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update SDRender with good fog parameter

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git-svn-id: https://svn.code.sf.net/p/speed-dreams/code/trunk@5409 30fe4595-0a0c-4342-8851-515496e4dcbd

Former-commit-id: 5547e4310afd78da87c13c68c56c8d2bd4cdb46b
Former-commit-id: a18aeebd835df7863b4c971e2382a8882690a546
This commit is contained in:
torcs-ng 2013-04-15 17:55:59 +00:00
parent c64a3d83c2
commit caa89dbdaf
1 changed files with 8 additions and 6 deletions
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14
src/modules/graphic/osggraph/OsgRender.cpp
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@ -93,7 +93,8 @@ SDRender::~SDRender(void)
delete thesky; delete thesky;
} }
SDSky * SDRender::getSky(){ SDSky * SDRender::getSky()
{
return thesky; return thesky;
} }
@ -179,7 +180,7 @@ osg::ref_ptr<osg::Node> SDRender::Init(osg::Group *m_sceneroot, tTrack *track)
double r_WrldX = SDScenery::getWorldX(); double r_WrldX = SDScenery::getWorldX();
double r_WrldY = SDScenery::getWorldY(); double r_WrldY = SDScenery::getWorldY();
double r_WrldZ = SDScenery::getWorldZ(); double r_WrldZ = SDScenery::getWorldZ();
osg::Vec3 viewPos(r_WrldX / 2, r_WrldY/ 2, 0 ); osg::Vec3 viewPos(r_WrldX / 2, r_WrldY/ 2, r_WrldZ / 2 );
//osg::Vec3 viewPos(0.0, 0.0, 0.0 ); //osg::Vec3 viewPos(0.0, 0.0, 0.0 );
thesky->reposition( viewPos, 0, 0); thesky->reposition( viewPos, 0, 0);
@ -364,16 +365,17 @@ void SDRender::UpdateLight( void )
osg::ref_ptr< osg::StateSet> SDRender::setFogState() osg::ref_ptr< osg::StateSet> SDRender::setFogState()
{ {
static const double m_log01 = -log( 0.01 );
static const double sqrt_m_log01 = sqrt( m_log01 );
const GLfloat fog_exp2_density = sqrt_m_log01 / thesky->get_visibility();
SceneFog[0] = FogColor[0]; SceneFog[0] = FogColor[0];
SceneFog[1] = FogColor[1]; SceneFog[1] = FogColor[1];
SceneFog[2] = FogColor[2]; SceneFog[2] = FogColor[2];
SceneFog[3] = 0.5f; SceneFog[3] = 1.0f;
osg::ref_ptr<osg::Fog> fog = new osg::Fog(); //The fog object osg::ref_ptr<osg::Fog> fog = new osg::Fog(); //The fog object
fog->setMode(osg::Fog::EXP2); //Fog type fog->setMode(osg::Fog::EXP2); //Fog type
fog->setDensity(0.0005); //Fog density fog->setDensity(fog_exp2_density); //Fog density
fog->setColor(SceneFog); //Fog color fog->setColor(SceneFog); //Fog color
fog->setStart(8000); //Start position of the fog - distance from the camera to the fog
fog->setEnd(12000); // maximum distance - where the fog terminates.
osg::ref_ptr< osg::StateSet> fogState (new osg::StateSet); osg::ref_ptr< osg::StateSet> fogState (new osg::StateSet);
fogState->setAttributeAndModes(fog.get(),osg::StateAttribute::ON); fogState->setAttributeAndModes(fog.get(),osg::StateAttribute::ON);
fogState->setMode(GL_FOG,osg::StateAttribute::ON); fogState->setMode(GL_FOG,osg::StateAttribute::ON);