Conan.io recipe for Ogre3D.

Note We are refactoring to support conan v2. The consequence of this is that the recipe no longer supports old generators such as cmake_paths and cmake_find_package. Use CMakeToolchain and CMakeDeps instead.

How to use this package

1. Add remote to conan's package remotes

   $ conan remote add sintef https://artifactory.smd.sintef.no/artifactory/api/conan/conan-local

2. Using conanfile.txt and cmake in your project.

   Add conanfile.txt:

   [requires]
   ogre3d/[~13.5.0]@sintef/stable
   
   [options]
   ogre3d:with_sdl=True
   ogre3d:install_samples=True
   
   [tool_requires]
   cmake/[>=3.25.0]
   
   [layout]
   cmake_layout
   
   [generators]
   CMakeDeps
   CMakeToolchain
   VirtualBuildEnv
   
   

   Insert into your CMakeLists.txt something like the following lines:

   cmake_minimum_required(VERSION 3.15)
   project(TheProject CXX)
   
   find_package(Ogre3D REQUIRED)
   
   add_executable(the_executor code.cpp)
   target_link_libraries(the_executor Ogre3D::Ogre3D)

   Install and build e.g. a Release configuration (linux):

   $ conan install . -s build_type=Release -pr:b=default
   $ source build/Release/generators/conanbuild.sh
   $ cmake --preset conan-release
   $ cmake --build build/Release
   $ source build/Release/generators/deactivate_conanbuild.sh

Package components

We have added support for component targets [EXPERIMENTAL]:

• Ogre3D::Ogre3D - Depends on all components below
• Ogre3D::Components - All built component libraries, including core libraries
• Ogre3D::Plugins - All built plugin and codec libraries, depends on Ogre3D::Components
• Ogre3D::RenderSystems - All built rendersystem libraries, depends on Ogre3D::Components

Typically, you only need to link Ogre3D::Components, but if you include headers from any of the other features in your code, you need to link the corresponding targets.

Package options

Option	Allowed values	Default
with_freetype	[True, False]	False
with_sdl	[True, False]	True
with_qt	[False, "5", "6"]	False
install_samples	[True, False]	False
install_tools	[True, False]	True
bindings_csharp	[True, False]	False
bindings_java	[True, False]	False
bindings_python	[True, False]	False
rendersystem_direct3d11	[True, False]	True
rendersystem_direct3d9	[True, False]	False
rendersystem_metal	[True, False]	False
rendersystem_opengl	[True, False]	False
rendersystem_opengl3	[True, False]	True
rendersystem_opengles	[True, False]	False
rendersystem_tiny	[True, False]	False
rendersystem_vulkan	[True, False]	False
plugin_assimp	[True, False]	True
plugin_bsp	[True, False]	True
plugin_dotscene	[True, False]	True
plugin_exrcodec	[True, False]	True
plugin_freeimage	[True, False]	False
plugin_glslang	[True, False]	True
plugin_octree	[True, False]	True
plugin_particlefx	[True, False]	True
plugin_pcz	[True, False]	True
plugin_stbi	[True, False]	True
plugin_rsimage	[True, False]	False
component_bites	[True, False]	True
component_bullet	[True, False]	True
component_meshlodgenerator	[True, False]	True
component_overlay	[True, False]	True
component_overlay_imgui	[True, False]	True
component_paging	[True, False]	True
component_property	[True, False]	True
component_rtshadersystem	[True, False]	True
component_terrain	[True, False]	True
component_volume	[True, False]	True
enable_astc	[True, False]	True
enable_dds	[True, False]	True
enable_double	[True, False]	False
enable_etc	[True, False]	True
enable_gl_state_cache_support	[True, False]	False
enable_gles2_glsl_optimiser	[True, False]	False
enable_meshlod	[True, False]	True
enable_node_inherit_transform	[True, False]	False
enable_pvrtc	[True, False]	False
enable_quad_buffer_stereo	[True, False]	False
enable_viewport_orientationmode	[True, False]	False
enable_zip	[True, False]	True

To build and run tests, set tools.build:skip_test=False in global.conf, in [conf] or --conf as part of conan install. Note: Since 13.6.4 you need to set option install_samples=True in addition to the default options to actually to build and run tests. For simplicity, we require this option to be enabled for older versions too.

Known recipe issues

The recipe is only tested on Windows and Linux. It will yet not work for Macos, Emscripten and Android, or other platforms for that matter.

• OpenGL ES dependency are system installed for Debian-based linux only
• Currently, migration to conan v2 causes SWIG to not work: bindings_* options are not functional yet. A workaround is to install swig on your system and set modify recipe by setting _need_swig(self): return False

Non-exposed Ogre configuration

The conan recipe does not expose all options of the Ogre build script. The following variables currently use their default values as defined by the Ogre build system.

  OGRE_STATIC
  OGRE_PROFILING
  OGRE_RESOURCEMANAGER_STRICT         # Default (2)
  OGRE_NODELESS_POSITIONING           # Deprecated
  OGRE_BITES_STATIC_PLUGINS           # TODO
  OGRE_BUILD_PLUGIN_CG                # Deprecated
  OGRE_BUILD_XSIEXPORTER              # Needs SoftImage (unsupported)
  OGRE_BUILD_RENDERSYSTEM_METAL       # TODO for macos
  OGRE_BUILD_MSVC_MP
  OGRE_BUILD_MSVC_ZM
  OGRE_BUILD_LIBS_AS_FRAMEWORKS
  OGRE_CONFIG_STATIC_LINK_CRT
  OGRE_CONFIG_FILESYSTEM_UNICODE
  OGRE_CONFIG_THREADS                 # Default (3)
  OGRE_CONFIG_THREAD_PROVIDER         # Default (std)
  OGRE_CONFIG_ENABLE_TBB_SCHEDULER
  OGRE_CONFIG_ENABLE_GLES2_CG_SUPPORT
  OGRE_INSTALL_DOCS                   # Forced to false
  OGRE_INSTALL_PDB
  OGRE_INSTALL_VSPROPS

Future recipe work:

The following tasks are on the horizon for this recipe

• Allow static build and add option fPIC
• Ensure package info to follow native ogre's cmake and pkgconfig find scripts
• Add support for Macos, Emscripten, Android, and other platforms
• Rename package name to ogre and move to conan center?

Developer Notes

Procedure for making patch files for conanization and other fixes: - Clone the Ogre git repository and checkout the tagged release branch - Do necessary changes and create commit(s) - Create the patches using git format-patch -1 --no-renames -o ../patches/ - The flag -1 should coincide with the number of commits to create patch files of - Each patch name should be prepended with the version for which it is intended - Add each patch to the list of patches in conandata.yml - To add more patches to a release, you should first apply the existing patches and then add your fixes as additional commits.