lianlab / ogre-paged Goto Github PK

We are using paged geometry's grass and having a problem with the density map 
that is incorrect. It is caused by this line:

PropertyMaps.cpp:137

#if OGRE_PLATFORM != OGRE_PLATFORM_APPLE
        // Patch incorrect PixelBox::getWidth() in OpenGL mode
        if (Root::getSingleton().getRenderSystem()->getName() == "OpenGL Rendering Subsystem")
                --mapWidth;
#endif //OGRE_PLATFORM_APPLE

We have tested it with the OpenGL mode both on Windows and Linux. With this 
line, on OpenGL the density map looks incorrect, removing this line fixes it.

This link is in Cairo ,Egypt  but the address is USA  http://goo.gl/U9pjM
Yemen

PagedGeometry.pc contains:
    Libs: -L${libdir} -l 

In Libs, "-l " doesn't mean anything. It should be -lPagedGeometry so it links 
against libPagedGeometry.a.

PS: I've now packaged ogre-paged for slackware; will appear on slackbuilds.org 
after some more testing.

Compilation and installation process of ogre-paged was successful on Ubuntu 
Linux 10.04 using latest Ogre 1.8.0 code snapshot.

All examples compile fine too, but they fail to load because of OgreException:

OGRE EXCEPTION(2:InvalidParametersException): World geometry is not supported 
by the generic SceneManager.

Is this an incompatibility with Ogre 1.8.0, or maybe something else? I've used 
this version of Ogre for several other applications without problems, so I 
assume my Ogre installation is healthy.

What might be the reason? Startup log from Example1 attached in this report.

Compiling ogre-paged-1.1.3 on OpenBSD fails:

/usr/ports/pobj/ogre-paged-1.1.3/ogre-paged-1.1.3/examples/Example11.cpp:13:25: 
error: OgreTerrain.h: No such file or directory
/usr/ports/pobj/ogre-paged-1.1.3/ogre-paged-1.1.3/examples/Example11.cpp:14:30: 
error: OgreTerrainGroup.h: No such file or directory
/usr/ports/pobj/ogre-paged-1.1.3/ogre-paged-1.1.3/examples/Example11.cpp:15:37: 
error: OgreTerrainQuadTreeNode.h: No such file or directory
/usr/ports/pobj/ogre-paged-1.1.3/ogre-paged-1.1.3/examples/Example11.cpp:16:43: 
error: OgreTerrainMaterialGeneratorA.h: No such file or directory
/usr/ports/pobj/ogre-paged-1.1.3/ogre-paged-1.1.3/examples/Example11.cpp:17:31: 
error: OgreTerrainPaging.h: No such file or directory

These headers are installed with Ogre:

$ ls /usr/local/include/OGRE/Terrain/
OgreTerrain.h                           OgreTerrainPagedWorldSection.h
OgreTerrainGroup.h                      OgreTerrainPaging.h
OgreTerrainLayerBlendMap.h              OgreTerrainPrerequisites.h
OgreTerrainMaterialGenerator.h          OgreTerrainQuadTreeNode.h
OgreTerrainMaterialGeneratorA.h

Using ogre-1.7.4.

Seems like there is a bug in the Cmake system,
editing CMakeLists.txt, line 32:
change: "SET(BUILD_SHARED_LIBS OFF)"
to: "SET(BUILD_SHARED_LIBS ON)"

This still results in a static library: libPagedGeometry.a
It should have resulted in: libPagedGeometry.so

GettingStarted.txt only describes how to build on Windows.

Doing the usual 'cmake -g "Unix Makefiles" ../.' will fail.

How do we tell cmake where our Ogre source is?  It should fallback to looking 
in /usr/local/include



brett@natty32:~/pagedgeometry-sources-1.1.1/build$ cmake -g "Unix Makefiles" 
../.
could not find the OIS includes. Please install them.
-- Could NOT find Doxygen (missing:  DOXYGEN_EXECUTABLE) 
-- Configuring done
-- Generating done
-- Build files have been written to: 
/home/brett/pagedgeometry-sources-1.1.1/build
brett@natty32:~/pagedgeometry-sources-1.1.1/build$ cmake -g "Unix Makefiles" 
../.
could not find the OIS includes. Please install them.
-- Could NOT find Doxygen (missing:  DOXYGEN_EXECUTABLE) 
-- Configuring done
-- Generating done
-- Build files have been written to: 
/home/brett/pagedgeometry-sources-1.1.1/build
brett@natty32:~/pagedgeometry-sources-1.1.1/build$ make
[ 63%] Building CXX object source/CMakeFiles/PagedGeometry.dir/BatchedGeometry.o
/home/brett/pagedgeometry-sources-1.1.1/source/BatchedGeometry.cpp:16:22: fatal 
error: OgreRoot.h: No such file or directory
compilation terminated.
make[2]: *** [source/CMakeFiles/PagedGeometry.dir/BatchedGeometry.o] Error 1
make[1]: *** [source/CMakeFiles/PagedGeometry.dir/all] Error 2
make: *** [all] Error 2

What steps will reproduce the problem?
1. Build soluion for MVS2010 in CMake.
2. Add some path in examlple11 (this examle has problem with links)
3. Build all projects in solution without errors.
4. Copy OgreMaian.dll and OIS.dll to folder with .exe files.

What is the expected output? What do you see instead?
I want see any runing example but I see this error 
http://files.ribalka02.ru/links/error/
It is writen "unhandled exception at ...."

What version of the product are you using? On what operating system?
I use PagedGeometry 1.1.4 in MVS2010 and OS Win7x64

Hi, 
I have found a bug. Setting a max slope for a grass rendered as a cross quad 
doesn't work correctly.

I have examined it and now I know that it's not working correctly because 
there's a typo in a code.
In a GrassLoader.cpp file, generateGrass_CROSSQUADS() function at 492line is 
code:

if (heightFunction)
{
  if (layer->getMaxSlope() < (Math::Abs(y1 - y2) / (halfScaleX * 2)))
  {
    //Degenerate the face
    x2 = x1;
    y2 = y1;
    z2 = z1;
  }

  y3 = heightFunction(x3, z3, heightFunctionUserData);
  y4 = heightFunction(x4, z4, heightFunctionUserData);
}

Instead of the x1 and x2 variables, there should be used x3 and x4, same with y 
and z variables.

Also, now there is only 1 quad discarded instead of 2 when the slope is too big 
for a grass. I have fixed it too.

I have attached a fixed GrassLoader.cpp from the newest PagedGeometry 1.1.1 
without this bug ;).

Thanks for the addon :).

https://github.com/ducttape/ogre-paged/

Lots of cleanups, compiler fixes, etc.

I've found a bug in code, more here:
http://www.ogre3d.org/addonforums/viewtopic.php?f=14&t=29696
It does change a lot, so would be good to have it in official code repo.