FGFS-4.1/OpenSceneGraph
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Adding support for controlling visual settings via environmental variables

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and command line paramters.  Including support for stereo and stencil buffer.
This commit is contained in:
Robert Osfield
2001-12-19 00:38:23 +00:00
parent a3fe8ebb18
commit 296865e250
24 changed files with 825 additions and 300 deletions
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152
src/osgUtil/SceneView.cpp
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@@ -6,6 +6,7 @@
#include <osg/Texture>
#include <osg/AlphaFunc>
#include <osg/TexEnv>
#include <osg/ColorMatrix>
#include <osg/GLU>
@@ -52,15 +53,6 @@ void SceneView::setDefaults()
_state = new State;
_camera = new Camera;
_stereoMode = MONO;
_leftEye.set(-0.03f,0.0f,0.0f);
_rightEye.set(0.03f,0.0f,0.0f);
_focalLength = 1.0f;
_screenDistance = 1.0f;
_rendergraph = new RenderGraph;
_renderStage = new RenderStage;
@@ -143,7 +135,7 @@ void SceneView::app()
void SceneView::cull()
{
if (!_sceneData) return;
if (!_sceneData || !_viewport->valid()) return;
if (!_initCalled) init();
@@ -276,7 +268,7 @@ void SceneView::cull()
void SceneView::draw()
{
if (!_sceneData) return;
if (!_sceneData || !_viewport->valid()) return;
if (!_state)
{
@@ -290,6 +282,7 @@ void SceneView::draw()
_state->reset();
_state->setFrameStamp(_frameStamp.get());
_state->setVisualsSettings(_visualsSettings.get());
// note, to support multi-pipe systems the deletion of OpenGL display list
// and texture objects is deferred until the OpenGL context is the correct
@@ -299,67 +292,84 @@ void SceneView::draw()
osg::Texture::flushDeletedTextureObjects(_state->getContextID());
RenderLeaf* previous = NULL;
switch(getStereoMode())
{
case(MONO):
{
_renderStage->draw(*_state,previous);
}
break;
case(QUAD_BUFFER_STEREO):
{
osg::ref_ptr<osg::Camera> left_camera = new osg::Camera(*_camera);
osg::ref_ptr<osg::Camera> right_camera = new osg::Camera(*_camera);
float iod = 0.05f;
left_camera->adjustEyeOffsetForStereo(osg::Vec3(-iod*0.5,0.0f,0.0f),_screenDistance);
right_camera->adjustEyeOffsetForStereo(osg::Vec3(iod*0.5,0.0f,0.0f),_screenDistance);
glDrawBuffer(GL_BACK_LEFT);
_renderStage->setCamera(left_camera.get());
_renderStage->draw(*_state,previous);
glDrawBuffer(GL_BACK_RIGHT);
_renderStage->setCamera(right_camera.get());
_renderStage->_stageDrawnThisFrame = false;
_renderStage->draw(*_state,previous);
}
break;
case(ANAGLYPHIC_STEREO):
{
osg::ref_ptr<osg::Camera> left_camera = new osg::Camera(*_camera);
osg::ref_ptr<osg::Camera> right_camera = new osg::Camera(*_camera);
float iod = 0.05f;
left_camera->adjustEyeOffsetForStereo(osg::Vec3(-iod*0.5,0.0f,0.0f),_screenDistance);
right_camera->adjustEyeOffsetForStereo(osg::Vec3(iod*0.5,0.0f,0.0f),_screenDistance);
osg::ColorMask* red = new osg::ColorMask;
osg::ColorMask* green = new osg::ColorMask;
red->setMask(true,false,false,true);
_renderStage->setColorMask(red);
_renderStage->setCamera(left_camera.get());
_renderStage->draw(*_state,previous);
green->setMask(false,true,true,true);
_renderStage->setColorMask(green);
_renderStage->_stageDrawnThisFrame = false;
_renderStage->setCamera(right_camera.get());
_renderStage->draw(*_state,previous);
}
break;
default:
{
osg::notify(osg::NOTICE)<<"Warning: stereo camera mode not implemented yet."<< std::endl;
_renderStage->draw(*_state,previous);
}
break;
}
if (_visualsSettings.valid() && _visualsSettings->getStereo())
{
switch(_visualsSettings->getStereoMode())
{
case(osg::VisualsSettings::QUAD_BUFFER):
{
osg::ref_ptr<osg::Camera> left_camera = new osg::Camera(*_camera);
osg::ref_ptr<osg::Camera> right_camera = new osg::Camera(*_camera);
float iod = _visualsSettings->getEyeSeperation();
float screenDistance = _visualsSettings->getEyeSeperation();
left_camera->adjustEyeOffsetForStereo(osg::Vec3(-iod*0.5,0.0f,0.0f),screenDistance);
right_camera->adjustEyeOffsetForStereo(osg::Vec3(iod*0.5,0.0f,0.0f),screenDistance);
glDrawBuffer(GL_BACK_LEFT);
_renderStage->setCamera(left_camera.get());
_renderStage->draw(*_state,previous);
glDrawBuffer(GL_BACK_RIGHT);
_renderStage->setCamera(right_camera.get());
_renderStage->_stageDrawnThisFrame = false;
_renderStage->draw(*_state,previous);
}
break;
case(osg::VisualsSettings::ANAGLYPHIC):
{
osg::ref_ptr<osg::Camera> left_camera = new osg::Camera(*_camera);
osg::ref_ptr<osg::Camera> right_camera = new osg::Camera(*_camera);
float iod = _visualsSettings->getEyeSeperation();
float screenDistance = _visualsSettings->getScreenDistance();
left_camera->adjustEyeOffsetForStereo(osg::Vec3(-iod*0.5,0.0f,0.0f),screenDistance);
right_camera->adjustEyeOffsetForStereo(osg::Vec3(iod*0.5,0.0f,0.0f),screenDistance);
osg::ColorMatrix* cm = new osg::ColorMatrix;
cm->setMatrix(osg::Matrix(0.3,0.3,0.3,0.0,
0.6,0.6,0.6,0.0,
0.1,0.1,0.1,0.0,
0.0,0.0,0.0,1.0));
_globalState->setAttribute(cm);
osg::ColorMask* red = new osg::ColorMask;
osg::ColorMask* green = new osg::ColorMask;
red->setMask(true,false,false,true);
_renderStage->setColorMask(red);
_renderStage->setCamera(left_camera.get());
_renderStage->draw(*_state,previous);
green->setMask(false,true,true,true);
_renderStage->setColorMask(green);
_renderStage->_stageDrawnThisFrame = false;
_renderStage->setCamera(right_camera.get());
_renderStage->draw(*_state,previous);
}
break;
default:
{
osg::notify(osg::NOTICE)<<"Warning: stereo camera mode not implemented yet."<< std::endl;
_renderStage->draw(*_state,previous);
}
break;
}
}
else
{
// bog standard draw.
_renderStage->draw(*_state,previous);
}
GLenum errorNo = glGetError();
if (errorNo!=GL_NO_ERROR)
{