Using Ubuntu 18.04 on Azure to build
Have followed instructions and installed all supporting libraries. Have defeated most errors that have been thrown so far however not able to get passed this error right now

./hammer.sh build ember

results in

/home/daniel/hammer/work/source/worldforge/clients/ember/src/components/ogre/OgreSetup.cpp:52:2: error: #error OGRE must be built with thread support.
 #error OGRE must be built with thread support.
  ^~~~~

$ ember --debug
Starting Ember in debugger....
/usr/bin/ember.bin: symbol lookup error: /usr/bin/ember.bin: undefined symbol: _ZN7varconf10ParseErrorcvNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEB5cxx11Ev
[Inferior 1 (process 5355) exited with code 0177]
No stack.

I compiled ember and dependencies using the package build script on SlackBuilds.org. It starts, then crashes with the following error (that actually a GUI does start before the crash, contrary to what it says.)

d@cosmos:~$ ember
Starting Ember....
Registering: list_commands
Registering: quit
Registering: toggle_erispolling
Starting Ember version 0.7.2
Initializing Ember services
Registering: loadscript
Registering: connect
Registering: meta_refresh
Registering: meta_abort
Metaserver Service created
Registering: set_value
Registering: get_value
Setting home directory to /home/d/.ember
connect(2) call to /dev/shm/jack-1000/default/jack_0 failed (err=No such file or directory)
attempt to connect to server failed
==== Error during startup ====
Could not load gui, aborting. Make sure that all media got downloaded and installed correctly.

Ember shut down successfully.
Deregistering: toggle_erispolling
Deregistering: quit
AL lib: (EE) alc_cleanup: 1 device not closed

I can not get it to build (on Arch Linux) because ld complains about tons of undefined references. In fact, it is almost 2000 lines so I had to put the output into a separate logfile.
ember-build.log

I used the following commands to build:

cd $srcdir/ember
conan remote add worldforge https://artifactory.ogenvik.org/artifactory/api/conan/conan --force
mkdir -p build && cd build
CONAN_REVISIONS_ENABLED=1 conan install .. --build missing
cmake ..
make all media-download

Which is what the README says. CONAN_REVISIONS_ENABLED=1 is required for conan because otherwise it errors out before installing any modules, I just followed the instructions in the error I got. --force is also required or it errors out when the remote was already added. -j is configured somewhere else on my system, so I removed it from the make command, this has no effect on the outcome.

Ubuntu 10.10 x64 with ATI HD4870 Graphics card running propietary drivers.

volli@volli-pc:/build/hammer/work/local/bin$ ./ember
According to my calculations Ember should be installed in /home/volli/build/hammer/work/local/bin/..
Starting Ember....
Registering: list_commands
Registering: quit
Registering: toggle_erispolling
Starting Ember version 0.6.2
Initializing Ember services
Registering: loadscript
Registering: connect
Registering: meta_refresh
Registering: meta_abort
Metaserver Service created
Registering: set_value
Registering: get_value
Setting home directory to /home/volli/.ember
Crashed with signal 11, will try to shut down SDL gracefully. Please report bugs at https://bugs.launchpad.net/ember
./ember: Zeile 111: 17905 Speicherzugriffsfehler $bindir/ember.bin --home $homedata "$@"
volli@volli-pc:/build/hammer/work/local/bin$

http://pastebin.com/JNybeT6e gdb output

http://pastebin.com/6B6JaEKv gdb backtrace

This is most obviously missing newlines and potentially other formatting.

Steps to reproduce:

1. Start up ember.
2. Click the ? button.

http://amber.worldforge.org/ember/releases/unstable/Ember-latest.exe is forbidden, not a problem to build from source, but I thought I should bring it up somewhere

I try compile ember on Slackware64 -current:

http://pastebin.com/kZahe6AR

https://bugzilla.redhat.com/show_bug.cgi?id=1674851

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=925674

Atlas.cxx: In function 'int tolua_Atlas_Atlas_Message_MapType_iterator__eq00(lua_State*)':
Atlas.cxx:1911:43: error: 'std::map<std::__cxx11::basic_string, Atlas::Message::Element>::iterator' {aka 'struct std::_Rb_tree_iterator<std::pair<const std::__cxx11::basic_string, Atlas::Message::Element> >'} has no member named 'operator=='; did you mean 'operator*'?
1911 | bool tolua_ret = (bool) self->operator==(value);
| ^~
| operator
make[6]: *** [Makefile:435: Atlas.o] Error 1

Hey,
you should add *.cxx files to gitignore list.

Hopefully the following backtrace will be useful to you:

(gdb) 
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007ffff6152859 in __GI_abort () at abort.c:79
#2  0x00007ffff6152729 in __assert_fail_base (fmt=0x7ffff62e8588 <error: Cannot access memory at address 0x7ffff62e8588>, 
    assertion=0x555556978490 <error: Cannot access memory at address 0x555556978490>, file=0x555556978368 <error: Cannot access memory at address 0x555556978368>, line=232, 
    function=<optimized out>) at assert.c:92
#3  0x00007ffff6163f36 in __GI___assert_fail (assertion=0x555556978490 <error: Cannot access memory at address 0x555556978490>, 
    file=0x555556978368 <error: Cannot access memory at address 0x555556978368>, line=232, function=0x555556978420 <error: Cannot access memory at address 0x555556978420>)
    at assert.c:101
#4  0x000055555638210c in Ogre::AxisAlignedBox::setExtents(float, float, float, float, float, float) ()
#5  0x0000555556381dc1 in Ogre::AxisAlignedBox::AxisAlignedBox(float, float, float, float, float, float) ()
#6  0x00005555563dc688 in Ember::OgreView::Convert::toOgre(WFMath::AxisBox<3> const&) ()
#7  0x00005555564c5aa9 in Ember::OgreView::Model::ModelMount::scaleNode(WFMath::AxisBox<3> const*) ()
#8  0x00005555564c569f in Ember::OgreView::Model::ModelMount::rescale(WFMath::AxisBox<3> const*) ()
#9  0x00005555564c7a33 in Ember::OgreView::Model::ModelAttachment::updateScale() ()
#10 0x00005555564c82e1 in Ember::OgreView::Model::ModelAttachment::model_Reloaded() ()
#11 0x00005555564d1435 in sigc::bound_mem_functor0<void, Ember::OgreView::Model::ModelAttachment>::operator()() const ()
#12 0x00005555564cf912 in sigc::adaptor_functor<sigc::bound_mem_functor0<void, Ember::OgreView::Model::ModelAttachment> >::operator()() const ()
#13 0x00005555564cdbc0 in sigc::internal::slot_call<sigc::bound_mem_functor0<void, Ember::OgreView::Model::ModelAttachment>, void>::call_it(sigc::internal::slot_rep*) ()
#14 0x00005555561fb14d in sigc::internal::signal_emit0<void, sigc::nil>::emit(sigc::internal::signal_impl*) ()
#15 0x000055555620aa36 in sigc::signal0<void, sigc::nil>::emit() const ()
#16 0x0000555556463e9b in Ember::OgreView::Model::Model::loadAssets() ()
#17 0x0000555556485d84 in Ember::OgreView::Model::ModelDefinition::reloadModels() ()
#18 0x0000555556485d0f in Ember::OgreView::Model::ModelDefinition::reloadModels()::{lambda()#1}::operator()() const ()
#19 0x0000555556486fda in std::_Function_handler<void (), Ember::OgreView::Model::ModelDefinition::reloadModels()::{lambda()#1}>::_M_invoke(std::_Any_data const&) ()
#20 0x00005555563f3b76 in std::function<void ()>::operator()() const ()
#21 0x00007ffff7c4c6fc in Eris::EventService::runOnMainThread(std::function<void ()> const&, std::shared_ptr<bool>)::{lambda()#1}::operator()() const ()
   from /usr/local/lib/liberis-1.4.so.0
#22 0x00007ffff7c4cf1e in std::_Function_handler<void (), Eris::EventService::runOnMainThread(std::function<void ()> const&, std::shared_ptr<bool>)::{lambda()#1}>::_M_invoke(std::_Any_data const&) () from /usr/local/lib/liberis-1.4.so.0
#23 0x00005555563f3b76 in std::function<void ()>::operator()() const ()
#24 0x00007ffff7c4ccc3 in Eris::EventService::processOneHandler() () from /usr/local/lib/liberis-1.4.so.0
#25 0x00005555561f6a05 in Ember::Application::mainLoop() ()
#26 0x00005555561f8e62 in Ember::Application::start() ()
#27 0x0000555556222d07 in main ()

Entire stack built from source using checkouts from Github. All checkouts on master except CEGUI, which didn't build, so I reverted to orgin/v0-8. Ubuntu 20.04, gcc 9.3.0.

Not sure if the problem was my build, but I couldn't get the binary distributions to work either. The apt-repository packages claimed that they weren't properly signed, and the dpkg distribution lacked the dependencies. Not really seeking support, just trying to be helpful.

Steps to reproduce:

1. Connect to any server. In this case I got my local instance of cyphesis.
2. Get killed by wolves or goblins or so.
3. Segfault. Trace attached. Because of conan conflicts I can not rebuild ember, so the trace will be of limited use since I could not recompile with debugging symbols enabled.

Trace

System info:

• OS: Arch Linux
• Ember version: 05d49f7

Hi. I've installed ember, cyphesis and dependencies from the packages supplied by the Fedora team.
The configuration screen comes up, I leave everything as-is, the program starts loading stuff and then fails.

Here are the messages -
Starting Ember....
Registering: list_commands
Registering: quit
Registering: toggle_erispolling
Starting Ember version 0.7.2
Initializing Ember services
Registering: loadscript
Registering: connect
Registering: meta_refresh
Registering: meta_abort
Metaserver Service created
Registering: set_value
Registering: get_value
Setting home directory to /home/neilt/.ember
libGL error: failed to create drawable
X Error of failed request: 0
Major opcode of failed request: 155 (GLX)
Minor opcode of failed request: 26 (X_GLXMakeContextCurrent)
Serial number of failed request: 29
Current serial number in output stream: 29
AL lib: (EE) alc_cleanup: 1 device not closed
[neilt@wol worldforge]$ less ~/.ember/ember.log
[neilt@wol worldforge]$ > ~/.ember/ember.log;ember
Starting Ember....
Registering: list_commands
Registering: quit
Registering: toggle_erispolling
Starting Ember version 0.7.2
Initializing Ember services
Registering: loadscript
Registering: connect
Registering: meta_refresh
Registering: meta_abort
Metaserver Service created
Registering: set_value
Registering: get_value
Setting home directory to /home/neilt/.ember

I've looked in the ember.log file, and it fails immediately it tries to start CEGUI for the second time -
.
.
.
[19:56:55] INFO Finished loading 214 modeldefinitions.
[19:56:55] INFO Registering: set_level
[19:56:55] INFO The material '/base/simple' has 4 supported techniques out of 4
[19:56:55] INFO The material '/base/simple' has best supported scheme High. Was looking for Experimental
[19:56:55] INFO The material '/base/simple' has 4 supported techniques out of 4
[19:56:55] INFO The material '/base/simple' supported with scheme High
[19:56:55] INFO The material '/base/normalmap' has 8 supported techniques out of 8
[19:56:55] INFO The material '/base/normalmap' supported with scheme High
[19:56:55] INFO The material '/base/normalmap/specular' has 8 supported techniques out of 8
[19:56:55] INFO The material '/base/normalmap/specular' supported with scheme High
[19:56:55] INFO Best graphics level is High
[19:56:55] INFO Using graphics level Medium
[19:56:55] INFO Registering: toggle_inputmode
[19:56:55] INFO Registering: reloadgui
[19:56:55] INFO Registering: toggle_gui
[19:56:55] INFO Binding key tab to command /console_focus for state gui.
[19:56:55] INFO Setting CEGUI logging level to 'standard'.
[19:56:55] INFO Starting CEGUI
[19:56:55] FAILURE (CEGUI) CEGUI::ScriptException in function 'static void CEGUI::LuaFunctor::pushNamedFunction(lua_
State*, const CEGUI::String&)' (/builddir/build/BUILD/cegui-0.8.7/cegui/src/ScriptModules/Lua/Functor.cpp:222) : Una
ble to get the Lua event handler: 'debug.traceback' as first part is not a table
[19:56:55] FAILURE GUIManager - error when creating gui.
Exception: CEGUI::ScriptException in function 'static void CEGUI::LuaFunctor::pushNamedFunction(lua_State*, const CEGUI::String&)' (/builddir/build/BUILD/cegui-0.8.7/cegui/src/ScriptModules/Lua/Functor.cpp:222) : Unable to get the Lua event handler: 'debug.traceback' as first part is not a table
[19:56:55] INFO Deregistering: toggle_gui
[19:56:55] INFO Deregistering: reloadgui
[19:56:55] INFO Deregistering: toggle_inputmode
[19:56:55] CRITICAL Error during startup.
Exception: Could not load gui, aborting. Make sure that all media got downloaded and installed correctly.
[19:56:55] INFO Service 'Server Service' stopped.
[19:56:55] INFO (Ogre) Unregistering ResourceManager for type SoundDefinition
[19:56:55] INFO (Ogre) Unregistering ResourceManager for type EntityRecipe
[19:56:55] INFO (Ogre) Unregistering ResourceManager for type TerrainLayerDefinition
[19:56:55] INFO (Ogre) Unregistering ResourceManager for type EntityMappingDefinition
[19:56:55] INFO (Ogre) Unregistering ResourceManager for type ModelDefinition
.
.
.

I have attached the entire ember.log -
ember.log

I compiled ember using the hammer script on Gentoo. When I start the game I get up until the character selection. Shortly after the "Entering world..." screen appears ember crashes with:

Crashed with signal 11, will try to detach the input system gracefully. Please report bugs at https://bugs.launchpad.net/ember

The interesting part of the ember.log is:

FAILURE (Ogre) WARNING: material common/compositors/bloom/BloomBlend2 has no supportable Techniques and will be blank. Explanation: 
Pass 0: fragment program Bloom2_ps cannot be used - not supported.

and:

WARNING (Eris) received op with valid refno (1005) but no response is registered
WARNING (Eris) received op with valid refno (1006) but no response is registered
WARNING (Eris) received username does not match existing
WARNING (Eris) no-one handled op:{from:"943",to:"943",seconds:10818.5,args:[{args:[],parent:"set",objtype:"op"}],parent:"think",objtype:"op"}
WARNING (Eris) no-one handled op:{from:"76",to:"943",seconds:10818.5,args:[{id:"943"}],parent:"look",objtype:"op"}
WARNING (Eris) no-one handled op:{from:"171",to:"943",seconds:10818.5,args:[{id:"943"}],parent:"look",objtype:"op"}
CRITICAL (Eris) got sight of queued entity 10 somehow

This could be related to #4 and #22

Steps to reproduce:

1. Connect to any server.
2. Change terrain page size.
3. Chaos.

Expected behavior:

Do not apply this setting until ember has restarted. Display a warning like "This setting will take effect after reconnecting to the server or restarting ember". Additionally, the terrain settings are missing tooltips.

Many textures are blurry for no reason. I assume this depth of field thing is for performance reasons but it appears there is no way to change this behavior.

The texture is perfectly sharp when you look at it with an angle of about 90°.

Expected behavior:

The textures which are close to you are not blurry and this effect is not nearly as obvious.

Using the hammer.sh process for building, the install-deps installed OGRE 13.4.1, so when it got to ember, it did this:

Ember client...
Configuring...
CMake Error at CMakeLists.txt:258 (find_package):
Could not find a configuration file for package "OGRE" that is compatible
with requested version "13.4.2".

The following configuration files were considered but not accepted:

.../src/worldforge/hammer/work/local/lib/OGRE/cmake/OGREConfig.cmake, version: 13.4.1

This is from a clean build from tonight.