CallbackDrawable::CallbackDrawable(FlowPagedRenderer * renderer, osg::BoundingBox bounds)
{
_bbox = bounds;
_renderer = renderer;
setUseDisplayList(false);
setUseVertexBufferObjects(true);
}
FlexDrawable::FlexDrawable()
: _solver(NULL)
{
setUseDisplayList( false );
setUseVertexBufferObjects( false );
setCullCallback( FlexUpdater::instance() );
osg::ref_ptr<osg::Program> program = new osg::Program;
program->addShader( new osg::Shader(osg::Shader::VERTEX, flexVertCode) );
program->addShader( new osg::Shader(osg::Shader::FRAGMENT, flexFragCode) );
osg::StateSet* ss = getOrCreateStateSet();
ss->setAttributeAndModes( program.get() );
}
//------------------------------------------------------------------------------
void HudTextureElement::init()
{
Texture * tex_object = s_texturemanager.getResource(texture_name_);
if (!tex_object) return;
osg::ref_ptr<osg::Texture2D> tex = tex_object->getOsgTexture();
osg::ref_ptr<osg::Image> image = tex->getImage();
aspect_ratio_ = (float)image->s() / image->t();
tex->setFilter(osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR);
tex->setFilter(osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR);
tex->setBorderColor(osg::Vec4(0,0,0,0));
tex->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_BORDER);
tex->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_BORDER);
getOrCreateStateSet()->setTextureAttributeAndModes(0,tex.get(),osg::StateAttribute::ON);
setUseDisplayList(false);
setUseVertexBufferObjects(true);
addPrimitiveSet(new osg::DrawArrays(GL_QUADS,0,4));
Color color = s_params.get<Color> ("hud." + section_ + ".color");
osg::Vec2Array* texcoord = new osg::Vec2Array(4);
setTexCoordArray(0,texcoord);
osg::Vec4Array * osg_color = new osg::Vec4Array(1);
(*osg_color)[0].set(color.r_, color.g_, color.b_, color.a_);
setColorArray(osg_color);
setColorBinding(osg::Geometry::BIND_OVERALL);
(*texcoord)[0].set(0,0);
(*texcoord)[1].set(1,0);
(*texcoord)[2].set(1,1);
(*texcoord)[3].set(0,1);
s_scene_manager.addObserver(ObserverCallbackFun0(this, &HudTextureElement::onResolutionChanged),
SOE_RESOLUTION_CHANGED,
&fp_group_);
onResolutionChanged();
}
SomePointsRenderer(SomePointsGenerator*_generator)
{
setUseVertexBufferObjects(true);
osg::Vec4Array* vAry2 = new osg::Vec4Array;
vAry2->resize(_generator->getNumPrimitivesGenerated());
setVertexArray(vAry2);
addPrimitiveSet( new osg::DrawArrays( GL_LINES, 0,_generator->getNumPrimitivesGenerated()));
osg::StateSet* sset = getOrCreateStateSet();
///hacking rendering order
/*osg::BlendFunc* bf = new
osg::BlendFunc(osg::BlendFunc::SRC_ALPHA,
osg::BlendFunc::ONE_MINUS_SRC_ALPHA );
sset->setAttributeAndModes(bf);*/
sset->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
getOrCreateVertexBufferObject();
sset->setAttribute( createRenderShader() );
}
SomePointsGenerator::SomePointsGenerator():osg::Geometry()
{
setUseVertexBufferObjects(true);
osg::StateSet* sset = getOrCreateStateSet();
sset->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
vAry = new osg::Vec4Array;;
vAry->push_back( osg::Vec4(0,0,0,1) );
vAry->push_back( osg::Vec4(0,1,0,1) );
vAry->push_back( osg::Vec4(1,0,0,1) );
vAry->push_back( osg::Vec4(1,1,0,1 ));
addPrimitiveSet( new osg::DrawArrays( GL_POINTS, 0, vAry->size() ) );
setVertexArray( vAry );
_program=createGeneratorShader() ;
sset->setAttribute(_program );
// a generic cyclic animation value
osg::Uniform* u_anim1( new osg::Uniform( "u_anim1", 0.9f ) );
u_anim1->setUpdateCallback( new SineAnimation( 4, 0.5, 0.5 ) );
sset->addUniform( u_anim1 );
}
