glTF Scene Export

* Update fetch script
* Add gltf2
Don't include extra file for assimp.


Add Assimp GLTF2 exporter.

Convert Scene to GLTF2.

Use Assimp to export MeshInstances, CSGShape and GridMaps to GLTF2.

The is no material or animation support.

Implement both exporting and merging scenes.

The Scene Convert to GLTF2 is put into the tools menu.
Rename to GLTF2 export.


Able to build gltf2 exports again.


Remove scaling code in glTF2 export.


Update assimp.


Attempt at saving skeletons.


Update assimp.

modules/assimp/SCsub

@@ -6,23 +6,20 @@ Import('env_modules')
 env_assimp = env_modules.Clone()
 env_assimp.Prepend(CPPPATH=['#thirdparty/assimp'])
 env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/include'])
-env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/code/Importer/IFC'])
 env_assimp.Prepend(CPPPATH=['#thirdparty/misc'])
 env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/code'])
 env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/common'])
-env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/contrib/irrXML/'])
-env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/contrib/unzip/'])
-env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/code/Importer/STEPParser'])
-env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/'])
-env_assimp.Prepend(CPPPATH=['#thirdparty/zlib/'])
-env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/contrib/openddlparser/include'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/contrib/irrXML'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/contrib/unzip'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/contrib'])
 env_assimp.Prepend(CPPPATH=['#thirdparty/assimp/contrib/rapidjson/include'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/assimp'])
+env_assimp.Prepend(CPPPATH=['#thirdparty/zlib'])
 env_assimp.Prepend(CPPPATH=['.'])
 #env_assimp.Append(CPPDEFINES=['ASSIMP_DOUBLE_PRECISION']) # TODO default to what godot is compiled with for future double support
 env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_BOOST_WORKAROUND'])
 env_assimp.Append(CPPDEFINES=['OPENDDLPARSER_BUILD'])
 env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_OWN_ZLIB'])
-env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_EXPORT'])
 env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_X_IMPORTER'])
 env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_AMF_IMPORTER'])
 env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_3DS_IMPORTER'])
@@ -69,12 +66,26 @@ env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_ASSBIN_IMPORTER'])
 env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_C4D_IMPORTER'])
 env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_3MF_IMPORTER'])
 env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_X3D_IMPORTER'])
-env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_GLTF_IMPORTER'])
-env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_GLTF2_IMPORTER'])
-env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_SINGLETHREADED'])
 env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_M3D_IMPORTER'])
 env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_MMD_IMPORTER'])
-
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_SINGLETHREADED'])
+#env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_GLTF_IMPORTER'])
+#env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_GLTF2_IMPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_COLLADA_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_X_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_STEP_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_OBJ_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_STL_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_PLY_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_3DS_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_M3D_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_ASSBIN_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_ASSXML_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_X3D_EXPORTER'])
+#env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_GLTF_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_FBX_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_3MF_EXPORTER'])
+env_assimp.Append(CPPDEFINES=['ASSIMP_BUILD_NO_ASSJSON_EXPORTER'])
 
 if(env['platform'] == 'windows'):
     env_assimp.Append(CPPDEFINES=['PLATFORM_WINDOWS'])
@@ -85,16 +96,16 @@ elif(env['platform'] == 'x11'):
 elif(env['platform'] == 'osx'):
     env_assimp.Append(CPPDEFINES=['PLATFORM_DARWIN'])
     env_assimp.Append(CPPDEFINES=[('PLATFORM', 'DARWIN')])
-    
+
 env_thirdparty = env_assimp.Clone()
 env_thirdparty.disable_warnings()
 env_thirdparty.add_source_files(env.modules_sources, Glob('#thirdparty/assimp/code/Common/*.cpp'))
 env_thirdparty.add_source_files(env.modules_sources, Glob('#thirdparty/assimp/code/PostProcessing/*.cpp'))
 env_thirdparty.add_source_files(env.modules_sources, Glob('#thirdparty/assimp/code/Material/*.cpp'))
 env_thirdparty.add_source_files(env.modules_sources, Glob('#thirdparty/assimp/code/FBX/*.cpp'))
-env_thirdparty.add_source_files(env.modules_sources, Glob('#thirdparty/assimp/code/MMD/*.cpp'))
 env_thirdparty.add_source_files(env.modules_sources, Glob('#thirdparty/assimp/code/glTF/*.cpp'))
 env_thirdparty.add_source_files(env.modules_sources, Glob('#thirdparty/assimp/code/glTF2/*.cpp'))
+env_thirdparty.add_source_files(env.modules_sources, Glob('#thirdparty/assimp/code/MMD/*.cpp'))
 
 # Godot's own source files
 env_assimp.add_source_files(env.modules_sources, "*.cpp")