本文整理汇总了C++中osg::State::getModelViewMatrix方法的典型用法代码示例。如果您正苦于以下问题：C++ State::getModelViewMatrix方法的具体用法？C++ State::getModelViewMatrix怎么用？C++ State::getModelViewMatrix使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类osg::State的用法示例。
在下文中一共展示了State::getModelViewMatrix方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: drawImplementation
virtual void drawImplementation(osg::State& state,const osg::Drawable* drawable) const
{
static osg::TexMat *tm= new osg::TexMat();
osg::Matrix mvm(state.getModelViewMatrix());
osg::Quat q;
q.set(mvm);
// state.getorcre
tm->setMatrix(osg::Matrix::rotate( q.inverse() ));
state.applyTextureAttribute(1,tm);
// drawable->getOrCreateStateSet()->
drawable->drawImplementation(state);
}示例2: apply
virtual void apply(osg::State& state) const
{
osg::Matrix modelViewMatrix = state.getModelViewMatrix();
state.applyModelViewMatrix(state.getInitialViewMatrix());
for (unsigned int i=0; i<mLights.size(); ++i)
{
mLights[i]->setLightNum(i+mIndex);
mLights[i]->apply(state);
}
state.applyModelViewMatrix(modelViewMatrix);
}示例3:
void Text3D::renderPerGlyph(osg::State & state) const
{
osg::Matrix original_modelview = state.getModelViewMatrix();
// ** for each line, do ...
TextRenderInfo::const_iterator itLine, endLine = _textRenderInfo.end();
for (itLine = _textRenderInfo.begin(); itLine!=endLine; ++itLine)
{
// ** for each glyph in the line, do ...
LineRenderInfo::const_iterator it, end = itLine->end();
for (it = itLine->begin(); it!=end; ++it)
{
osg::ref_ptr<osg::RefMatrix> matrix = new osg::RefMatrix(original_modelview);
matrix->preMultTranslate(osg::Vec3d(it->_position.x(), it->_position.y(), it->_position.z()));
state.applyModelViewMatrix(matrix.get());
// ** apply the vertex array
state.setVertexPointer(it->_glyph->getVertexArray());
// ** render the front face of the glyph
state.Normal(0.0f,0.0f,1.0f);
osg::Geometry::PrimitiveSetList & pslFront = it->_glyph->getFrontPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslFront.begin(), end = pslFront.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
// ** render the wall face of the glyph
state.setNormalPointer(it->_glyph->getNormalArray());
osg::Geometry::PrimitiveSetList & pslWall = it->_glyph->getWallPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslWall.begin(), end=pslWall.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
state.disableNormalPointer();
// ** render the back face of the glyph
state.Normal(0.0f,0.0f,-1.0f);
osg::Geometry::PrimitiveSetList & pslBack = it->_glyph->getBackPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslBack.begin(), end=pslBack.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
}
}
}