fly/flightgear
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src/Main/main.cxx src/Main/renderer.cxx: Avoid an extra clear of
	of the color buffer.
This commit is contained in:
frohlich 2006-11-12 12:38:57 +00:00
parent 651a21f9d5
commit 29778f1496
2 changed files with 59 additions and 18 deletions
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7
src/Main/main.cxx
View file

@ -613,13 +613,6 @@ static void fgMainLoop( void ) {
globals->get_soundmgr()->set_volume(init_volume);
}
// OSGFIXME: with osg>1.2 remove this, osg::LightModel does the trick...
// if (fgGetBool("/sim/rendering/specular-highlight")) {
// glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
// } else {
// glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SINGLE_COLOR);
// }
fgRequestRedraw();
SG_LOG( SG_ALL, SG_DEBUG, "" );

70
src/Main/renderer.cxx
View file

@ -50,6 +50,7 @@
#include <osg/PolygonMode>
#include <osg/ShadeModel>
#include <osg/TexEnv>
#include <osg/TexEnvCombine>
#include <osg/TexGen>
#include <osg/TexMat>
#include <osg/ColorMatrix>
@ -102,6 +103,37 @@
#include "renderer.hxx"
#include "main.hxx"
class SGPuDrawable : public osg::Drawable {
public:
SGPuDrawable()
{
// Dynamic stuff, do not store geometry
setUseDisplayList(false);
osg::StateSet* stateSet = getOrCreateStateSet();
// speed optimization?
stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::OFF);
// We can do translucent menus, so why not. :-)
stateSet->setAttribute(new osg::BlendFunc(osg::BlendFunc::SRC_ALPHA, osg::BlendFunc::ONE_MINUS_SRC_ALPHA));
stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
stateSet->setMode(GL_FOG, osg::StateAttribute::OFF);
stateSet->setMode(GL_DEPTH_TEST, osg::StateAttribute::OFF);
}
virtual void drawImplementation(osg::State& state) const
{
state.pushStateSet(getStateSet());
puDisplay();
state.popStateSet();
}
virtual osg::Object* cloneType() const { return new SGPuDrawable; }
virtual osg::Object* clone(const osg::CopyOp&) const { return new SGPuDrawable; }
private:
};
class FGSunLightUpdateCallback : public osg::StateAttribute::Callback {
public:
@ -280,10 +312,11 @@ FGRenderer::init( void ) {
1, 0, 0, 0,
0,-1, 0, 0,
0, 0, 0, 1));
sceneView->getCamera()->setClearMask(0);
sceneView->getCamera()->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
sceneView->getCamera()->setClearMask(GL_COLOR_BUFFER_BIT);
osg::StateSet* stateSet = mRoot->getOrCreateStateSet();
stateSet->setRenderingHint(osg::StateSet::OPAQUE_BIN);
stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
@ -300,9 +333,13 @@ FGRenderer::init( void ) {
// this will be set below
stateSet->setMode(GL_NORMALIZE, osg::StateAttribute::OFF);
// osg::Material* material = new osg::Material;
// stateSet->setAttribute(material);
osg::Material* material = new osg::Material;
stateSet->setAttribute(material);
stateSet->setTextureAttribute(0, new osg::TexEnv);
stateSet->setTextureMode(0, GL_TEXTURE_2D, osg::StateAttribute::OFF);
// stateSet->setAttribute(new osg::CullFace(osg::CullFace::BACK));
// stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
@ -318,7 +355,7 @@ FGRenderer::init( void ) {
// this is the topmost scenegraph node for osg
mBackGroundCamera->addChild(thesky->getPreRoot());
mBackGroundCamera->setClearMask(GL_COLOR_BUFFER_BIT);
mBackGroundCamera->setClearMask(0);
GLbitfield inheritanceMask = osg::CullSettings::ALL_VARIABLES;
inheritanceMask &= ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE;
@ -332,9 +369,6 @@ FGRenderer::init( void ) {
mRoot->addChild(mBackGroundCamera.get());
sceneView->getCamera()->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
mSceneCamera->setClearMask(GL_DEPTH_BUFFER_BIT);
inheritanceMask = osg::CullSettings::ALL_VARIABLES;
inheritanceMask &= ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE;
@ -361,6 +395,21 @@ FGRenderer::init( void ) {
mRoot->addChild(mSceneCamera.get());
// plug in the GUI
osg::CameraNode* guiCamera = new osg::CameraNode;
guiCamera->setRenderOrder(osg::CameraNode::POST_RENDER);
guiCamera->setClearMask(0);
inheritanceMask = osg::CullSettings::ALL_VARIABLES;
inheritanceMask &= ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE;
inheritanceMask &= ~osg::CullSettings::CULLING_MODE;
guiCamera->setInheritanceMask(inheritanceMask);
guiCamera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
guiCamera->setCullingMode(osg::CullSettings::NO_CULLING);
mRoot->addChild(guiCamera);
osg::Geode* geode = new osg::Geode;
geode->addDrawable(new SGPuDrawable);
guiCamera->addChild(geode);
mSceneCamera->addChild(globals->get_scenery()->get_scene_graph());
stateSet = mSceneCamera->getOrCreateStateSet();
@ -479,11 +528,11 @@ FGRenderer::update( bool refresh_camera_settings ) {
if ( skyblend ) {
if ( fgGetBool("/sim/rendering/textures") ) {
SGVec4f clearColor(l->adj_fog_color());
mBackGroundCamera->setClearColor(clearColor.osg());
sceneView->getCamera()->setClearColor(clearColor.osg());
}
} else {
SGVec4f clearColor(l->sky_color());
mBackGroundCamera->setClearColor(clearColor.osg());
sceneView->getCamera()->setClearColor(clearColor.osg());
}
// update fog params if visibility has changed
@ -691,7 +740,6 @@ FGRenderer::update( bool refresh_camera_settings ) {
glDisable( GL_CULL_FACE ) ;
glEnable( GL_BLEND ) ;
glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
puDisplay();
// Fade out the splash screen over the first three seconds.
double t = globals->get_sim_time_sec();