Updates to the GLUT and Producer text demo.
Fix to text to better handle unsetting of vertex arrays.
This commit is contained in:
Robert Osfield
@@ -43,6 +43,11 @@ osg::Group* createHUDText()
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float margin = 50.0f;
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up different text layout
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//
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osg::Vec4 layoutColor(1.0f,1.0f,0.0f,1.0f);
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float layoutCharacterSize = 20.0f;
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@@ -90,6 +95,11 @@ osg::Group* createHUDText()
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up different font resolution
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//
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osg::Vec4 fontSizeColor(0.0f,1.0f,1.0f,1.0f);
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float fontSizeCharacterSize = 30;
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@@ -140,6 +150,11 @@ osg::Group* createHUDText()
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up different sized text
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//
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osg::Vec4 characterSizeColor(1.0f,0.0f,1.0f,1.0f);
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cursor.y() -= fontSizeCharacterSize*2.0f;
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@@ -189,82 +204,215 @@ osg::Group* createHUDText()
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}
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cursor.x() = 500;
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cursor.y() = margin;
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up different alignments
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//
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osg::Vec4 alignmentSizeColor(0.0f,1.0f,0.0f,1.0f);
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float alignmentCharacterSize = 25.0f;
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cursor.x() = 640;
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cursor.y() = margin*4.0f;
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typedef std::pair<osgText::Text::AlignmentType,std::string> AlignmentPair;
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typedef std::vector<AlignmentPair> AlignmentList;
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AlignmentList alignmentList;
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alignmentList.push_back(AlignmentPair(osgText::Text::LEFT_TOP,"text->setAlignment(osgText::Text::LEFT_TOP);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::LEFT_CENTER,"text->setAlignment(osgText::Text::LEFT_CENTER);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::LEFT_BOTTOM,"text->setAlignment(osgText::Text::LEFT_BOTTOM);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::CENTER_TOP,"text->setAlignment(osgText::Text::CENTER_TOP);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::CENTER_CENTER,"text->setAlignment(osgText::Text::CENTER_CENTER);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::CENTER_BOTTOM,"text->setAlignment(osgText::Text::CENTER_BOTTOM);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::RIGHT_TOP,"text->setAlignment(osgText::Text::RIGHT_TOP);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::RIGHT_CENTER,"text->setAlignment(osgText::Text::RIGHT_CENTER);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::RIGHT_BOTTOM,"text->setAlignment(osgText::Text::RIGHT_BOTTOM);"));
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alignmentList.push_back(AlignmentPair(osgText::Text::BASE_LINE,"text->setAlignment(osgText::Text::BASE_LINE);//default"));
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osg::Sequence* sequence = new osg::Sequence;
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sequence->setMode(osg::Sequence::START);
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sequence->setInterval(osg::Sequence::LOOP, 0, -1);
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sequence->setDuration(1.0f, -1);
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// osg::Group* sequence = new osg::Group;
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// rootNode->addChild(sequence);
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{
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for(unsigned int i=osgText::Text::LEFT_TOP;i<=osgText::Text::BASE_LINE;i++)
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for(AlignmentList::iterator itr=alignmentList.begin();
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itr!=alignmentList.end();
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++itr)
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{
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osg::Geode* alignmentGeode = new osg::Geode;
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sequence->addChild(alignmentGeode);
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sequence->setTime(i, 1.0f);
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sequence->setTime(sequence->getNumChildren(), 1.0f);
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osgText::Text* text = new osgText::Text;
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text->setFont(font);
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text->setColor(characterSizeColor);
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text->setColor(alignmentSizeColor);
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text->setCharacterSize(alignmentCharacterSize);
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text->setPosition(cursor);
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text->setDrawMode(osgText::Text::TEXT|osgText::Text::ALIGNMENT|osgText::Text::BOUNDINGBOX);
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text->setAlignment((osgText::Text::AlignmentType)i);
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text->setAlignment(itr->first);
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text->setText(itr->second);
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text->setText("text->setAlignment();");
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alignmentGeode->addDrawable(text);
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cursor.y() += 40.0f;
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}
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}
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sequence->setMode(osg::Sequence::START);
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sequence->setInterval(osg::Sequence::LOOP, 0, -1);
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sequence->setDuration(1.0f, -1);
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rootNode->addChild(sequence);
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up different fonts...
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//
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cursor.x() = margin*2.0f;
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cursor.y() = margin*2.0f;
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osg::Vec4 fontColor(1.0f,0.5f,0.0f,1.0f);
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float fontCharacterSize = 20.0f;
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float spacing = 40.0f;
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{
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osgText::Text* text = new osgText::Text;
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text->setColor(fontColor);
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text->setPosition(cursor);
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text->setCharacterSize(fontCharacterSize);
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text->setFont(0);
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text->setText("text->setFont(0); // inbuilt font.");
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geode->addDrawable(text);
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cursor.x() = text->getBound().xMax() + spacing ;
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}
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{
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osgText::Font* arial = osgText::readFontFile("fonts/arial.ttf");
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osgText::Text* text = new osgText::Text;
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text->setColor(fontColor);
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text->setPosition(cursor);
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text->setCharacterSize(fontCharacterSize);
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text->setFont(arial);
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text->setText(arial!=0?
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"text->setFont(\"fonts/arial.ttf\");":
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"unable to load \"fonts/arial.ttf\"");
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geode->addDrawable(text);
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cursor.x() = text->getBound().xMax() + spacing ;
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}
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{
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osgText::Font* times = osgText::readFontFile("fonts/times.ttf");
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osgText::Text* text = new osgText::Text;
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text->setColor(fontColor);
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text->setPosition(cursor);
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text->setCharacterSize(fontCharacterSize);
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geode->addDrawable(text);
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text->setFont(times);
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text->setText(times!=0?
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"text->setFont(\"fonts/times.ttf\");":
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"unable to load \"fonts/times.ttf\"");
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cursor.x() = text->getBound().xMax() + spacing ;
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}
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cursor.x() = margin*2.0f;
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cursor.y() = margin;
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{
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osgText::Font* dirtydoz = osgText::readFontFile("fonts/dirtydoz.ttf");
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osgText::Text* text = new osgText::Text;
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text->setColor(fontColor);
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text->setPosition(cursor);
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text->setCharacterSize(fontCharacterSize);
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text->setFont(dirtydoz);
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text->setText(dirtydoz!=0?
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"text->setFont(\"fonts/dirtydoz.ttf\");":
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"unable to load \"fonts/dirtydoz.ttf\"");
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geode->addDrawable(text);
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cursor.x() = text->getBound().xMax() + spacing ;
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}
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{
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osgText::Font* fudd = osgText::readFontFile("fonts/fudd.ttf");
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osgText::Text* text = new osgText::Text;
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text->setColor(fontColor);
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text->setPosition(cursor);
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text->setCharacterSize(fontCharacterSize);
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text->setFont(fudd);
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text->setText(fudd!=0?
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"text->setFont(\"fonts/fudd.ttf\");":
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"unable to load \"fonts/fudd.ttf\"");
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geode->addDrawable(text);
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cursor.x() = text->getBound().xMax() + spacing ;
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}
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return rootNode;
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}
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osg::Group* create3DText()
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// create text which sits in 3D space such as would be inserted into a normal model
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osg::Group* create3DText(const osg::Vec3& center,float radius)
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{
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osg::Geode* geode = new osg::Geode;
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////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Examples of how to set up axis/orientation alignments
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//
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float characterSize=radius*0.2f;
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osg::Vec3 pos(center.x()-radius*.5f,center.y()-radius*.5f,center.z()-radius*.5f);
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osgText::Text* text1 = new osgText::Text;
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text1->setFont("fonts/times.ttf");
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text1->setCharacterSize(characterSize);
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text1->setPosition(pos);
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text1->setAxisAlignment(osgText::Text::XY_PLANE);
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text1->setText("XY_PLANE");
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geode->addDrawable(text1);
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osgText::Text* text2 = new osgText::Text;
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text2->setFont("fonts/times.ttf");
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text2->setPosition(osg::Vec3(0.0f,0.0f,0.0f));
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text2->setCharacterSize(characterSize);
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text2->setPosition(pos);
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text2->setAxisAlignment(osgText::Text::YZ_PLANE);
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text2->setText("YZ_PLANE");
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geode->addDrawable(text2);
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osgText::Text* text3 = new osgText::Text;
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text3->setFont("fonts/times.ttf");
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text3->setPosition(osg::Vec3(00.0f,00.0f,00.0f));
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text3->setCharacterSize(characterSize);
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text3->setPosition(pos);
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text3->setAxisAlignment(osgText::Text::XZ_PLANE);
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text3->setText("XZ_PLANE");
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geode->addDrawable(text3);
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osg::Vec3 screenCenter(300.0f,00.0f,00.0f);
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osgText::Text* text4 = new osgText::Text;
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text4->setFont("fonts/times.ttf");
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text4->setCharacterSize(characterSize);
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text4->setPosition(center);
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text4->setAxisAlignment(osgText::Text::SCREEN);
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text4->setPosition(screenCenter);
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text4->setText("SCREEN");
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geode->addDrawable(text4);
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osg::ShapeDrawable* shape = new osg::ShapeDrawable(new osg::Sphere(osg::Vec3(screenCenter),2.0f));
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osg::ShapeDrawable* shape = new osg::ShapeDrawable(new osg::Sphere(center,characterSize*0.2f));
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shape->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::ON);
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geode->addDrawable(shape);
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@@ -318,11 +466,18 @@ int main( int argc, char **argv )
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// prepare scene.
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{
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osg::Vec3 center(0.0f,0.0f,0.0f);
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float radius = 1.0f;
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if (rootNode.valid())
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{
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// optimize the scene graph, remove rendundent nodes and state etc.
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osgUtil::Optimizer optimizer;
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optimizer.optimize(rootNode.get());
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const osg::BoundingSphere& bs = rootNode->getBound();
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center = bs.center();
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radius = bs.radius();
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}
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// make sure the root node is group so we can add extra nodes to it.
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@@ -352,17 +507,12 @@ int main( int argc, char **argv )
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group->addChild(projection);
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}
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osg::MatrixTransform* scale = new osg::MatrixTransform;
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scale->setMatrix(osg::Matrix::scale(1.0f,1.0f,1.0f));
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scale->addChild(create3DText());
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group->addChild(scale);
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group->addChild(create3DText(center,radius));
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}
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// set the scene to render
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viewer.setSceneData(rootNode.get());
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osgDB::writeNodeFile(*rootNode,"test.osg");
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// create the windows and run the threads.
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viewer.realize(Producer::CameraGroup::ThreadPerCamera);
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