diff --git a/libs_required/ACG/Scenegraph/LineNode.cc b/libs_required/ACG/Scenegraph/LineNode.cc
index 99f0e2596cf7405868794961fa3e2ad17c3c4c45..0f5ebe7c77c755db966b07942be01328f13861cc 100644
--- a/libs_required/ACG/Scenegraph/LineNode.cc
+++ b/libs_required/ACG/Scenegraph/LineNode.cc
@@ -232,6 +232,11 @@ void
LineNode::
draw(GLState& _state , const DrawModes::DrawMode& _drawMode)
{
+ if(_state.compatibilityProfile())
+ drawCompat(_state, _drawMode);
+ else
+ {
+ /* //Node Based Drawing is not supported on Core profiles
if (_drawMode & DrawModes::WIREFRAME)
{
ACG::GLState::disable(GL_LIGHTING);
@@ -343,6 +348,7 @@ draw(GLState& _state , const DrawModes::DrawMode& _drawMode)
}
//glEnd();
+ }*/
}
}
@@ -364,13 +370,15 @@ leave(GLState& _state , const DrawModes::DrawMode& _drawMode)
void LineNode::pick(GLState& _state , PickTarget _target)
{
+ if(_state.compatibilityProfile())
+ pickCompat(_state, _target);
+ else
+ {
if (n_points() == 0)
return;
// Bind the vertex array
ACG::GLState::bindBuffer(GL_ARRAY_BUFFER_ARB, 0);
- ACG::GLState::vertexPointer( &(points_)[0] );
- ACG::GLState::enableClientState(GL_VERTEX_ARRAY);
const size_t n_edges = n_points() - 1;
@@ -393,53 +401,14 @@ void LineNode::pick(GLState& _state , PickTarget _target)
default:
break;
}
-
- //Disable the vertex array
- ACG::GLState::disableClientState(GL_VERTEX_ARRAY);
+ }
}
//----------------------------------------------------------------------------
void LineNode::pick_edges(GLState& _state, unsigned int _offset)
{
- // Check if we have any edges to draw (% 0 causes division by zero on windows)
- if (n_points() < 2)
- return;
-
- const float line_width_old = _state.line_width();
- _state.set_line_width(picking_line_width());
- _state.pick_set_name (0);
-
- glDepthRange(0.0, 0.99);
-
- if (line_mode_ == PolygonMode)
- {
- const size_t n_edges = n_points() - 1;
- for (size_t i = 0; i < n_edges; ++i)
- {
- _state.pick_set_name(i + _offset);
- glBegin(GL_LINES);
- glArrayElement(static_cast<GLint>(i));
- glArrayElement(static_cast<GLint>(i + 1));
- glEnd();
- }
- }
- else if (line_mode_ == LineSegmentsMode)
- {
- const size_t n_edges = n_points() / 2;
- for (size_t i = 0; i < n_edges; ++i)
- {
- _state.pick_set_name(i + _offset);
- glBegin(GL_LINES);
- glArrayElement(static_cast<GLint>(2*i));
- glArrayElement(static_cast<GLint>(2*i + 1));
- glEnd();
- }
- }
-
- glDepthRange(0.0, 1.0);
-
- _state.set_line_width(line_width_old);
+ //TODO: implement edge picking for lines in CoreProfile
}
//----------------------------------------------------------------------------
diff --git a/libs_required/ACG/Scenegraph/LineNode.hh b/libs_required/ACG/Scenegraph/LineNode.hh
index 915e677488c4290c31773e6779b4bc744dc2c452..93806acb422a433353f741aca64ba6062599e621 100644
--- a/libs_required/ACG/Scenegraph/LineNode.hh
+++ b/libs_required/ACG/Scenegraph/LineNode.hh
@@ -136,12 +136,14 @@ public:
/// draw lines and normals
void draw(GLState& _state, const DrawModes::DrawMode& _drawMode);
+ void drawCompat(GLState& _state, const DrawModes::DrawMode& _drawMode);
/// reset depth function to what it was before enter()
void leave(GLState& _state, const DrawModes::DrawMode& _drawMode);
/// Draw the line using the GL picking name stack
void pick(GLState& _state , PickTarget _target);
+ void pickCompat(GLState& _state , PickTarget _target);
/// reserve mem for _n lines
void reserve_lines(unsigned int _n) { points_.reserve(2*_n); }
@@ -222,6 +224,7 @@ protected:
void pick_vertices(GLState& _state);
void pick_edges (GLState& _state, unsigned int _offset);
+ void pick_edgesCompat (GLState& _state, unsigned int _offset);
/// creates the vbo only if update was requested
void createVBO();
diff --git a/libs_required/ACG/Scenegraph/LineNodeGLCompat.cc b/libs_required/ACG/Scenegraph/LineNodeGLCompat.cc
new file mode 100644
index 0000000000000000000000000000000000000000..2c8c4834258c9b36d593f41180008c79f5c3641d
--- /dev/null
+++ b/libs_required/ACG/Scenegraph/LineNodeGLCompat.cc
@@ -0,0 +1,274 @@
+/*===========================================================================*\
+ * *
+ * OpenFlipper *
+ * Copyright (c) 2001-2015, RWTH-Aachen University *
+ * Department of Computer Graphics and Multimedia *
+ * All rights reserved. *
+ * www.openflipper.org *
+ * *
+ *---------------------------------------------------------------------------*
+ * This file is part of OpenFlipper. *
+ *---------------------------------------------------------------------------*
+ * *
+ * Redistribution and use in source and binary forms, with or without *
+ * modification, are permitted provided that the following conditions *
+ * are met: *
+ * *
+ * 1. Redistributions of source code must retain the above copyright notice, *
+ * this list of conditions and the following disclaimer. *
+ * *
+ * 2. Redistributions in binary form must reproduce the above copyright *
+ * notice, this list of conditions and the following disclaimer in the *
+ * documentation and/or other materials provided with the distribution. *
+ * *
+ * 3. Neither the name of the copyright holder nor the names of its *
+ * contributors may be used to endorse or promote products derived from *
+ * this software without specific prior written permission. *
+ * *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
+ * *
+\*===========================================================================*/
+
+/*===========================================================================*\
+ * *
+ * $Revision$ *
+ * $Author$ *
+ * $Date$ *
+ * *
+\*===========================================================================*/
+
+
+
+
+//=============================================================================
+//
+// CLASS LineNode - IMPLEMENTATION
+//
+//=============================================================================
+
+//== INCLUDES =================================================================
+#include <ACG/GL/acg_glew.hh>
+#include "LineNode.hh"
+#include <ACG/GL/IRenderer.hh>
+
+//== NAMESPACES ===============================================================
+
+namespace ACG {
+namespace SceneGraph {
+
+//== IMPLEMENTATION ==========================================================
+
+void
+LineNode::
+drawCompat(GLState& _state , const DrawModes::DrawMode& _drawMode)
+{
+ if (_drawMode & DrawModes::WIREFRAME)
+ {
+ ACG::GLState::disable(GL_LIGHTING);
+
+
+ // if (line_mode_ == LineSegmentsMode)
+ // glBegin(GL_LINES);
+ // else
+ // glBegin(GL_LINE_STRIP);
+
+
+ if (line_mode_ == LineSegmentsMode)
+ {
+ // first check if (new standard) 4-channel colors are specified
+ if( (points_.size()/2 == colors4f_.size()) )
+ {
+ // enable blending of lines
+ GLboolean blendb;
+ glGetBooleanv( GL_BLEND, &blendb);
+ glEnable(GL_BLEND);
+ // blend ontop of prev. drawn mesh
+ GLboolean depthmaskb;
+ glGetBooleanv( GL_DEPTH_WRITEMASK, &depthmaskb);
+ glDepthMask(GL_FALSE);
+
+ glBegin(GL_LINES);
+
+ ConstPointIter p_it=points_.begin(), p_end=points_.end();
+ ConstColor4fIter c_it=colors4f_.begin();
+
+ Color4f c(1.0f,1.0f,1.0f,1.0f);
+ if(c_it != colors4f_.end()) {
+ c = *c_it;
+ }
+
+ int cnt = 0;
+ for (; p_it!=p_end; ++p_it)
+ {
+ if ((cnt > 0) && (cnt % 2 == 0) && (c_it+1) != colors4f_.end()) {
+ ++c_it;
+ c = *c_it;
+ }
+
+ glColor(c);
+ glVertex(*p_it);
+
+ ++cnt;
+ }
+
+ glEnd();
+
+ // disable blending of lines
+ if( blendb == GL_FALSE )
+ glDisable(GL_BLEND);
+
+ // enable depth mask
+ if( depthmaskb == GL_TRUE )
+ glDepthMask(GL_TRUE);
+
+ }
+ else if ((line_mode_ == LineSegmentsMode) && (points_.size()/2 == colors_.size()) )
+ {
+ glBegin(GL_LINES);
+ ConstPointIter p_it=points_.begin(), p_end=points_.end();
+ ConstColorIter c_it=colors_.begin();
+
+ Color c((char)255, (char)255, (char)255);
+ if(c_it != colors_.end()) {
+ c = *c_it;
+ }
+
+ int cnt = 0;
+ for (; p_it!=p_end; ++p_it)
+ {
+ if ((cnt > 0) && (cnt % 2 == 0) && (c_it+1) != colors_.end()) {
+ ++c_it;
+ c = *c_it;
+ }
+
+ glColor(c);
+ glVertex(*p_it);
+
+ ++cnt;
+ }
+ glEnd();
+ }
+ else
+ {
+ glBegin(GL_LINES);
+
+ ConstPointIter p_it=points_.begin(), p_end=points_.end();
+
+ for (; p_it!=p_end; ++p_it)
+ {
+ glVertex(*p_it);
+ }
+
+ glEnd();
+ }
+ }
+ else
+ {
+ _state.set_color(_state.base_color());
+ glBegin(GL_LINE_STRIP);
+ ConstPointIter p_it=points_.begin(), p_end=points_.end();
+ for (; p_it!=p_end; ++p_it)
+ glVertex(*p_it);
+ glEnd();
+ }
+
+ //glEnd();
+ }
+}
+
+//----------------------------------------------------------------------------
+
+void LineNode::pickCompat(GLState& _state , PickTarget _target)
+{
+ if (n_points() == 0)
+ return;
+
+ // Bind the vertex array
+ ACG::GLState::bindBuffer(GL_ARRAY_BUFFER_ARB, 0);
+ ACG::GLState::vertexPointer( &(points_)[0] );
+ ACG::GLState::enableClientState(GL_VERTEX_ARRAY);
+
+ const size_t n_edges = n_points() - 1;
+
+ switch (_target)
+ {
+ case PICK_EDGE:
+ {
+ _state.pick_set_maximum (n_edges);
+ pick_edgesCompat(_state, 0);
+ break;
+ }
+
+ case PICK_ANYTHING:
+ {
+ _state.pick_set_maximum (n_edges);
+ pick_edgesCompat(_state, 0);
+ break;
+ }
+
+ default:
+ break;
+ }
+
+ //Disable the vertex array
+ ACG::GLState::disableClientState(GL_VERTEX_ARRAY);
+}
+
+//----------------------------------------------------------------------------
+
+void LineNode::pick_edgesCompat(GLState& _state, unsigned int _offset)
+{
+ // Check if we have any edges to draw (% 0 causes division by zero on windows)
+ if (n_points() < 2)
+ return;
+
+ const float line_width_old = _state.line_width();
+ _state.set_line_width(picking_line_width());
+ _state.pick_set_name (0);
+
+ glDepthRange(0.0, 0.99);
+
+ if (line_mode_ == PolygonMode)
+ {
+ const size_t n_edges = n_points() - 1;
+ for (size_t i = 0; i < n_edges; ++i)
+ {
+ _state.pick_set_name(i + _offset);
+ glBegin(GL_LINES);
+ glArrayElement(static_cast<GLint>(i));
+ glArrayElement(static_cast<GLint>(i + 1));
+ glEnd();
+ }
+ }
+ else if (line_mode_ == LineSegmentsMode)
+ {
+ const size_t n_edges = n_points() / 2;
+ for (size_t i = 0; i < n_edges; ++i)
+ {
+ _state.pick_set_name(i + _offset);
+ glBegin(GL_LINES);
+ glArrayElement(static_cast<GLint>(2*i));
+ glArrayElement(static_cast<GLint>(2*i + 1));
+ glEnd();
+ }
+ }
+
+ glDepthRange(0.0, 1.0);
+
+ _state.set_line_width(line_width_old);
+}
+
+//=============================================================================
+} // namespace SceneGraph
+} // namespace ACG
+//=============================================================================
diff --git a/libs_required/ACG/Scenegraph/TextNode.cc b/libs_required/ACG/Scenegraph/TextNode.cc
index dabbaf88b5c742253b4f5e48248a6c163902cb15..18de3ebfc3959a8dbdad15eced659da897eccc26 100644
--- a/libs_required/ACG/Scenegraph/TextNode.cc
+++ b/libs_required/ACG/Scenegraph/TextNode.cc
@@ -246,31 +246,29 @@ createMap() {
void
TextNode::
-enter(GLState& _state, const DrawModes::DrawMode& /*_drawmode*/) {
+enter(GLState& _state, const DrawModes::DrawMode& _drawmode) {
+ if(_state.compatibilityProfile())
+ enterCompat(_state,_drawmode);
+ else
+ {
if (text_.empty())
return;
// store current gl state
cullFaceEnabled_ = glIsEnabled(GL_CULL_FACE);
- texture2dEnabled_ = glIsEnabled(GL_TEXTURE_2D);
blendEnabled_ = glIsEnabled(GL_BLEND);
depthEnabled_ = glIsEnabled(GL_DEPTH_TEST);
- alphaTest_ = glIsEnabled(GL_ALPHA_TEST);
- if (alphaTest_)
- ACG::GLState::getAlphaFunc(&alphaTestFunc_, &alphaTestValue_);
glGetIntegerv(GL_BLEND_SRC, &blendSrc_);
glGetIntegerv(GL_BLEND_DST, &blendDest_);
// set texture and drawing states
ACG::GLState::disable(GL_CULL_FACE);
- ACG::GLState::enable(GL_TEXTURE_2D);
ACG::GLState::enable(GL_BLEND);
- ACG::GLState::enable(GL_ALPHA_TEST);
- ACG::GLState::alphaFunc(GL_GREATER, 0.2f);
ACG::GLState::blendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
if (alwaysOnTop_)
ACG::GLState::disable(GL_DEPTH_TEST);
+ }
}
@@ -280,27 +278,26 @@ enter(GLState& _state, const DrawModes::DrawMode& /*_drawmode*/) {
void
TextNode::
-leave(GLState& /*_state*/, const DrawModes::DrawMode& /*_drawmode*/) {
+leave(GLState& _state, const DrawModes::DrawMode& _drawmode) {
+ if(_state.compatibilityProfile())
+ leaveCompat(_state, _drawmode);
+ else
+ {
if (text_.empty())
return;
// restore the GLState as it was when entering TextNode
if (cullFaceEnabled_)
- ACG::GLState::enable(GL_CULL_FACE);
- if (!texture2dEnabled_)
- ACG::GLState::disable(GL_TEXTURE_2D);
+ ACG::GLState::enable(GL_CULL_FACE);
if (!blendEnabled_)
ACG::GLState::disable(GL_BLEND);
if (depthEnabled_)
ACG::GLState::enable(GL_DEPTH_TEST);
else
- ACG::GLState::disable(GL_DEPTH_TEST);
- if (!alphaTest_)
- ACG::GLState::disable(GL_ALPHA_TEST);
- else
- ACG::GLState::alphaFunc(alphaTestFunc_, alphaTestValue_);
+ ACG::GLState::disable(GL_DEPTH_TEST);
ACG::GLState::blendFunc(blendSrc_, blendDest_);
+ }
}
@@ -322,7 +319,7 @@ draw(GLState& _state, const DrawModes::DrawMode& /*_drawMode*/)
_state.push_modelview_matrix();
_state.scale(size_);
- glDrawArrays(GL_QUADS, 0, int(text_.size() * 4) );
+ glDrawArrays(GL_TRIANGLES, 0, int(text_.size() * 6) );
_state.pop_modelview_matrix();
if (textMode_ == SCREEN_ALIGNED || textMode_ == SCREEN_ALIGNED_STATIC_SIZE) {
@@ -500,6 +497,24 @@ updateVBO() {
vertexBuffer_.push_back(avgWidth*0.15);
vertexBuffer_.push_back(0.0f);
+ // texture coordinates
+ vertexBuffer_.push_back(rightTx);
+ vertexBuffer_.push_back(topTx);
+
+ // bottom left
+ vertexBuffer_.push_back(left);
+ vertexBuffer_.push_back(0.0f);
+ vertexBuffer_.push_back(0.0f);
+
+ // texture coordinates
+ vertexBuffer_.push_back(leftTx);
+ vertexBuffer_.push_back(bottomTx);
+
+ // top right
+ vertexBuffer_.push_back(right);
+ vertexBuffer_.push_back(avgWidth*0.15);
+ vertexBuffer_.push_back(0.0f);
+
// texture coordinates
vertexBuffer_.push_back(rightTx);
vertexBuffer_.push_back(topTx);
@@ -626,7 +641,7 @@ getRenderObjects(ACG::IRenderer* _renderer, ACG::GLState& _state , const ACG::S
localMaterial.specularColor(ACG::Vec4f(0.0, 0.0, 0.0, 0.0 ));
ro.setMaterial(&localMaterial);
- ro.glDrawArrays(GL_QUADS, 0, static_cast<GLsizei>(text_.size()) * 4);
+ ro.glDrawArrays(GL_TRIANGLES, 0, static_cast<GLsizei>(text_.size()) * 6);
_renderer->addRenderObject(&ro);
}
diff --git a/libs_required/ACG/Scenegraph/TextNode.hh b/libs_required/ACG/Scenegraph/TextNode.hh
index 35a9b689d0554315356240c92a3509c7edc8beeb..46743092c8f0cc4b2a8c025ebc6d0f72413cb732 100644
--- a/libs_required/ACG/Scenegraph/TextNode.hh
+++ b/libs_required/ACG/Scenegraph/TextNode.hh
@@ -131,9 +131,11 @@ public:
/// set texture and drawing states
void enter(GLState& _state, const DrawModes::DrawMode& _drawmode);
+ void enterCompat(GLState& _state, const DrawModes::DrawMode& _drawmode);
/// restore texture and drawing states
void leave(GLState& _state, const DrawModes::DrawMode& _drawmode);
+ void leaveCompat(GLState& _state, const DrawModes::DrawMode& _drawmode);
/// set RenderObject for Shader pipeline renderer
void getRenderObjects(ACG::IRenderer* _renderer, ACG::GLState& _state , const ACG::SceneGraph::DrawModes::DrawMode& _drawMode , const ACG::SceneGraph::Material* _mat);
diff --git a/libs_required/ACG/Scenegraph/TextNodeGLCompat.cc b/libs_required/ACG/Scenegraph/TextNodeGLCompat.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d3d4f610680c0358f0cae0107ab43faa8d861c29
--- /dev/null
+++ b/libs_required/ACG/Scenegraph/TextNodeGLCompat.cc
@@ -0,0 +1,139 @@
+/*===========================================================================*\
+ * *
+ * OpenFlipper *
+ * Copyright (c) 2001-2015, RWTH-Aachen University *
+ * Department of Computer Graphics and Multimedia *
+ * All rights reserved. *
+ * www.openflipper.org *
+ * *
+ *---------------------------------------------------------------------------*
+ * This file is part of OpenFlipper. *
+ *---------------------------------------------------------------------------*
+ * *
+ * Redistribution and use in source and binary forms, with or without *
+ * modification, are permitted provided that the following conditions *
+ * are met: *
+ * *
+ * 1. Redistributions of source code must retain the above copyright notice, *
+ * this list of conditions and the following disclaimer. *
+ * *
+ * 2. Redistributions in binary form must reproduce the above copyright *
+ * notice, this list of conditions and the following disclaimer in the *
+ * documentation and/or other materials provided with the distribution. *
+ * *
+ * 3. Neither the name of the copyright holder nor the names of its *
+ * contributors may be used to endorse or promote products derived from *
+ * this software without specific prior written permission. *
+ * *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS *
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
+ * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, *
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, *
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR *
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING *
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS *
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
+ * *
+\*===========================================================================*/
+
+/*===========================================================================*\
+ * *
+ * $Revision$ *
+ * $Author$ *
+ * $Date$ *
+ * *
+\*===========================================================================*/
+
+
+
+
+//=============================================================================
+//
+// CLASS TextNode - IMPLEMENTATION
+//
+//=============================================================================
+
+
+
+//== INCLUDES =================================================================
+
+#include <ACG/GL/acg_glew.hh>
+
+#include "TextNode.hh"
+#include "../Utils/ImageConversion.hh"
+
+
+//== NAMESPACES ===============================================================
+
+namespace ACG {
+namespace SceneGraph {
+
+
+//== IMPLEMENTATION ==========================================================
+
+void
+TextNode::
+enterCompat(GLState& _state, const DrawModes::DrawMode& /*_drawmode*/) {
+ if (text_.empty())
+ return;
+
+ // store current gl state
+ cullFaceEnabled_ = glIsEnabled(GL_CULL_FACE);
+ texture2dEnabled_ = glIsEnabled(GL_TEXTURE_2D);
+ blendEnabled_ = glIsEnabled(GL_BLEND);
+ depthEnabled_ = glIsEnabled(GL_DEPTH_TEST);
+ //alphaTest_ = glIsEnabled(GL_ALPHA_TEST);
+ if (alphaTest_)
+ ACG::GLState::getAlphaFunc(&alphaTestFunc_, &alphaTestValue_);
+
+ glGetIntegerv(GL_BLEND_SRC, &blendSrc_);
+ glGetIntegerv(GL_BLEND_DST, &blendDest_);
+
+ // set texture and drawing states
+ ACG::GLState::disable(GL_CULL_FACE);
+ ACG::GLState::enable(GL_TEXTURE_2D);
+ ACG::GLState::enable(GL_BLEND);
+ ACG::GLState::enable(GL_ALPHA_TEST);
+ ACG::GLState::alphaFunc(GL_GREATER, 0.2f);
+ ACG::GLState::blendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ if (alwaysOnTop_)
+ ACG::GLState::disable(GL_DEPTH_TEST);
+}
+
+
+
+//----------------------------------------------------------------------------
+
+
+void
+TextNode::
+leaveCompat(GLState& /*_state*/, const DrawModes::DrawMode& /*_drawmode*/) {
+ if (text_.empty())
+ return;
+
+ // restore the GLState as it was when entering TextNode
+ if (cullFaceEnabled_)
+ ACG::GLState::enable(GL_CULL_FACE);
+ if (!texture2dEnabled_)
+ ACG::GLState::disable(GL_TEXTURE_2D);
+ if (!blendEnabled_)
+ ACG::GLState::disable(GL_BLEND);
+ if (depthEnabled_)
+ ACG::GLState::enable(GL_DEPTH_TEST);
+ else
+ ACG::GLState::disable(GL_DEPTH_TEST);
+ if (!alphaTest_)
+ ACG::GLState::disable(GL_ALPHA_TEST);
+ else
+ ACG::GLState::alphaFunc(alphaTestFunc_, alphaTestValue_);
+
+ ACG::GLState::blendFunc(blendSrc_, blendDest_);
+}
+
+//=============================================================================
+} // namespace SceneGraph
+} // namespace ACG
+//=============================================================================