[Leadwerks wont run]

I have tried to remove my Leadwerks folder from the Documents folder, but it didn't work.

If i start Leadwerks from terminal i get:

 

libpng warning: Application jmp_buf size changed

Segmentation fault (core dumped)

[Official Leadwerks Exporter for Blender]

After reinspecting things i have noticed that the animation of the .fbx file is imported in Leadwerks. However its about 1000 times the size. I will make a video showing this when i get home.

[Official Leadwerks Exporter for Blender]

.fbx looks fine when imported to LE. (when given a material with skinning shaders)

 

Does the animation in the fbx file look allright?

[Official Leadwerks Exporter for Blender]

Goto here to get blender file and model files.

[Official Leadwerks Exporter for Blender]

Its not just the model viewer.

The model from the Crawler works fine in the Leadwerks model viewer and the model imported from blender does not work in game.

 

If i can't do animations with Blender and import to Leadwerks. Does any one know another solution that can be used?

This is really a showstopper for me right now

[Development with c++ and Lua on Linux]

I didn't show how I actually made the App class into a singleton, however Roland's example is exactly right. This is only to do c++ calls from lua. I haven't actually figured out how to call lua scripts from c++ yet. I suppose I can figure that out by looking at the implementation in the default code in a leadwerks project.

[Development with c++ and Lua on Linux]

Here is how i made it possible to call C++ from LUA.

 

I want to build Multiplayer game in Leadwerks. But i couldn't find networking libraries and threading libraries that would make it usable in Lua. So i build a Networking client in C++ with libcurl and libpthread . But i want to still use the Lua scripting on the prefabs since a lot of work is already done for me here. And also programming in Higher level languages is just faster.

 

I decided to use the libtolua++ libraries, since this is already build into Leadwerks.

 

I work on Ubuntu 15.04. Here the tolua++ libs are installed with:

 

 

sudo apt-get install libtolua++5.1-dev

 

The tolua++ program needs a pck file which shall contain the c++ like seudo code that is translated into lua classes.

 

My package:

 

$#include "shot.h"

class ShotListener {
ShotListener();
~ShotListener();
void shot(Object* oEntity, float damage);
float getHealth(Object* oEntity);
};

 

I have made two functions. One to emit shots detected on the Entities from the Lua scripting. Another to get the current health status from C++ side.

 

My actual ShotListener.h class looks like this:

 

#pragma once
#include "App.h"
#include "Leadwerks.h"
using namespace Leadwerks;
class ShotListener {
private:
public:

ShotListener(void) {
}											
~ShotListener(void){}						
void shot(Object* oEntity, float damage) {
 App *app = App::getInstance();
 Entity * entity = (Entity*)oEntity;
 app->entityShot(entity, damage);
 return;
}
float getHealth(Object* oEntity) {
 App *app = App::getInstance();
 Entity * entity = (Entity*)oEntity;
 float value = app->getEntityHealth(entity);
 return value;
}
};

 

As you can see i changed the default App class into a Singleton so that i can get the App object from the instances of ShotListener that is used from Lua.

Having placed these two files in the same folder i ran the following function from the terminal:

 

tolua++5.1 -o tolua_shot.cpp -H tolua_shot.h -n Shot shot.pkg

 

This generated two files tolua_shot.cpp and tolua_shot.h that i included in my C++ project along with the shot.h file.

 

This way i can do a

 

self.shotListener = ShotListener:new()

 

In the Script:Start() function in mu Lua objects

 

and a

 

self.shotListener:shot(self.entity, self.hits)

 

When Hurt is called in the Lua object.

 

After this i just had to sort out all the Segmentation error bugs because of multithreading.

 

I forgot to mention that the ShotListener Lua also needs to be initialized in the main.cpp before app->Start() with the following:

 

if (Interpreter::L==NULL) Interpreter::Reset();

tolua_ShotListener_open(Interpreter::L);

[Official Leadwerks Exporter for Blender]

Hi, further to my previous post, I have a test .blend, a very simple cube mesh, with 2 bones, an IK target bone and a single action.

 

http://marchingcubes.com/leadwerks_test.blend

 

and the result:

 

http://marchingcubes.com/leadwerks_test.mdl

 

When i export this to leadwerks using the leadwerks blender exporter, load it in the model viewer, and assign a material with animation support e.g. the crawler material, the animation does play, but I get the mesh flickering in and out of existence at various frames.

 

I am on ubuntu 14.04, using leadwerks 3.3 from steam, blender 2.72 and the latest blender exporter from this site.

 

Hopefully you can reproduce and/or suggest a fix for me, I would really like to get this resolved as a solid pipeline for doing armature-driven animation from blender is essential to my work.

 

I Also have this issue.

I run Blender and Leadwerks on Linux.

I have tried to do the Blender Work and exporting in Windows and importing in Leadwerks on Linux, but with the same result. I havent tried to Import on Windows Leadwerks since i dont have a Windows machine with OpenGL 4 support

I am running my Windows build environment in Virtualbox. So i can run Blender and build the solution in Visual studio.

[Blender animation import in Leadwerks]

I have an Issue when I import Models from Blender that are animated with bones and armatures.

I have the Leadwerks export plugin installed in Blender but you can also export with FBX.

However the result is similar.

 

I have made a video about it and uploaded it on youtube:

 

 

Sometimes i can get a half model appearing with animations in Leadwerks and other i can only get a few faces appearing.

[Communicating from Lua to C++]

Since i didn't have a solution to do a server-client data layer in Lua i decided to build one in C++. This is mainly due to being more familiar with multi threading in C++, And this kind of stuff needs to be in a separate thread from the 3D rendering thread, in my opinion.

But i still wanted to use LUA for prefab scripting and all the other neat stuff Leadwerks.

 

Here is what i did to make this work:

 

I installed tolua++ on my development machine with

 

sudo apt-get install libtolua++5.1-dev

 

I build a class named ShotListener.h

 

#pragma once
#include "App.h"
#include "Leadwerks.h"
using namespace Leadwerks;
class ShotListener { //tolua_export
private:
public:
//tolua_begin
   ShotListener(void) {
   }											    // constructor 1
   ~ShotListener(void){}											 // destructor
   void shot(Object* oEntity, float damage) {
    App *app = App::getInstance();
    Entity * entity = (Entity*)oEntity;
    app->entityShot(entity, damage);
    return;
   }
   float getHealth(Object* oEntity) {
    App *app = App::getInstance();
    Entity * entity = (Entity*)oEntity;
    float value = app->getEntityHealth(entity);
    return value;
   }
};

 

I Made the App class into a Singleton, so that any Lua script can instantiate the ShotListener and call functions from the App.

I made a tolua++ ShotListener.PCK file to match the ShotListener class:

 

$#include "shot.h"

class ShotListener {
ShotListener();
~ShotListener();
void shot(Object* oEntity, float damage);
float getHealth(Object* oEntity);
};

 

In the terminal i used the following command to make the ShotListener.PCK into actual C++ code:

 

tolua++5.1 -o tolua_shot.cpp -H tolua_shot.h -n ShotListener shotlistener.pkg

 

This created two files tolua_shot.cpp and tolua_shot.h.

 

These i included in my project along with the ShotListener.h file.

 

In the main.cpp i added the following before the app->Start()

 

if (Interpreter::L==NULL) Interpreter::Reset();
tolua_ShotListener_open(Interpreter::L);

 

Hi then had a ton of debugging to avoid segmentation error bugs related to multithreading. But in the end it works.

[Blender Animation -> Leadwerks]

I also have this issue on linux.

 

I have found a workaround, that makes all the faces appear,( by searching the animation in the Ladwerks Model editor and finding a frame where all the faces are shown and then saving.)

This is a huge setback in my project. I can't continue if i cant make animations work.