Hello, Robert!
File *src/osgText/Text3D.cp*p for OSG 3.4.0 inside!
Fixes glyphs's MODELVIEW matrices (positions, scales etc.) if state.getUse
*ModelView*AndProjection*Uniform*s() is true
Best wishes!
Konstantin S. Matveyev
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#include <osgText/Text3D>
#include <osg/Vec3d>
#include <osg/io_utils>
namespace osgText
{
Text3D::Text3D():
_renderMode(PER_GLYPH)
{
}
Text3D::Text3D(const Text3D & text3D, const osg::CopyOp & copyop):
osgText::TextBase(text3D, copyop),
_renderMode(text3D._renderMode)
{
computeGlyphRepresentation();
}
float Text3D::getCharacterDepth() const
{
if (!_style) return _characterHeight*0.1f;
else return _characterHeight * _style->getThicknessRatio();
}
void Text3D::setCharacterDepth(float characterDepth)
{
getOrCreateStyle()->setThicknessRatio(characterDepth / _characterHeight);
computeGlyphRepresentation();
}
void Text3D::accept(osg::Drawable::ConstAttributeFunctor& af) const
{
// ** 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)
{
// ** apply the vertex array
af.apply(osg::Drawable::VERTICES, it->_glyphGeometry->getVertexArray()->size(), &(it->_glyphGeometry->getVertexArray()->front()));
}
}
}
void Text3D::accept(osg::PrimitiveFunctor& pf) const
{
// ** 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::Vec3Array* vertices = it->_glyphGeometry->getVertexArray();
if (!vertices || vertices->empty())
continue; //skip over spaces
//pf.setVertexArray(it->_glyph->getVertexArray()->size(),&(it->_glyph->getVertexArray()->front()));
//////////////////////////////////////////////////////////////////////////
// now apply matrix to the glyphs.
osg::ref_ptr<osg::Vec3Array> transformedVertices = new osg::Vec3Array;
osg::Matrix matrix = _autoTransformCache[0]._matrix;//osg::Matrix();
matrix.preMultTranslate(it->_position);
transformedVertices->reserve(vertices->size());
for (osg::Vec3Array::iterator itr=vertices->begin(); itr!=vertices->end(); itr++)
{
transformedVertices->push_back((*itr)*matrix);
}
//////////////////////////////////////////////////////////////////////////
pf.setVertexArray(transformedVertices->size(),&(transformedVertices->front()));
// ** render the front face of the glyph
osg::Geometry::PrimitiveSetList & pslFront = it->_glyphGeometry->getFrontPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslFront.begin(), end = pslFront.end(); itr!=end; ++itr)
{
(*itr)->accept(pf);
}
// ** render the wall face of the glyph
osg::Geometry::PrimitiveSetList & pslWall = it->_glyphGeometry->getWallPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslWall.begin(), end=pslWall.end(); itr!=end; ++itr)
{
(*itr)->accept(pf);
}
// ** render the back face of the glyph
osg::Geometry::PrimitiveSetList & pslBack = it->_glyphGeometry->getBackPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslBack.begin(), end=pslBack.end(); itr!=end; ++itr)
{
(*itr)->accept(pf);
}
}
}
}
String::iterator Text3D::computeLastCharacterOnLine(osg::Vec2& cursor, String::iterator first,String::iterator last)
{
if (_font.valid() == false) return last;
bool kerning = true;
unsigned int previous_charcode = 0;
String::iterator lastChar = first;
float maximumHeight = _maximumHeight;
float maximumWidth = _maximumWidth;
float hr = 1.0f;
float wr = 1.0f;
for(bool outOfSpace=false;lastChar!=last;++lastChar)
{
unsigned int charcode = *lastChar;
if (charcode=='\n')
{
return lastChar;
}
Glyph3D* glyph = _font->getGlyph3D(charcode);
if (glyph)
{
const osg::BoundingBox & bb = glyph->getBoundingBox();
if (_layout==RIGHT_TO_LEFT)
{
cursor.x() -= glyph->getHorizontalAdvance() * wr;
}
// adjust cursor position w.r.t any kerning.
if (kerning && previous_charcode)
{
switch(_layout)
{
case LEFT_TO_RIGHT:
{
osg::Vec2 delta(_font->getKerning(previous_charcode,charcode,_kerningType));
cursor.x() += delta.x() * wr;
cursor.y() += delta.y() * hr;
break;
}
case RIGHT_TO_LEFT:
{
osg::Vec2 delta(_font->getKerning(charcode,previous_charcode,_kerningType));
cursor.x() -= delta.x() * wr;
cursor.y() -= delta.y() * hr;
break;
}
case VERTICAL:
break; // no kerning when vertical.
}
}
osg::Vec2 local = cursor;
switch(_layout)
{
case LEFT_TO_RIGHT:
{
if (maximumWidth>0.0f && local.x()+bb.xMax()>maximumWidth) outOfSpace=true;
if(maximumHeight>0.0f && local.y()<-maximumHeight) outOfSpace=true;
break;
}
case RIGHT_TO_LEFT:
{
if (maximumWidth>0.0f && local.x()+bb.xMin()<-maximumWidth) outOfSpace=true;
if(maximumHeight>0.0f && local.y()<-maximumHeight) outOfSpace=true;
break;
}
case VERTICAL:
if (maximumHeight>0.0f && local.y()<-maximumHeight) outOfSpace=true;
break;
}
// => word boundary detection & wrapping
if (outOfSpace) break;
// move the cursor onto the next character.
switch(_layout)
{
case LEFT_TO_RIGHT: cursor.x() += glyph->getHorizontalAdvance() * wr; break;
case RIGHT_TO_LEFT: break;
case VERTICAL: cursor.y() -= glyph->getVerticalAdvance() * hr; break;
}
previous_charcode = charcode;
}
}
// word boundary detection & wrapping
if (lastChar!=last)
{
String::iterator lastValidChar = lastChar;
String::iterator prevChar;
while (lastValidChar != first){
prevChar = lastValidChar - 1;
// last char is after a hyphen
if(*lastValidChar == '-')
return lastValidChar + 1;
// last char is start of whitespace
if((*lastValidChar == ' ' || *lastValidChar == '\n') && (*prevChar != ' ' && *prevChar != '\n'))
return lastValidChar;
// Subtract off glyphs from the cursor position (to correctly center text)
if(*prevChar != '-')
{
Glyph3D* glyph = _font->getGlyph3D(*prevChar);
if (glyph)
{
switch(_layout)
{
case LEFT_TO_RIGHT: cursor.x() -= glyph->getHorizontalAdvance() * wr; break;
case RIGHT_TO_LEFT: cursor.x() += glyph->getHorizontalAdvance() * wr; break;
case VERTICAL: cursor.y() += glyph->getVerticalAdvance() * wr; break;
}
}
}
lastValidChar = prevChar;
}
}
return lastChar;
}
void Text3D::computeGlyphRepresentation()
{
if (_font.valid() == false) return;
_textRenderInfo.clear();
_lineCount = 0;
if (_text.empty())
{
_textBB.set(0,0,0, 0,0,0);//no size text
TextBase::computePositions(); //to reset the origin
return;
}
// initialize bounding box, it will be expanded during glyph position calculation
_textBB.init();
float hr = 1.0f;
float wr = 1.0f;
osg::Vec2 startOfLine_coords(0.0f,0.0f);
osg::Vec2 cursor(startOfLine_coords);
osg::Vec2 local(0.0f,0.0f);
osg::Vec2 startOffset(0.0f,0.0f);
unsigned int previous_charcode = 0;
unsigned int linelength = 0;
bool kerning = true;
unsigned int lineNumber = 0;
for(String::iterator itr=_text.begin(); itr!=_text.end(); )
{
_textRenderInfo.resize(lineNumber + 1);
LineRenderInfo & currentLineRenderInfo = _textRenderInfo.back();
// record the start of the current line
String::iterator startOfLine_itr = itr;
// find the end of the current line.
osg::Vec2 endOfLine_coords(cursor);
String::iterator endOfLine_itr = computeLastCharacterOnLine(endOfLine_coords, itr,_text.end());
// ** position the cursor function to the Layout and the alignement
TextBase::positionCursor(endOfLine_coords, cursor, (unsigned int) (endOfLine_itr - startOfLine_itr));
if (itr!=endOfLine_itr)
{
for(;itr!=endOfLine_itr;++itr)
{
unsigned int charcode = *itr;
Glyph3D* glyph = _font->getGlyph3D(charcode);
if (glyph)
{
const osg::BoundingBox & bb = glyph->getBoundingBox();
if (_layout==RIGHT_TO_LEFT)
{
cursor.x() -= glyph->getHorizontalAdvance() * wr;
}
// adjust cursor position w.r.t any kerning.
if (kerning && previous_charcode)
{
switch(_layout)
{
case LEFT_TO_RIGHT:
{
osg::Vec2 delta(_font->getKerning(previous_charcode,charcode,_kerningType));
cursor.x() += delta.x() * wr;
cursor.y() += delta.y() * hr;
break;
}
case RIGHT_TO_LEFT:
{
osg::Vec2 delta(_font->getKerning(charcode,previous_charcode,_kerningType));
cursor.x() -= delta.x() * wr;
cursor.y() -= delta.y() * hr;
break;
}
case VERTICAL:
break; // no kerning when vertical.
}
}
local = cursor;
// move the cursor onto the next character.
// also expand bounding box
switch (_layout)
{
case LEFT_TO_RIGHT:
_textBB.expandBy(osg::Vec3(cursor.x() + bb.xMin()*wr, cursor.y() + bb.yMin()*hr, 0.0f)); //lower left corner
_textBB.expandBy(osg::Vec3(cursor.x() + bb.xMax()*wr, cursor.y() + bb.yMax()*hr, 0.0f)); //upper right corner
cursor.x() += glyph->getHorizontalAdvance() * wr;
break;
case VERTICAL:
_textBB.expandBy(osg::Vec3(cursor.x(), cursor.y(), 0.0f)); //upper left corner
_textBB.expandBy(osg::Vec3(cursor.x() + glyph->getWidth()*wr, cursor.y() - glyph->getHeight()*hr, 0.0f)); //lower right corner
cursor.y() -= glyph->getVerticalAdvance() * hr;
break;
case RIGHT_TO_LEFT:
_textBB.expandBy(osg::Vec3(cursor.x()+bb.xMax()*wr, cursor.y() + bb.yMax()*hr, 0.0f)); //upper right corner
_textBB.expandBy(osg::Vec3(cursor.x()+bb.xMin()*wr, cursor.y()+bb.yMin()*hr, 0.0f)); //lower left corner
break;
}
osg::Vec3 pos = osg::Vec3(local.x(), local.y(), 0.0f);
GlyphGeometry* glyphGeometry = glyph->getGlyphGeometry(_style.get());
currentLineRenderInfo.push_back(Text3D::GlyphRenderInfo(glyphGeometry, pos));
previous_charcode = charcode;
}
}
}
else
{
++itr;
}
// skip over spaces
while ((itr!=_text.end()) && (*itr==' ')) ++itr;
// skip over return
if ((itr!=_text.end()) && (*itr=='\n')) ++itr;
// move to new line.
switch(_layout)
{
case LEFT_TO_RIGHT:
case RIGHT_TO_LEFT:
{
startOfLine_coords.y() -= (1.0 + _lineSpacing) * hr;
++_lineCount;
break;
}
case VERTICAL:
{
startOfLine_coords.x() += _characterHeight * (1.0 + _lineSpacing) * wr;
// because _lineCount is the max vertical no. of characters....
_lineCount = (_lineCount >linelength)?_lineCount:linelength;
break;
}
default:
break;
}
cursor = startOfLine_coords;
previous_charcode = 0;
++lineNumber;
}
float thickness = _style.valid() ? _style->getThicknessRatio() : 0.1f;
_textBB.zMin() = -thickness;
TextBase::computePositions();
}
osg::BoundingBox Text3D::computeBoundingBox() const
{
osg::BoundingBox bbox;
if (_textBB.valid())
{
for(unsigned int i=0;i<_autoTransformCache.size();++i)
{
osg::Matrix& matrix = _autoTransformCache[i]._matrix;
bbox.expandBy(_textBB.corner(0)*matrix);
bbox.expandBy(_textBB.corner(1)*matrix);
bbox.expandBy(_textBB.corner(2)*matrix);
bbox.expandBy(_textBB.corner(3)*matrix);
bbox.expandBy(_textBB.corner(4)*matrix);
bbox.expandBy(_textBB.corner(5)*matrix);
bbox.expandBy(_textBB.corner(6)*matrix);
bbox.expandBy(_textBB.corner(7)*matrix);
}
}
return bbox;
}
void Text3D::computePositions(unsigned int contextID) const
{
if (_font.valid() == false) return;
switch(_alignment)
{
case LEFT_TOP: _offset.set(_textBB.xMin(),_textBB.yMax(),0.0f); break;
case LEFT_CENTER: _offset.set(_textBB.xMin(),(_textBB.yMax()+_textBB.yMin())*0.5f,0.0f); break;
case LEFT_BOTTOM: _offset.set(_textBB.xMin(),_textBB.yMin(),0.0f); break;
case CENTER_TOP: _offset.set((_textBB.xMax()+_textBB.xMin())*0.5f,_textBB.yMax(),0.0f); break;
case CENTER_CENTER: _offset.set((_textBB.xMax()+_textBB.xMin())*0.5f,(_textBB.yMax()+_textBB.yMin())*0.5f,0.0f); break;
case CENTER_BOTTOM: _offset.set((_textBB.xMax()+_textBB.xMin())*0.5f,_textBB.yMin(),0.0f); break;
case RIGHT_TOP: _offset.set(_textBB.xMax(),_textBB.yMax(),0.0f); break;
case RIGHT_CENTER: _offset.set(_textBB.xMax(),(_textBB.yMax()+_textBB.yMin())*0.5f,0.0f); break;
case RIGHT_BOTTOM: _offset.set(_textBB.xMax(),_textBB.yMin(),0.0f); break;
case LEFT_BASE_LINE: _offset.set(0.0f,0.0f,0.0f); break;
case CENTER_BASE_LINE: _offset.set((_textBB.xMax()+_textBB.xMin())*0.5f,0.0f,0.0f); break;
case RIGHT_BASE_LINE: _offset.set(_textBB.xMax(),0.0f,0.0f); break;
case LEFT_BOTTOM_BASE_LINE: _offset.set(0.0f,-_characterHeight*(1.0 + _lineSpacing)*(_lineCount-1),0.0f); break;
case CENTER_BOTTOM_BASE_LINE: _offset.set((_textBB.xMax()+_textBB.xMin())*0.5f,-_characterHeight*(1.0 + _lineSpacing)*(_lineCount-1),0.0f); break;
case RIGHT_BOTTOM_BASE_LINE: _offset.set(_textBB.xMax(),-_characterHeight*(1.0 + _lineSpacing)*(_lineCount-1),0.0f); break;
}
AutoTransformCache& atc = _autoTransformCache[contextID];
osg::Matrix& matrix = atc._matrix;
osg::Vec3 scaleVec(_characterHeight / getCharacterAspectRatio(), _characterHeight , _characterHeight);
matrix.makeTranslate(-_offset);
matrix.postMultScale(scaleVec);
matrix.postMultRotate(_rotation);
matrix.postMultTranslate(_position);
_normal = osg::Matrix::transform3x3(osg::Vec3(0.0f,0.0f,1.0f),matrix);
_normal.normalize();
const_cast<Text3D*>(this)->dirtyBound();
}
void Text3D::drawImplementation(osg::RenderInfo& renderInfo) const
{
osg::State & state = *renderInfo.getState();
unsigned int contextID = state.getContextID();
// ** save the previous modelview matrix
osg::Matrix previous(state.getModelViewMatrix());
// ** get the modelview for this context
osg::Matrix modelview(_autoTransformCache[contextID]._matrix);
// ** mult previous by the modelview for this context
modelview.postMult(previous);
// ** apply this new modelview matrix
state.applyModelViewMatrix(modelview);
// if we are using osg::Program which requires OSG's generated uniforms to track
// modelview and projection matrices then apply them now.
if (state.getUseModelViewAndProjectionUniforms()) state.applyModelViewAndProjectionUniformsIfRequired();
osg::GLBeginEndAdapter& gl = (state.getGLBeginEndAdapter());
if (_drawMode & BOUNDINGBOX)
{
if (_textBB.valid())
{
gl.Color4fv(_color.ptr());
osg::Vec3 c000(osg::Vec3(_textBB.xMin(),_textBB.yMin(),_textBB.zMax()));
osg::Vec3 c100(osg::Vec3(_textBB.xMax(),_textBB.yMin(),_textBB.zMax()));
osg::Vec3 c110(osg::Vec3(_textBB.xMax(),_textBB.yMax(),_textBB.zMax()));
osg::Vec3 c010(osg::Vec3(_textBB.xMin(),_textBB.yMax(),_textBB.zMax()));
osg::Vec3 c001(osg::Vec3(_textBB.xMin(),_textBB.yMin(),_textBB.zMin()));
osg::Vec3 c101(osg::Vec3(_textBB.xMax(),_textBB.yMin(),_textBB.zMin()));
osg::Vec3 c111(osg::Vec3(_textBB.xMax(),_textBB.yMax(),_textBB.zMin()));
osg::Vec3 c011(osg::Vec3(_textBB.xMin(),_textBB.yMax(),_textBB.zMin()));
gl.Begin(GL_LINE_LOOP);
gl.Vertex3fv(c000.ptr());
gl.Vertex3fv(c100.ptr());
gl.Vertex3fv(c110.ptr());
gl.Vertex3fv(c010.ptr());
gl.End();
gl.Begin(GL_LINE_LOOP);
gl.Vertex3fv(c001.ptr());
gl.Vertex3fv(c011.ptr());
gl.Vertex3fv(c111.ptr());
gl.Vertex3fv(c101.ptr());
gl.End();
gl.Begin(GL_LINES);
gl.Vertex3fv(c000.ptr());
gl.Vertex3fv(c001.ptr());
gl.Vertex3fv(c100.ptr());
gl.Vertex3fv(c101.ptr());
gl.Vertex3fv(c110.ptr());
gl.Vertex3fv(c111.ptr());
gl.Vertex3fv(c010.ptr());
gl.Vertex3fv(c011.ptr());
gl.End();
}
}
if (_drawMode & ALIGNMENT)
{
float cursorsize = _characterHeight*0.5f;
osg::Vec3 hl(osg::Vec3(_offset.x()-cursorsize,_offset.y(),_offset.z()));
osg::Vec3 hr(osg::Vec3(_offset.x()+cursorsize,_offset.y(),_offset.z()));
osg::Vec3 vt(osg::Vec3(_offset.x(),_offset.y()-cursorsize,_offset.z()));
osg::Vec3 vb(osg::Vec3(_offset.x(),_offset.y()+cursorsize,_offset.z()));
gl.Color4fv(_color.ptr());
gl.Begin(GL_LINES);
gl.Vertex3fv(hl.ptr());
gl.Vertex3fv(hr.ptr());
gl.Vertex3fv(vt.ptr());
gl.Vertex3fv(vb.ptr());
gl.End();
}
if (_drawMode & TEXT)
{
state.disableColorPointer();
state.Color(_color.r(),_color.g(),_color.b(),_color.a());
renderInfo.getState()->disableAllVertexArrays();
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE) && !defined(OSG_GL3_AVAILABLE)
renderInfo.getState()->applyMode(GL_NORMALIZE, true);
#endif
switch(_renderMode)
{
case PER_FACE: renderPerFace(*renderInfo.getState()); break;
case PER_GLYPH:
default: renderPerGlyph(*renderInfo.getState()); break;
}
}
// restore the previous modelview matrix
state.applyModelViewMatrix(previous);
// if we are using osg::Program which requires OSG's generated uniforms to track
// modelview and projection matrices then apply them now.
if (state.getUseModelViewAndProjectionUniforms()) state.applyModelViewAndProjectionUniformsIfRequired();
}
void Text3D::renderPerGlyph(osg::State & state) const
{
osg::Matrix original_modelview = state.getModelViewMatrix();
const osg::StateSet* frontStateSet = getStateSet();
const osg::StateSet* wallStateSet = getWallStateSet();
const osg::StateSet* backStateSet = getBackStateSet();
bool applyMainColor = false;
if (wallStateSet==0) wallStateSet = frontStateSet;
else if (wallStateSet->getAttribute(osg::StateAttribute::MATERIAL)!=0) applyMainColor = true;
if (backStateSet==0) backStateSet = frontStateSet;
else if (backStateSet->getAttribute(osg::StateAttribute::MATERIAL)!=0) applyMainColor = true;
// ** 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::Matrix matrix(original_modelview);
matrix.preMultTranslate(osg::Vec3d(it->_position.x(), it->_position.y(), it->_position.z()));
state.applyModelViewMatrix(matrix);
// if we are using osg::Program which requires OSG's generated uniforms to track
// modelview and projection matrices then apply them now.
if (state.getUseModelViewAndProjectionUniforms()) state.applyModelViewAndProjectionUniformsIfRequired();
state.lazyDisablingOfVertexAttributes();
// ** apply the vertex array
state.setVertexPointer(it->_glyphGeometry->getVertexArray());
state.setNormalPointer(it->_glyphGeometry->getNormalArray());
state.applyDisablingOfVertexAttributes();
if (frontStateSet!=backStateSet)
{
state.apply(frontStateSet);
if (applyMainColor) state.Color(_color.r(),_color.g(),_color.b(),_color.a());
}
osg::Geometry::PrimitiveSetList & pslFront = it->_glyphGeometry->getFrontPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslFront.begin(), end = pslFront.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
if (wallStateSet!=frontStateSet) state.apply(wallStateSet);
// ** render the wall face of the glyph
osg::Geometry::PrimitiveSetList & pslWall = it->_glyphGeometry->getWallPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslWall.begin(), end=pslWall.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
if (backStateSet!=wallStateSet)
{
state.apply(backStateSet);
if (applyMainColor) state.Color(_color.r(),_color.g(),_color.b(),_color.a());
}
osg::Geometry::PrimitiveSetList & pslBack = it->_glyphGeometry->getBackPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslBack.begin(), end=pslBack.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
}
}
}
void Text3D::renderPerFace(osg::State & state) const
{
osg::Matrix original_modelview = state.getModelViewMatrix();
#if 0
// ** render all front faces
state.Normal(0.0f,0.0f,1.0f);
#endif
const osg::StateSet* frontStateSet = getStateSet();
const osg::StateSet* wallStateSet = getWallStateSet();
const osg::StateSet* backStateSet = getBackStateSet();
bool applyMainColor = false;
if (wallStateSet==0) wallStateSet = frontStateSet;
else if (wallStateSet->getAttribute(osg::StateAttribute::MATERIAL)!=0) applyMainColor = true;
if (backStateSet==0) backStateSet = frontStateSet;
else if (backStateSet->getAttribute(osg::StateAttribute::MATERIAL)!=0) applyMainColor = true;
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::Matrix matrix(original_modelview);
matrix.preMultTranslate(osg::Vec3d(it->_position.x(), it->_position.y(), it->_position.z()));
state.applyModelViewMatrix(matrix);
// if we are using osg::Program which requires OSG's generated uniforms to track
// modelview and projection matrices then apply them now.
if (state.getUseModelViewAndProjectionUniforms()) state.applyModelViewAndProjectionUniformsIfRequired();
state.setVertexPointer(it->_glyphGeometry->getVertexArray());
state.setNormalPointer(it->_glyphGeometry->getNormalArray());
// ** render the front face of the glyph
osg::Geometry::PrimitiveSetList & psl = it->_glyphGeometry->getFrontPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=psl.begin(), end=psl.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
}
}
if (wallStateSet!=frontStateSet) state.apply(wallStateSet);
// ** render all wall face of the text
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::Matrix matrix(original_modelview);
matrix.preMultTranslate(osg::Vec3d(it->_position.x(), it->_position.y(), it->_position.z()));
state.applyModelViewMatrix(matrix);
// if we are using osg::Program which requires OSG's generated uniforms to track
// modelview and projection matrices then apply them now.
if (state.getUseModelViewAndProjectionUniforms()) state.applyModelViewAndProjectionUniformsIfRequired();
state.setVertexPointer(it->_glyphGeometry->getVertexArray());
state.setNormalPointer(it->_glyphGeometry->getNormalArray());
const osg::Geometry::PrimitiveSetList & psl = it->_glyphGeometry->getWallPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=psl.begin(), end=psl.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
}
}
#if 0
state.disableNormalPointer();
// ** render all back face of the text
state.Normal(0.0f,0.0f,-1.0f);
#endif
if (backStateSet!=wallStateSet)
{
state.apply(backStateSet);
if (applyMainColor) state.Color(_color.r(),_color.g(),_color.b(),_color.a());
}
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::Matrix matrix(original_modelview);
matrix.preMultTranslate(osg::Vec3d(it->_position.x(), it->_position.y(), it->_position.z()));
state.applyModelViewMatrix(matrix);
// if we are using osg::Program which requires OSG's generated uniforms to track
// modelview and projection matrices then apply them now.
if (state.getUseModelViewAndProjectionUniforms()) state.applyModelViewAndProjectionUniformsIfRequired();
state.setVertexPointer(it->_glyphGeometry->getVertexArray());
state.setNormalPointer(it->_glyphGeometry->getNormalArray());
// ** render the back face of the glyph
const osg::Geometry::PrimitiveSetList & psl = it->_glyphGeometry->getBackPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=psl.begin(), end=psl.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
}
}
}
void Text3D::setThreadSafeRefUnref(bool threadSafe)
{
TextBase::setThreadSafeRefUnref(threadSafe);
if (_font.valid()) _font->setThreadSafeRefUnref(threadSafe);
}
void Text3D::resizeGLObjectBuffers(unsigned int maxSize)
{
OSG_INFO<<"Text3D::resizeGLObjectBuffers("<<maxSize<<")"<<std::endl;
TextBase::resizeGLObjectBuffers(maxSize);
if (_font.valid()) _font->resizeGLObjectBuffers(maxSize);
TextBase::computePositions();
}
void Text3D::releaseGLObjects(osg::State* state) const
{
TextBase::releaseGLObjects(state);
if (_font.valid()) _font->releaseGLObjects(state);
}
}
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