.git"
+  GIT_TAG ${vtk_GIT_TAG}
+
+  GIT_SUBMODULES ""
+  GIT_SUBMODULES_RECURSE OFF
+
+  CMAKE_CACHE_ARGS
+    -DCMAKE_VERBOSE_MAKEFILE:BOOL=${CMAKE_VERBOSE_MAKEFILE}
+    -DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
+    -DCMAKE_POSITION_INDEPENDENT_CODE:BOOL=ON
+
+    # ---- Core build options ----
+    -DBUILD_SHARED_LIBS:BOOL=ON
+    -DVTK_BUILD_ALL_MODULES:BOOL=OFF
+    -DVTK_GROUP_ENABLE_StandAlone:STRING=WANT
+    -DVTK_GROUP_ENABLE_Rendering:STRING=WANT
+    -DVTK_GROUP_ENABLE_Imaging:STRING=WANT
+    -DVTK_GROUP_ENABLE_IO:STRING=WANT
+
+    # ---- External dependency control ----
+    -DVTK_MODULE_USE_EXTERNAL_VTK_zlib:BOOL=ON
+    -DVTK_MODULE_USE_EXTERNAL_VTK_png:BOOL=ON
+
+    # ---- Help VTK locate them (minimal first pass) ----
+    -DZLIB_ROOT:PATH=${ZLIB_INSTALL_DIR}
+    -DPNG_ROOT:PATH=${LIBPNG_INSTALL_DIR}
+
+    # ---- Wrapping ----
+    -DVTK_WRAP_PYTHON:BOOL=OFF
+    -DVTK_WRAP_JAVA:BOOL=OFF
+
+    # ---- Superbuild hygiene ----
+    -DVTK_BUILD_TESTING:BOOL=OFF
+    -DVTK_BUILD_EXAMPLES:BOOL=OFF
+
+    # ---- Install ----
+    -DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR>
+)
+
+# ---- Export build dir ----
+ExternalProject_Get_Property(VTK_external BINARY_DIR)
+set(VTK_BUILD_DIR ${BINARY_DIR} CACHE PATH "")
+
+# ---- Export install dir ----
+ExternalProject_Get_Property(VTK_external INSTALL_DIR)
+set(VTK_INSTALL_DIR ${INSTALL_DIR} CACHE PATH "")
+
+message(STATUS "VTK_BUILD_DIR: ${VTK_BUILD_DIR}")
+message(STATUS "VTK_INSTALL_DIR: ${VTK_INSTALL_DIR}")