| 1 | How to use examples |
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| 2 | =============================== |
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| 3 | |
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| 4 | ATTENTION: |
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| 5 | Examples do load .ppu and .glsl files out of the Data directory, which can |
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| 6 | be found in the main direcotry of osgPPU. In order that this files are found |
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| 7 | you have to setup the OSG_FILE_PATH environment variable accordingly. |
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| 8 | Hence on Unix systems do following: |
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| 9 | export OSG_FILE_PATH=$OSG_FILE_PATH:/path/were/osgPPU/is/installed/ |
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| 10 | |
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| 11 | Other solution would be just to copy the Data/ directory under your bin/ |
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| 12 | directory to let examnple run |
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| 13 | |
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| 14 | |
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| 15 | The Data/ irectory does contain some examples and tools coming together |
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| 16 | witht the osgPPU package. Use them to see how all the things are setted up. |
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| 17 | Use the viewer to see the .ppu files which you can find in the bin/Data/ |
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| 18 | directory. |
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| 19 | For example: |
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| 20 | cd bin |
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| 21 | ./viewer Data/motionblur.ppu |
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| 22 | will show you how the motionblur effect can be realized with the osgPPU. |
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| 23 | The corresponding .ppu file does contain a main setup for the correct |
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| 24 | effect pipeline. |
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| 25 | |
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| 26 | |
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| 27 | |
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| 28 | |
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| 29 | How to build the osgPPU |
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| 30 | =============================== |
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| 31 | |
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| 32 | The osgPPU uses the CMake build system to generate a |
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| 33 | platform-specific build environment. This build system |
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| 34 | was choosen since OpenSceneGraph is also based on it. |
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| 35 | |
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| 36 | If you don't already have CMake installed on your system you can grab |
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| 37 | it from http://www.cmake.org, use version 2.4.6 or later. Details on the |
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| 38 | OpenSceneGraph's CMake build can be found at: |
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| 39 | |
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| 40 | http://www.openscenegraph.org/projects/osg/wiki/Build/CMake |
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| 41 | |
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| 42 | Under unices (i.e. Linux, IRIX, Solaris, Free-BSD, HP-Ux, AIX, OSX) |
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| 43 | use the cmake or ccmake command-line utils. To compile osgPPU type following: |
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| 44 | |
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| 45 | cd osgPPU |
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| 46 | cmake . -DCMAKE_BUILD_TYPE=Release |
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| 47 | make |
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| 48 | sudo make install |
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| 49 | |
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| 50 | Alternatively, you can create an out-of-source build directory and run |
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| 51 | cmake or ccmake from there. The advantage to this approach is that the |
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| 52 | temporary files created by CMake won't clutter the osgPPU |
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| 53 | source directory, and also makes it possible to have multiple |
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| 54 | independent build targets by creating multiple build directories. In a |
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| 55 | directory alongside the OpenSceneGraph use: |
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| 56 | |
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| 57 | mkdir build |
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| 58 | cd build |
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| 59 | cmake ../ -DCMAKE_BUILD_TYPE=Release |
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| 60 | make |
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| 61 | sudo make install |
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| 62 | |
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| 63 | If you would like to install the library somehwere else than the default |
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| 64 | install location, so type in the main directory of osgPPU the following: |
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| 65 | |
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| 66 | cmake . -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/path/to/install |
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| 67 | make install |
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| 68 | |
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| 69 | Under Windows use the GUI tool CMakeSetup to build your VisualStudio |
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| 70 | files. The following page on OpenSceneGraph's wiki dedicated to the CMake build |
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| 71 | system should help guide you through the process: |
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| 72 | |
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| 73 | http://www.openscenegraph.org/projects/osg/wiki/Support/PlatformSpecifics/VisualStudio |
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| 74 | |
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| 75 | |
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| 76 | |
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| 77 | |
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| 78 | How to build osg plugin osgdb_ppu |
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| 79 | =============================== |
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| 80 | The plugin is build together with the complete library. |
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| 81 | However to install the library file in correct plugin |
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| 82 | directory you have to specify the version of osg with: |
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| 83 | |
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| 84 | cmake . -DOSG_VERSION=2.5.x |
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| 85 | |
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| 86 | The consecutive call of "make install" would install |
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| 87 | the ppu plugin under PREFIX/lib/osgPlugins-2.5.x/. |
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| 88 | If no version was specified then the installation path |
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| 89 | is PREFIX/lib/osgPlugins-2.4.0/ |
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| 90 | |
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| 91 | |
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| 92 | |
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| 93 | |
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