#include "pt_lights.hxx"
+#include <map>
+#include <boost/tuple/tuple_comparison.hpp>
+
#include <osg/Array>
#include <osg/Geometry>
#include <osg/CullFace>
#include <simgear/debug/logstream.hxx>
#include <simgear/scene/util/RenderConstants.hxx>
#include <simgear/scene/util/SGEnlargeBoundingBox.hxx>
+#include <simgear/scene/util/StateAttributeFactory.hxx>
+
+#include <simgear/scene/material/Effect.hxx>
+#include <simgear/scene/material/EffectGeode.hxx>
+#include <simgear/scene/material/Technique.hxx>
+#include <simgear/scene/material/Pass.hxx>
#include "SGVasiDrawable.hxx"
using OpenThreads::Mutex;
using OpenThreads::ScopedLock;
+using namespace osg;
using namespace simgear;
static void
static osg::Texture2D*
gen_standard_light_sprite(void)
{
- // double checked locking ...
+ // Always called from when the lightMutex is already taken
static osg::ref_ptr<osg::Texture2D> texture;
if (texture.valid())
return texture.get();
- ScopedLock<Mutex> lock(lightMutex);
- if (texture.valid())
- return texture.get();
-
texture = new osg::Texture2D;
texture->setImage(getPointSpriteImage(6));
texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP);
return texture.get();
}
-SGPointSpriteLightCullCallback::SGPointSpriteLightCullCallback(const osg::Vec3& da,
- float sz) :
- _pointSpriteStateSet(new osg::StateSet),
- _distanceAttenuationStateSet(new osg::StateSet)
+namespace
{
- osg::PointSprite* pointSprite = new osg::PointSprite;
- _pointSpriteStateSet->setTextureAttributeAndModes(0, pointSprite,
- osg::StateAttribute::ON);
- osg::Texture2D* texture = gen_standard_light_sprite();
- _pointSpriteStateSet->setTextureAttribute(0, texture);
- _pointSpriteStateSet->setTextureMode(0, GL_TEXTURE_2D,
- osg::StateAttribute::ON);
- osg::TexEnv* texEnv = new osg::TexEnv;
- texEnv->setMode(osg::TexEnv::MODULATE);
- _pointSpriteStateSet->setTextureAttribute(0, texEnv);
-
- osg::Point* point = new osg::Point;
- point->setFadeThresholdSize(1);
- point->setMinSize(1);
- point->setMaxSize(sz);
- point->setSize(sz);
- point->setDistanceAttenuation(da);
- _distanceAttenuationStateSet->setAttributeAndModes(point);
-}
+typedef boost::tuple<float, osg::Vec3, float, float, bool> PointParams;
+typedef std::map<PointParams, ref_ptr<Effect> > EffectMap;
-// FIXME make state sets static
-SGPointSpriteLightCullCallback::SGPointSpriteLightCullCallback(osg::Point* point) :
- _pointSpriteStateSet(new osg::StateSet),
- _distanceAttenuationStateSet(new osg::StateSet)
-{
- osg::PointSprite* pointSprite = new osg::PointSprite;
- _pointSpriteStateSet->setTextureAttributeAndModes(0, pointSprite,
- osg::StateAttribute::ON);
- osg::Texture2D* texture = gen_standard_light_sprite();
- _pointSpriteStateSet->setTextureAttribute(0, texture);
- _pointSpriteStateSet->setTextureMode(0, GL_TEXTURE_2D,
- osg::StateAttribute::ON);
- osg::TexEnv* texEnv = new osg::TexEnv;
- texEnv->setMode(osg::TexEnv::MODULATE);
- _pointSpriteStateSet->setTextureAttribute(0, texEnv);
-
- _distanceAttenuationStateSet->setAttributeAndModes(point);
+EffectMap effectMap;
+
+ref_ptr<PolygonMode> polyMode = new PolygonMode(PolygonMode::FRONT,
+ PolygonMode::POINT);
+ref_ptr<PointSprite> pointSprite = new PointSprite;
}
-void
-SGPointSpriteLightCullCallback::operator()(osg::Node* node,
- osg::NodeVisitor* nv)
+Effect* getLightEffect(float size, const Vec3& attenuation,
+ float minSize, float maxSize, bool directional)
{
- assert(dynamic_cast<osgUtil::CullVisitor*>(nv));
- osgUtil::CullVisitor* cv = static_cast<osgUtil::CullVisitor*>(nv);
-
- // Test for point sprites and point parameters availibility
- unsigned contextId = cv->getRenderInfo().getContextID();
- SGSceneFeatures* features = SGSceneFeatures::instance();
- bool usePointSprite = features->getEnablePointSpriteLights(contextId);
- bool usePointParameters = features->getEnableDistanceAttenuationLights(contextId);
-
- if (usePointSprite)
- cv->pushStateSet(_pointSpriteStateSet.get());
-
- if (usePointParameters)
- cv->pushStateSet(_distanceAttenuationStateSet.get());
-
- traverse(node, nv);
-
- if (usePointParameters)
- cv->popStateSet();
-
- if (usePointSprite)
- cv->popStateSet();
+ PointParams pointParams(size, attenuation, minSize, maxSize, directional);
+ ScopedLock<Mutex> lock(lightMutex);
+ EffectMap::iterator eitr = effectMap.find(pointParams);
+ if (eitr != effectMap.end())
+ return eitr->second.get();
+ // Basic stuff; no sprite or attenuation support
+ Pass *basicPass = new Pass;
+ basicPass->setRenderBinDetails(POINT_LIGHTS_BIN, "DepthSortedBin");
+ basicPass->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
+ StateAttributeFactory *attrFact = StateAttributeFactory::instance();
+ basicPass->setAttributeAndModes(attrFact->getStandardBlendFunc());
+ basicPass->setAttributeAndModes(attrFact->getStandardAlphaFunc());
+ if (directional) {
+ basicPass->setAttributeAndModes(attrFact->getCullFaceBack());
+ basicPass->setAttribute(polyMode.get());
+ }
+ Pass *attenuationPass = clone(basicPass, CopyOp::SHALLOW_COPY);
+ osg::Point* point = new osg::Point;
+ point->setMinSize(minSize);
+ point->setMaxSize(maxSize);
+ point->setSize(size);
+ point->setDistanceAttenuation(attenuation);
+ attenuationPass->setAttributeAndModes(point);
+ Pass *spritePass = clone(basicPass, CopyOp::SHALLOW_COPY);
+ spritePass->setTextureAttributeAndModes(0, pointSprite,
+ osg::StateAttribute::ON);
+ Texture2D* texture = gen_standard_light_sprite();
+ spritePass->setTextureAttribute(0, texture);
+ spritePass->setTextureMode(0, GL_TEXTURE_2D,
+ osg::StateAttribute::ON);
+ spritePass->setTextureAttribute(0, attrFact->getStandardTexEnv());
+ Pass *combinedPass = clone(spritePass, CopyOp::SHALLOW_COPY);
+ combinedPass->setAttributeAndModes(point);
+ Effect* effect = new Effect;
+ std::vector<std::string> combinedExtensions;
+ combinedExtensions.push_back("GL_ARB_point_sprite");
+ combinedExtensions.push_back("GL_ARB_point_parameters");
+ Technique* combinedTniq = new Technique;
+ combinedTniq->passes.push_back(combinedPass);
+ combinedTniq->setGLExtensionsPred(2.0, combinedExtensions);
+ effect->techniques.push_back(combinedTniq);
+ std::vector<std::string> spriteExtensions;
+ spriteExtensions.push_back(combinedExtensions.front());
+ Technique* spriteTniq = new Technique;
+ spriteTniq->passes.push_back(spritePass);
+ spriteTniq->setGLExtensionsPred(2.0, spriteExtensions);
+ effect->techniques.push_back(spriteTniq);
+ std::vector<std::string> parameterExtensions;
+ parameterExtensions.push_back(combinedExtensions.back());
+ Technique* parameterTniq = new Technique;
+ parameterTniq->passes.push_back(attenuationPass);
+ parameterTniq->setGLExtensionsPred(1.4, parameterExtensions);
+ effect->techniques.push_back(parameterTniq);
+ Technique* basicTniq = new Technique(true);
+ basicTniq->passes.push_back(basicPass);
+ effect->techniques.push_back(basicTniq);
+ effectMap.insert(std::make_pair(pointParams, effect));
+ return effect;
}
-osg::Node*
-SGLightFactory::getLight(const SGLightBin::Light& light)
+
+osg::Drawable*
+SGLightFactory::getLightDrawable(const SGLightBin::Light& light)
{
osg::Vec3Array* vertices = new osg::Vec3Array;
osg::Vec4Array* colors = new osg::Vec4Array;
drawArrays = new osg::DrawArrays(osg::PrimitiveSet::POINTS,
0, vertices->size());
geometry->addPrimitiveSet(drawArrays);
-
- osg::StateSet* stateSet = geometry->getOrCreateStateSet();
- stateSet->setRenderBinDetails(POINT_LIGHTS_BIN, "DepthSortedBin");
- stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
-
- osg::BlendFunc* blendFunc = new osg::BlendFunc;
- stateSet->setAttribute(blendFunc);
- stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
-
- osg::AlphaFunc* alphaFunc;
- alphaFunc = new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01);
- stateSet->setAttribute(alphaFunc);
- stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
-
- osg::Geode* geode = new osg::Geode;
- geode->addDrawable(geometry);
-
- return geode;
+ return geometry;
}
-osg::Node*
-SGLightFactory::getLight(const SGDirectionalLightBin::Light& light)
+osg::Drawable*
+SGLightFactory::getLightDrawable(const SGDirectionalLightBin::Light& light)
{
osg::Vec3Array* vertices = new osg::Vec3Array;
osg::Vec4Array* colors = new osg::Vec4Array;
drawArrays = new osg::DrawArrays(osg::PrimitiveSet::TRIANGLES,
0, vertices->size());
geometry->addPrimitiveSet(drawArrays);
-
- osg::StateSet* stateSet = geometry->getOrCreateStateSet();
- stateSet->setRenderBinDetails(POINT_LIGHTS_BIN, "DepthSortedBin");
-
- osg::Material* material = new osg::Material;
- material->setColorMode(osg::Material::OFF);
- stateSet->setAttribute(material);
-
- osg::CullFace* cullFace = new osg::CullFace;
- cullFace->setMode(osg::CullFace::BACK);
- stateSet->setAttribute(cullFace, osg::StateAttribute::ON);
- stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
-
- osg::PolygonMode* polygonMode = new osg::PolygonMode;
- polygonMode->setMode(osg::PolygonMode::FRONT, osg::PolygonMode::POINT);
- stateSet->setAttribute(polygonMode);
-
- stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
-
- osg::BlendFunc* blendFunc = new osg::BlendFunc;
- stateSet->setAttribute(blendFunc);
- stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
-
- osg::AlphaFunc* alphaFunc;
- alphaFunc = new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01);
- stateSet->setAttribute(alphaFunc);
- stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
-
- osg::Geode* geode = new osg::Geode;
- geode->addDrawable(geometry);
-
- return geode;
+ return geometry;
}
+namespace
+{
+ ref_ptr<StateSet> simpleLightSS;
+}
osg::Drawable*
SGLightFactory::getLights(const SGLightBin& lights, unsigned inc, float alphaOff)
{
drawArrays = new osg::DrawArrays(osg::PrimitiveSet::POINTS,
0, vertices->size());
geometry->addPrimitiveSet(drawArrays);
-
- osg::StateSet* stateSet = geometry->getOrCreateStateSet();
- stateSet->setRenderBinDetails(POINT_LIGHTS_BIN, "DepthSortedBin");
- stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
-
- osg::BlendFunc* blendFunc = new osg::BlendFunc;
- stateSet->setAttribute(blendFunc);
- stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
-
- osg::AlphaFunc* alphaFunc;
- alphaFunc = new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01);
- stateSet->setAttribute(alphaFunc);
- stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
-
+ {
+ ScopedLock<Mutex> lock(lightMutex);
+ if (!simpleLightSS.valid()) {
+ StateAttributeFactory *attrFact = StateAttributeFactory::instance();
+ simpleLightSS = new StateSet;
+ simpleLightSS->setRenderBinDetails(POINT_LIGHTS_BIN, "DepthSortedBin");
+ simpleLightSS->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
+ simpleLightSS->setAttributeAndModes(attrFact->getStandardBlendFunc());
+ simpleLightSS->setAttributeAndModes(attrFact->getStandardAlphaFunc());
+ }
+ }
+ geometry->setStateSet(simpleLightSS.get());
return geometry;
}
drawArrays = new osg::DrawArrays(osg::PrimitiveSet::TRIANGLES,
0, vertices->size());
geometry->addPrimitiveSet(drawArrays);
-
- osg::StateSet* stateSet = geometry->getOrCreateStateSet();
- stateSet->setRenderBinDetails(POINT_LIGHTS_BIN, "DepthSortedBin");
-
- osg::Material* material = new osg::Material;
- material->setColorMode(osg::Material::OFF);
- stateSet->setAttribute(material);
-
- osg::CullFace* cullFace = new osg::CullFace;
- cullFace->setMode(osg::CullFace::BACK);
- stateSet->setAttribute(cullFace, osg::StateAttribute::ON);
- stateSet->setMode(GL_CULL_FACE, osg::StateAttribute::ON);
-
- osg::PolygonMode* polygonMode = new osg::PolygonMode;
- polygonMode->setMode(osg::PolygonMode::FRONT, osg::PolygonMode::POINT);
- stateSet->setAttribute(polygonMode);
-
- stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
-
- osg::BlendFunc* blendFunc = new osg::BlendFunc;
- stateSet->setAttribute(blendFunc);
- stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
-
- osg::AlphaFunc* alphaFunc;
- alphaFunc = new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01);
- stateSet->setAttribute(alphaFunc);
- stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
-
return geometry;
}
float flashTime = 2e-2 + 5e-3*sg_random();
osg::Sequence* sequence = new osg::Sequence;
sequence->setDefaultTime(flashTime);
-
- for (int i = lights.getNumLights() - 1; 0 <= i; --i)
- sequence->addChild(getLight(lights.getLight(i)), flashTime);
+ Effect* effect = getLightEffect(10.0f, osg::Vec3(1.0, 0.0001, 0.00000001),
+ 6.0f, 10.0f, true);
+ for (int i = lights.getNumLights() - 1; 0 <= i; --i) {
+ EffectGeode* egeode = new EffectGeode;
+ egeode->setEffect(effect);
+ egeode->addDrawable(getLightDrawable(lights.getLight(i)));
+ sequence->addChild(egeode, flashTime);
+ }
sequence->addChild(new osg::Group, 1 + 1e-1*sg_random());
sequence->setInterval(osg::Sequence::LOOP, 0, -1);
sequence->setDuration(1.0f, -1);
sequence->setMode(osg::Sequence::START);
sequence->setSync(true);
-
- osg::StateSet* stateSet = sequence->getOrCreateStateSet();
- stateSet->setRenderBinDetails(POINT_LIGHTS_BIN, "DepthSortedBin");
- stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
-
- osg::BlendFunc* blendFunc = new osg::BlendFunc;
- stateSet->setAttribute(blendFunc);
- stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
-
- osg::AlphaFunc* alphaFunc;
- alphaFunc = new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01);
- stateSet->setAttribute(alphaFunc);
- stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
-
- osg::Point* point = new osg::Point;
- point->setMinSize(6);
- point->setMaxSize(10);
- point->setSize(10);
- point->setDistanceAttenuation(osg::Vec3(1.0, 0.0001, 0.00000001));
- sequence->setCullCallback(new SGPointSpriteLightCullCallback(point));
-
return sequence;
}
float flashTime = 2e-2 + 5e-3*sg_random();
osg::Sequence* sequence = new osg::Sequence;
sequence->setDefaultTime(flashTime);
-
+ Effect* effect = getLightEffect(10.0f, osg::Vec3(1.0, 0.0001, 0.00000001),
+ 6.0, 10.0, false);
// centerline lights
- for (int i = lights.getNumLights() - 1; 2 <= i; --i)
- sequence->addChild(getLight(lights.getLight(i)), flashTime);
-
+ for (int i = lights.getNumLights() - 1; 2 <= i; --i) {
+ EffectGeode* egeode = new EffectGeode;
+ egeode->setEffect(effect);
+ egeode->addDrawable(getLightDrawable(lights.getLight(i)));
+ sequence->addChild(egeode, flashTime);
+ }
// runway end lights
osg::Group* group = new osg::Group;
- for (unsigned i = 0; i < 2; ++i)
- group->addChild(getLight(lights.getLight(i)));
+ for (unsigned i = 0; i < 2; ++i) {
+ EffectGeode* egeode = new EffectGeode;
+ egeode->setEffect(effect);
+ egeode->addDrawable(getLightDrawable(lights.getLight(i)));
+ group->addChild(egeode);
+ }
sequence->addChild(group, flashTime);
// add an extra empty group for a break
sequence->setMode(osg::Sequence::START);
sequence->setSync(true);
- osg::StateSet* stateSet = sequence->getOrCreateStateSet();
- stateSet->setRenderBinDetails(POINT_LIGHTS_BIN, "DepthSortedBin");
- stateSet->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
-
- osg::BlendFunc* blendFunc = new osg::BlendFunc;
- stateSet->setAttribute(blendFunc);
- stateSet->setMode(GL_BLEND, osg::StateAttribute::ON);
-
- osg::AlphaFunc* alphaFunc;
- alphaFunc = new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.01);
- stateSet->setAttribute(alphaFunc);
- stateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::ON);
-
- osg::Point* point = new osg::Point;
- point->setMinSize(6);
- point->setMaxSize(10);
- point->setSize(10);
- point->setDistanceAttenuation(osg::Vec3(1.0, 0.0001, 0.00000001));
- sequence->setCullCallback(new SGPointSpriteLightCullCallback(point));
-
return sequence;
}
projects / simgear.git / commitdiff