FGFS-4.1/simgear
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Revert "Remove ambient component of additional lights" because this was Yet Another Bad Idea

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Ambient light is attenuated so it is possible to achieve smooth edges with it

This reverts commit fe8ba57c94.
This commit is contained in:
Frederic Bouvier 2012-04-18 19:56:31 +02:00
parent fe8ba57c94
commit 4b607d6484
2 changed files with 12 additions and 2 deletions
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13
simgear/scene/model/SGLightAnimation.cxx
View File

@ -45,8 +45,9 @@ static EffectMap lightEffectMap;
class SGLightAnimation::UpdateCallback : public osg::NodeCallback {
public:
UpdateCallback(string k, const SGExpressiond* v, SGVec4d d, SGVec4d s) :
UpdateCallback(string k, const SGExpressiond* v, SGVec4d a, SGVec4d d, SGVec4d s) :
_key(k),
_ambient(a),
_diffuse(d),
_specular(s),
_animationValue(v)
@ -63,12 +64,16 @@ public:
if (iter != lightEffectMap.end()) {
simgear::Effect* effect = iter->second;
SGPropertyNode* params = effect->parametersProp;
params->getNode("ambient")->setValue(_ambient * dim);
params->getNode("diffuse")->setValue(_diffuse * dim);
params->getNode("specular")->setValue(_specular * dim);
BOOST_FOREACH(osg::ref_ptr<simgear::Technique>& technique, effect->techniques)
{
BOOST_FOREACH(osg::ref_ptr<simgear::Pass>& pass, technique->passes)
{
osg::Uniform* amb = pass->getUniform("Ambient");
if (amb)
amb->set(toOsg(_ambient) * dim);
osg::Uniform* dif = pass->getUniform("Diffuse");
if (dif)
dif->set(toOsg(_diffuse) * dim);
@ -83,6 +88,7 @@ public:
}
public:
string _key;
SGVec4d _ambient;
SGVec4d _diffuse;
SGVec4d _specular;
SGSharedPtr<SGExpressiond const> _animationValue;
@ -102,6 +108,7 @@ SGLightAnimation::SGLightAnimation(const SGPropertyNode* configNode,
_direction = SGVec3d( getConfig()->getDoubleValue("direction/x"), getConfig()->getDoubleValue("direction/y"), getConfig()->getDoubleValue("direction/z") );
double l = length(_direction);
if (l > 0.001) _direction /= l;
_ambient = GET_COLOR_VALUE("ambient");
_diffuse = GET_COLOR_VALUE("diffuse");
_specular = GET_COLOR_VALUE("specular");
_attenuation = SGVec3d( getConfig()->getDoubleValue("attenuation/c"), getConfig()->getDoubleValue("attenuation/l"), getConfig()->getDoubleValue("attenuation/q") );
@ -123,7 +130,7 @@ SGLightAnimation::createAnimationGroup(osg::Group& parent)
osg::Group* grp = new osg::Group;
grp->setName("light animation node");
if (_animationValue.valid())
grp->setUpdateCallback(new UpdateCallback(_key, _animationValue, _diffuse, _specular));
grp->setUpdateCallback(new UpdateCallback(_key, _animationValue, _ambient, _diffuse, _specular));
parent.addChild(grp);
grp->setNodeMask( simgear::MODELLIGHT_BIT );
return grp;
@ -149,6 +156,7 @@ SGLightAnimation::install(osg::Node& node)
SGPropertyNode* params = makeChild(effectProp, "parameters");
params->getNode("position",true)->setValue(SGVec4d(_position.x(),_position.y(),_position.z(),1.0));
params->getNode("direction",true)->setValue(SGVec4d(_direction.x(),_direction.y(),_direction.z(),0.0));
params->getNode("ambient",true)->setValue(_ambient * dim);
params->getNode("diffuse",true)->setValue(_diffuse * dim);
params->getNode("specular",true)->setValue(_specular * dim);
params->getNode("attenuation",true)->setValue(_attenuation);
@ -191,6 +199,7 @@ SGLightAnimation::install(osg::Node& node)
SGPropertyNode* params = makeChild(effectProp, "parameters");
params->getNode("position",true)->setValue(SGVec4d(_position.x(),_position.y(),_position.z(),1.0));
params->getNode("ambient",true)->setValue(_ambient * dim);
params->getNode("diffuse",true)->setValue(_diffuse * dim);
params->getNode("specular",true)->setValue(_specular * dim);
params->getNode("attenuation",true)->setValue(_attenuation);

1
simgear/scene/model/animation.hxx
View File

@ -360,6 +360,7 @@ private:
string _light_type;
SGVec3d _position;
SGVec3d _direction;
SGVec4d _ambient;
SGVec4d _diffuse;
SGVec4d _specular;
SGVec3d _attenuation;