Hi, Just Simple OSG 3.5.0 (130) GLES2 Shaders Example
Code: /** #define OPENSCENEGRAPH_MAJOR_VERSION 3 #define OPENSCENEGRAPH_MINOR_VERSION 5 #define OPENSCENEGRAPH_PATCH_VERSION 0 #define OPENSCENEGRAPH_SOVERSION 130 $ git log -1 commit bc3a77cb1561ed2e47e88ab507180bcf15309f31 Author: Robert OSFIELD <> Date: Fri Jul 17 18:31:22 2015 +0000 mkdir ./GLES2ContextBuild cd ./GLES2ContextBuild cmake \ -DCMAKE_C_COMPILER="/usr/bin/clang" \ -DCMAKE_CXX_COMPILER="/usr/bin/clang++" \ -DCMAKE_CXX_FLAGS="-std=c++11 -v -Wall" \ -DBUILD_OSG_EXAMPLES=1 \ -DOSG_GL1_AVAILABLE=OFF \ -DOSG_GL2_AVAILABLE=OFF \ -DOSG_GL3_AVAILABLE=OFF \ -DOSG_GLES1_AVAILABLE=OFF \ -DOSG_GLES2_AVAILABLE=ON \ -DOPENGL_INCLUDE_DIR=/usr/include/ \ -DOPENGL_LIBRARY=/usr/lib/x86_64-linux-gnu/libGLESv2.so \ -DOPENGL_egl_LIBRARY=/usr/lib/x86_64-linux-gnu/libEGL.so \ -DOSG_GL_DISPLAYLISTS_AVAILABLE=OFF \ -DSG_GL_MATRICES_AVAILABLE=OFF \ -DOSG_GL_VERTEX_FUNCS_AVAILABLE=OFF \ -DOSG_GL_VERTEX_ARRAY_FUNCS_AVAILABLE=OFF \ -DOSG_GL_FIXED_FUNCTION_AVAILABLE=OFF \ -DOSG_CPP_EXCEPTIONS_AVAILABLE=OFF \ ../GLES2ContextSource http://trac.openscenegraph.org/projects/osg/wiki/Community/OpenGL-ES Based on OSG osgsimpleshaders.cpp http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk/examples/osgsimpleshaders/osgsimpleshaders.cpp See Also Hello Triangle: An OpenGL ES 2.0 Example https://www.khronos.org/assets/uploads/books/openglr_es_20_programming_guide_sample.pdf */ #include <osgViewer/Viewer> #include <osg/ShapeDrawable> #include <osg/Geode> #include <osg/Vec3> #include <osg/Program> #include <osg/Shader> #include <osg/Uniform> using namespace osg; static const char *vertexShaderSource = { "attribute vec4 vPosition;\n" "void main()\n" "{\n" "gl_Position = vPosition;\n" "}\n"}; static const char *fragmentShaderSource = { "precision mediump float;\n" "void main()\n" "{\n" "gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n" "}\n"}; int main(int, char **) { osg::setNotifyLevel(osg::INFO); // construct the viewer. osgViewer::Viewer viewer; // use a geode with a Box ShapeDrawable osg::Geode* geode = new osg::Geode(); geode->addDrawable(new osg::ShapeDrawable(new osg::Box(osg::Vec3(0.0f,0.0f,0.0f),1.0f))); osg::StateSet *ss = geode->getOrCreateStateSet(); osg::Program* program = new osg::Program; program->addShader( new osg::Shader( osg::Shader::VERTEX, vertexShaderSource ) ); program->addShader( new osg::Shader( osg::Shader::FRAGMENT, fragmentShaderSource ) ); ss->setAttributeAndModes(program, osg::StateAttribute::ON); viewer.setSceneData(geode); return viewer.run(); } /*EOF*/ Thank you! Cheers, Alex[/code] ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=64383#64383 _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
