Crash with mesh bound particles

[wciow]

Im making a unit for my goblin faction which uses a flaming torch. I tried to use the mesh bound particles feature but the game crashes.

I'm using the lastest 64bit Linux release. Commenting out the code the game runs fine, also binding the particles to a non-existent mesh gives an error in terminal but the game works ok.  Binding particle to a mesh crashes on startup and give the following error in terminal -

(click to show/hide)

megaglest v3.11.1
Compiled using: GNUC: 40603 [64bit] on: Mar  9 2015 19:36:49 platform: Linux-X64 endianness: little
GIT: [Rev: 5090.7f21f4c] - using STREFLOP [SSE] - [no-denormals]
Reverting tileset from [autumn] to [pine_rock]
*ERROR* [2015-03-11 17:19:04] In [/home/megaglest/gitglest/megaglest-source/source/glest_game/types/skill_type.cpp::load Line 485] WARNING CANNOT LOAD MODEL [/home/will/mg/techs/megapack/factions/goblins/units/crusher/models/crusher_idle1.g3d] for parentLoader [/home/will/mg/techs/megapack/factions/goblins/units/crusher/crusher.xml]
*ERROR* [2015-03-11 17:19:04] In [/home/megaglest/gitglest/megaglest-source/source/glest_game/types/skill_type.cpp::load Line 485] WARNING CANNOT LOAD MODEL [/home/will/mg/techs/megapack/factions/goblins/units/goblin_boss/models/boss_idle6.g3d] for parentLoader [/home/will/mg/techs/megapack/factions/goblins/units/goblin_boss/goblin_boss.xml]
*ERROR* [2015-03-11 17:19:04] In [/home/megaglest/gitglest/megaglest-source/source/glest_game/types/skill_type.cpp::load Line 485] WARNING CANNOT LOAD MODEL [/home/will/mg/techs/megapack/factions/goblins/units/goblin_warrior/models/warrior_idle1.g3d] for parentLoader [/home/will/mg/techs/megapack/factions/goblins/units/goblin_warrior/goblin_warrior.xml]
WARNING, unit type [hoard] has one or more duplicate resource requirements
Game unique identifier is: b48601da-c812-11e4-b5b1-85e610eb9574
In [/home/megaglest/gitglest/megaglest-source/source/glest_game/main/main.cpp::handleSIGSEGV Line: 5673] Error detected: signal 11:
Error saved to logfile [/home/will/.megaglest/error.log]
*ERROR* [2015-03-11 17:19:06] In [/home/megaglest/gitglest/megaglest-source/source/glest_game/main/main.cpp::handleRuntimeError Line: 641] [In [/home/megaglest/gitglest/megaglest-source/source/glest_game/main/main.cpp::handleSIGSEGV Line: 5673] Error detected: signal 11:
] gameInitialized = 1, program = 0x191cc10
*ERROR* [2015-03-11 17:19:07] In [/home/megaglest/gitglest/megaglest-source/source/glest_game/main/main.cpp::handleRuntimeError Line: 660] [In [/home/megaglest/gitglest/megaglest-source/source/glest_game/main/main.cpp::handleSIGSEGV Line: 5673] Error detected: signal 11:

Stack Trace:
./megaglest:Glest::Game::ExceptionHandler::handleRuntimeError(char const*, bool)address [0x6f7ef8] line: 651
./megaglest() [0x6f817f]address [0x6f817f]
/lib/x86_64-linux-gnu/libpthread.so.0:()address [0x7ff53396fc90] line: 0
./megaglest:Glest::Game::Unit::setMeshPosInParticleSystem(Shared::Graphics::UnitParticleSystem*)address [0x924f48] line: 4188
./megaglest:Glest::Game::Unit::update()address [0x93b6b9] line: 2753
./megaglest:Glest::Game::UnitUpdater::updateUnit(Glest::Game::Unit*)address [0x9e8e12] line: 217
./megaglest:Glest::Game::World::updateAllFactionUnits()address [0xa18832] line: 717
./megaglest:Glest::Game::World::update()address [0xa22b9a] line: 876
./megaglest:Glest::Game::Game::update()address [0x5a6b05] line: 2166
./megaglest:Glest::Game::Program::loopWorker()address [0x7142db] line: 476
./megaglest:Glest::Game::glestMain(int, char**)address [0x701557] line: 5522
./megaglest:Glest::Game::glestMainSEHWrapper(int, char**)address [0x70566a] line: 5770
/lib/x86_64-linux-gnu/libc.so.6:__libc_start_main()address [0x7ff530401ec5] line: 0
./megaglest() [0x50fe39]address [0x50fe39]
]
Segmentation fault (core dumped)

[titi]

Can you provide the xml(s) which makes trouble ?
Ideally the whole techtree ?

update: I can reproduce it now 

[wciow]

This s the XML file -

(click to show/hide)

<?xml version="1.0" standalone="yes"?>
<unit-particle-system>
       <texture value="true" path="../fire_totem/images/fire_particle.bmp" luminance="true"/>
   <mode value="normal"/>
   <primitive value="quad"/>
   <offset x="0" y="-0" z="0"/>
   <direction x="0.0" y="0.5" z="1.5"/>
   <color red="1.0" green="0.0" blue="0.0" alpha="0.9" />
   <color-no-energy red="0.0" green="1.0" blue="0.0" alpha="0.9" />
       <radius value="0.01" />
       <size value="0.5" />
       <size-no-energy value="0.5" />
       <speed value="0.0" />
   <gravity value="0.000"/>
       <emission-rate value="1" />
       <energy-max value="1" />
       <energy-var value="0" />
   <relative value="true" />
   <meshName value="stick.002"/>
       <fixed value="true"/>
       <teamcolorNoEnergy value="false" />
       <teamcolorEnergy value="false" />
</unit-particle-system>]

commenting out the <meshName> line allows the game to run and the particles show up normally as unit particles.

This is a zipped file of the current Goblins progress and setup.

Code: [Select]

http://www.tinyupload.org/qbtmd8b6rfy

[titi]

can you try git version (3.12-dev) and tell me if it fixes the problem ?

Binary here ( only .exe needed ):

Code: [Select]

http://snapshots.megaglest.org/windows/megaglest-binary-win32-i386-3.12-dev.7z

[wciow]

I'm using Linux so I grabbed the linux binaries instead. Not sure if they also have the fix?

Sadly it didn't work 

(click to show/hide)

egaglest v3.12-dev
Compiled using: GNUC: 40603 [64bit] on: Mar 15 2015 01:53:44 platform: Linux-X64 endianness: little
GIT: [Rev: 5093.14f04c5] - using STREFLOP [SSE] - [no-denormals]
Reverting tileset from [autumn] to [pine_rock]
*ERROR* [2015-03-15 14:54:03] In [/home/jenkins/build/workspace/megaglest-source_l64/source/glest_game/types/skill_type.cpp::load Line 485] WARNING CANNOT LOAD MODEL [/home/will/mg/techs/fantasy_pack/factions/goblins/units/crusher/models/crusher_idle1.g3d] for parentLoader [/home/will/mg/techs/fantasy_pack/factions/goblins/units/crusher/crusher.xml]
*ERROR* [2015-03-15 14:54:03] In [/home/jenkins/build/workspace/megaglest-source_l64/source/glest_game/types/skill_type.cpp::load Line 485] WARNING CANNOT LOAD MODEL [/home/will/mg/techs/fantasy_pack/factions/goblins/units/goblin_boss/models/boss_idle6.g3d] for parentLoader [/home/will/mg/techs/fantasy_pack/factions/goblins/units/goblin_boss/goblin_boss.xml]
*ERROR* [2015-03-15 14:54:03] In [/home/jenkins/build/workspace/megaglest-source_l64/source/glest_game/types/skill_type.cpp::load Line 485] WARNING CANNOT LOAD MODEL [/home/will/mg/techs/fantasy_pack/factions/goblins/units/goblin_warrior/models/warrior_idle1.g3d] for parentLoader [/home/will/mg/techs/fantasy_pack/factions/goblins/units/goblin_warrior/goblin_warrior.xml]
Game unique identifier is: 18330dbe-cb23-11e4-b3aa-21c3c049d9b9
In [/home/jenkins/build/workspace/megaglest-source_l64/source/glest_game/main/main.cpp::handleSIGSEGV Line: 5673] Error detected: signal 11:
Error saved to logfile [/home/will/.megaglest/error.log]
*ERROR* [2015-03-15 14:54:04] In [/home/jenkins/build/workspace/megaglest-source_l64/source/glest_game/main/main.cpp::handleRuntimeError Line: 641] [In [/home/jenkins/build/workspace/megaglest-source_l64/source/glest_game/main/main.cpp::handleSIGSEGV Line: 5673] Error detected: signal 11:
] gameInitialized = 1, program = 0x29b3930
*ERROR* [2015-03-15 14:54:05] In [/home/jenkins/build/workspace/megaglest-source_l64/source/glest_game/main/main.cpp::handleRuntimeError Line: 660] [In [/home/jenkins/build/workspace/megaglest-source_l64/source/glest_game/main/main.cpp::handleSIGSEGV Line: 5673] Error detected: signal 11:

Stack Trace:
./megaglest:Glest::Game::ExceptionHandler::handleRuntimeError(char const*, bool)address [0x6f7ef8] line: 651
./megaglest() [0x6f817f]address [0x6f817f]
/lib/x86_64-linux-gnu/libpthread.so.0:()address [0x7f2fe3fdfc90] line: 0
./megaglest:Glest::Game::Unit::setMeshPosInParticleSystem(Shared::Graphics::UnitParticleSystem*)address [0x924f88] line: 4194
./megaglest:Glest::Game::Unit::update()address [0x93b709] line: 2753
./megaglest:Glest::Game::UnitUpdater::updateUnit(Glest::Game::Unit*)address [0x9e8e62] line: 217
./megaglest:Glest::Game::World::updateAllFactionUnits()address [0xa18882] line: 717
./megaglest:Glest::Game::World::update()address [0xa22bea] line: 876
./megaglest:Glest::Game::Game::update()address [0x5a6b05] line: 2166
./megaglest:Glest::Game::Program::loopWorker()address [0x7142db] line: 476
./megaglest:Glest::Game::glestMain(int, char**)address [0x701557] line: 5522
./megaglest:Glest::Game::glestMainSEHWrapper(int, char**)address [0x70566a] line: 5770
/lib/x86_64-linux-gnu/libc.so.6:__libc_start_main()address [0x7f2fe0a71ec5] line: 0
./megaglest() [0x50fe39]address [0x50fe39]
]
Segmentation fault (core dumped)

[titi]

Ok this looks like something else. Can you give me the model you use to do this ?

The mesh in the model where you want to bind your particles, does it maybe not have any triangles ? You cannot export a single point as a mesh in g3d.

Update: if possible join the chat ( in the european evening) so we can hunt down the bug together.
http://chat.megaglest.org/

[wciow]

This is the model I'm using -

Code: [Select]

http://www.tinyupload.org/r72t2l2obwo
Its 2 separate meshes, stick.002 is the torch and plane.005 is the main model.

I will try experimenting a bit to see if I can get other models to work.

[titi]

Ok, I found the problem now.
First problem is that the model you used had only 1 frame and by this no animation. I need to find a way to work around this, but the main problem was that
somehow the meshes are merged on loading in the game which is a bad idea in this case. I think I can fix it tomorrow, now I know what's wrong.

[wciow]

Thanks Titi,  it seems single frame models don’t work with bound particles. Converted to 2 frame animated model and its working now.

This needs to be in the wiki as it will save other modders the hassle of finding this out the hard way.

[titi]

have a look at meshName in the wiki:

https://docs.megaglest.org/XML/Unit_particle#meshName

Update: I still have trouble....
Update: ok now it works!

And a hint for particle positioning in general:
https://docs.megaglest.org/XML/Faction#flat-particle-positions see flat-particle-positions