Hi Wyatt,
Just have to ask, if you try with only one object and a ground plane (a
really simple scene) do you get the same results?
I just tested, and your code seems to work. I've attached a source file
which is the osgshadow example, with the main() commented out and your
code in its place. Have a look, the only changes were to put the
ModelThree scene as child of your m_World group and to make sure I had a
manipulator, and make everything compile...
You seem to be using a skydome (based on a variable called SKYDOME_RANGE
in the code). You did set your skydome's node mask to ~cast right?
Otherwise what you're seeing is probably your skydome's shadow being
cast over everything... That's one thing about using osgShadow, you need
to make sure things that you don't want to cast shadows don't have the
cast shadow bit in their node mask. Also HUDs should be set that way.
Keep an iron grip on your node masks or you'll have unpleasant
surprises... :-)
The receive shadow node mask is not used for ShadowMap classes, but you
can implement a node that doesn't receive shadows by adding a case in
your shader (a test on a boolean uniform that skips the shadow test) and
set that uniform to true at your scene's root and false for each node
that you don't want to receive shadows.
And btw, osgShadow::ShadowMap is not really designed for positional
lights, because they're omnidirectional and would need 6 full-scene RTT
passes (like a cube map) to be totally accurate. I think (IIRC)
osgShadow::ShadowMap and the ViewDependentShadow classes try to
approximate a directional in that case, but the approximation breaks
down if the light source is positioned inside the bounding box of the
scene... You're better off either approximating the sun with a
directional, or using a spot light for an interior scene.
Hope this helps,
J-S
--
______________________________________________________
Jean-Sebastien Guay jean-sebastien.g...@cm-labs.com
http://www.cm-labs.com/
http://whitestar02.webhop.org/
/* OpenSceneGraph example, osgshadow.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <osg/ArgumentParser>
#include <osg/ComputeBoundsVisitor>
#include <osg/Texture2D>
#include <osg/ShapeDrawable>
#include <osg/MatrixTransform>
#include <osg/Geometry>
#include <osgGA/TrackballManipulator>
#include <osgGA/FlightManipulator>
#include <osgGA/DriveManipulator>
#include <osgGA/KeySwitchMatrixManipulator>
#include <osgGA/AnimationPathManipulator>
#include <osgGA/TerrainManipulator>
#include <osgGA/AnimationPathManipulator>
#include <osgGA/StateSetManipulator>
#include <osgViewer/CompositeViewer>
#include <osgViewer/ViewerEventHandlers>
#include <osgShadow/ShadowedScene>
#include <osgShadow/ShadowVolume>
#include <osgShadow/ShadowTexture>
#include <osgShadow/ShadowMap>
#include <osgShadow/SoftShadowMap>
#include <osgShadow/ParallelSplitShadowMap>
#include <osgShadow/LightSpacePerspectiveShadowMap>
#include <osgShadow/StandardShadowMap>
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <iostream>
// for the grid data..
#include "terrain_coords.h"
// for the model number four - island scene
#include "IslandScene.h"
static int ReceivesShadowTraversalMask = 0x1;
static int CastsShadowTraversalMask = 0x2;
/*
namespace ModelOne
{
enum Faces
{
FRONT_FACE = 1,
BACK_FACE = 2,
LEFT_FACE = 4,
RIGHT_FACE = 8,
TOP_FACE = 16,
BOTTOM_FACE = 32
};
osg::Node* createCube(unsigned int mask)
{
osg::Geode* geode = new osg::Geode;
osg::Geometry* geometry = new osg::Geometry;
geode->addDrawable(geometry);
osg::Vec3Array* vertices = new osg::Vec3Array;
geometry->setVertexArray(vertices);
osg::Vec3Array* normals = new osg::Vec3Array;
geometry->setNormalArray(normals);
geometry->setNormalBinding(osg::Geometry::BIND_PER_VERTEX);
osg::Vec4Array* colours = new osg::Vec4Array;
geometry->setColorArray(colours);
geometry->setColorBinding(osg::Geometry::BIND_OVERALL);
colours->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
osg::Vec3 origin(0.0f,0.0f,0.0f);
osg::Vec3 dx(2.0f,0.0f,0.0f);
osg::Vec3 dy(0.0f,1.0f,0.0f);
osg::Vec3 dz(0.0f,0.0f,1.0f);
osg::Vec3 px(1.0f,0.0,0.0f);
osg::Vec3 nx(-1.0f,0.0,0.0f);
osg::Vec3 py(0.0f,1.0f,0.0f);
osg::Vec3 ny(0.0f,-1.0f,0.0f);
osg::Vec3 pz(0.0f,0.0f,1.0f);
osg::Vec3 nz(0.0f,0.0f,-1.0f);
if (mask & FRONT_FACE)
{
// front face
vertices->push_back(origin);
vertices->push_back(origin+dx);
vertices->push_back(origin+dx+dz);
vertices->push_back(origin+dz);
normals->push_back(ny);
normals->push_back(ny);
normals->push_back(ny);
normals->push_back(ny);
}
if (mask & BACK_FACE)
{
// back face
vertices->push_back(origin+dy);
vertices->push_back(origin+dy+dz);
vertices->push_back(origin+dy+dx+dz);
vertices->push_back(origin+dy+dx);
normals->push_back(py);
normals->push_back(py);
normals->push_back(py);
normals->push_back(py);
}
if (mask & LEFT_FACE)
{
// left face
vertices->push_back(origin+dy);
vertices->push_back(origin);
vertices->push_back(origin+dz);
vertices->push_back(origin+dy+dz);
normals->push_back(nx);
normals->push_back(nx);
normals->push_back(nx);
normals->push_back(nx);
}
if (mask & RIGHT_FACE)
{
// right face
vertices->push_back(origin+dx+dy);
vertices->push_back(origin+dx+dy+dz);
vertices->push_back(origin+dx+dz);
vertices->push_back(origin+dx);
normals->push_back(px);
normals->push_back(px);
normals->push_back(px);
normals->push_back(px);
}
if (mask & TOP_FACE)
{
// top face
vertices->push_back(origin+dz);
vertices->push_back(origin+dz+dx);
vertices->push_back(origin+dz+dx+dy);
vertices->push_back(origin+dz+dy);
normals->push_back(pz);
normals->push_back(pz);
normals->push_back(pz);
normals->push_back(pz);
}
if (mask & BOTTOM_FACE)
{
// bottom face
vertices->push_back(origin);
vertices->push_back(origin+dy);
vertices->push_back(origin+dx+dy);
vertices->push_back(origin+dx);
normals->push_back(nz);
normals->push_back(nz);
normals->push_back(nz);
normals->push_back(nz);
}
geometry->addPrimitiveSet(new osg::DrawArrays(GL_QUADS, 0,
vertices->size()));
return geode;
}
class SwitchHandler : public osgGA::GUIEventHandler
{
public:
SwitchHandler():
_childNum(0) {}
virtual bool handle(const osgGA::GUIEventAdapter&
ea,osgGA::GUIActionAdapter& aa, osg::Object* object, osg::NodeVisitor* nv)
{
osg::Switch* sw = dynamic_cast<osg::Switch*>(object);
if (!sw) return false;
if (ea.getHandled()) return false;
switch(ea.getEventType())
{
case(osgGA::GUIEventAdapter::KEYDOWN):
{
if (ea.getKey()=='n')
{
++_childNum;
if (_childNum >= sw->getNumChildren()) _childNum = 0;
sw->setSingleChildOn(_childNum);
return true;
}
break;
}
default:
break;
}
return false;
}
protected:
virtual ~SwitchHandler() {}
unsigned int _childNum;
};
osg::Node* createModel(osg::ArgumentParser& arguments)
{
osg::Switch* sw = new osg::Switch;
sw->setEventCallback(new ModelOne::SwitchHandler);
sw->addChild(ModelOne::createCube(ModelOne::FRONT_FACE), true);
sw->addChild(ModelOne::createCube(ModelOne::FRONT_FACE |
ModelOne::BACK_FACE), false);
sw->addChild(ModelOne::createCube(ModelOne::FRONT_FACE |
ModelOne::BACK_FACE | ModelOne::LEFT_FACE), false);
sw->addChild(ModelOne::createCube(ModelOne::FRONT_FACE |
ModelOne::BACK_FACE | ModelOne::LEFT_FACE | ModelOne::RIGHT_FACE), false);
sw->addChild(ModelOne::createCube(ModelOne::FRONT_FACE |
ModelOne::BACK_FACE | ModelOne::LEFT_FACE | ModelOne::RIGHT_FACE |
ModelOne::TOP_FACE), false);
sw->addChild(ModelOne::createCube(ModelOne::FRONT_FACE |
ModelOne::BACK_FACE | ModelOne::LEFT_FACE | ModelOne::RIGHT_FACE |
ModelOne::TOP_FACE | ModelOne::BOTTOM_FACE), false);
return sw;
}
}
namespace ModelTwo
{
osg::AnimationPath* createAnimationPath(const osg::Vec3& center,float
radius,double looptime)
{
// set up the animation path
osg::AnimationPath* animationPath = new osg::AnimationPath;
animationPath->setLoopMode(osg::AnimationPath::LOOP);
int numSamples = 40;
float yaw = 0.0f;
float yaw_delta = 2.0f*osg::PI/((float)numSamples-1.0f);
float roll = osg::inDegrees(30.0f);
double time=0.0f;
double time_delta = looptime/(double)numSamples;
for(int i=0;i<numSamples;++i)
{
osg::Vec3
position(center+osg::Vec3(sinf(yaw)*radius,cosf(yaw)*radius,0.0f));
osg::Quat
rotation(osg::Quat(roll,osg::Vec3(0.0,1.0,0.0))*osg::Quat(-(yaw+osg::inDegrees(90.0f)),osg::Vec3(0.0,0.0,1.0)));
animationPath->insert(time,osg::AnimationPath::ControlPoint(position,rotation));
yaw += yaw_delta;
time += time_delta;
}
return animationPath;
}
osg::Node* createBase(const osg::Vec3& center,float radius)
{
osg::Geode* geode = new osg::Geode;
// set up the texture of the base.
osg::StateSet* stateset = new osg::StateSet();
osg::Image* image = osgDB::readImageFile("Images/lz.rgb");
if (image)
{
osg::Texture2D* texture = new osg::Texture2D;
texture->setImage(image);
stateset->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON);
}
geode->setStateSet( stateset );
osg::HeightField* grid = new osg::HeightField;
grid->allocate(38,39);
grid->setOrigin(center+osg::Vec3(-radius,-radius,0.0f));
grid->setXInterval(radius*2.0f/(float)(38-1));
grid->setYInterval(radius*2.0f/(float)(39-1));
float minHeight = FLT_MAX;
float maxHeight = -FLT_MAX;
unsigned int r;
for(r=0;r<39;++r)
{
for(unsigned int c=0;c<38;++c)
{
float h = vertex[r+c*39][2];
if (h>maxHeight) maxHeight=h;
if (h<minHeight) minHeight=h;
}
}
float hieghtScale = radius*0.5f/(maxHeight-minHeight);
float hieghtOffset = -(minHeight+maxHeight)*0.5f;
for(r=0;r<39;++r)
{
for(unsigned int c=0;c<38;++c)
{
float h = vertex[r+c*39][2];
grid->setHeight(c,r,(h+hieghtOffset)*hieghtScale);
}
}
geode->addDrawable(new osg::ShapeDrawable(grid));
osg::Group* group = new osg::Group;
group->addChild(geode);
return group;
}
osg::Node* createMovingModel(const osg::Vec3& center, float radius)
{
float animationLength = 10.0f;
osg::AnimationPath* animationPath =
createAnimationPath(center,radius,animationLength);
osg::Group* model = new osg::Group;
osg::Node* cessna = osgDB::readNodeFile("cessna.osg");
if (cessna)
{
const osg::BoundingSphere& bs = cessna->getBound();
float size = radius/bs.radius()*0.3f;
osg::MatrixTransform* positioned = new osg::MatrixTransform;
positioned->setDataVariance(osg::Object::STATIC);
positioned->setMatrix(osg::Matrix::translate(-bs.center())*
osg::Matrix::scale(size,size,size)*
osg::Matrix::rotate(osg::inDegrees(180.0f),0.0f,0.0f,2.0f));
positioned->addChild(cessna);
osg::MatrixTransform* xform = new osg::MatrixTransform;
xform->setUpdateCallback(new
osg::AnimationPathCallback(animationPath,0.0f,2.0));
xform->addChild(positioned);
model->addChild(xform);
}
return model;
}
osg::Node* createModel(osg::ArgumentParser& arguments)
{
osg::Vec3 center(0.0f,0.0f,0.0f);
float radius = 100.0f;
osg::Vec3 lightPosition(center+osg::Vec3(0.0f,0.0f,radius));
// the shadower model
osg::Node* shadower = createMovingModel(center,radius*0.5f);
shadower->setNodeMask(CastsShadowTraversalMask);
// the shadowed model
osg::Node* shadowed =
createBase(center-osg::Vec3(0.0f,0.0f,radius*0.25),radius);
shadowed->setNodeMask(ReceivesShadowTraversalMask);
osg::Group* group = new osg::Group;
group->addChild(shadowed);
group->addChild(shadower);
return group;
}
}
*/
namespace ModelThree
{
osg::Group* createModel(/*osg::ArgumentParser& arguments*/)
{
osg::Group* scene = new osg::Group;
osg::ref_ptr<osg::Geode> geode_1 = new osg::Geode;
scene->addChild(geode_1.get());
osg::ref_ptr<osg::Geode> geode_2 = new osg::Geode;
osg::ref_ptr<osg::MatrixTransform> transform_2 = new
osg::MatrixTransform;
transform_2->addChild(geode_2.get());
transform_2->setUpdateCallback(new
osg::AnimationPathCallback(osg::Vec3(0, 0, 0), osg::Z_AXIS,
osg::inDegrees(45.0f)));
scene->addChild(transform_2.get());
osg::ref_ptr<osg::Geode> geode_3 = new osg::Geode;
osg::ref_ptr<osg::MatrixTransform> transform_3 = new
osg::MatrixTransform;
transform_3->addChild(geode_3.get());
transform_3->setUpdateCallback(new
osg::AnimationPathCallback(osg::Vec3(0, 0, 0), osg::Z_AXIS,
osg::inDegrees(-22.5f)));
scene->addChild(transform_3.get());
const float radius = 0.8f;
const float height = 1.0f;
osg::ref_ptr<osg::TessellationHints> hints = new osg::TessellationHints;
hints->setDetailRatio(2.0f);
osg::ref_ptr<osg::ShapeDrawable> shape;
shape = new osg::ShapeDrawable(new osg::Box(osg::Vec3(0.0f, 0.0f,
-2.0f), 10, 10.0f, 0.1f), hints.get());
shape->setColor(osg::Vec4(0.5f, 0.5f, 0.7f, 1.0f));
geode_1->addDrawable(shape.get());
shape = new osg::ShapeDrawable(new osg::Sphere(osg::Vec3(0.0f, 0.0f,
0.0f), radius * 2), hints.get());
shape->setColor(osg::Vec4(0.8f, 0.8f, 0.8f, 1.0f));
geode_1->addDrawable(shape.get());
shape = new osg::ShapeDrawable(new osg::Sphere(osg::Vec3(-3.0f, 0.0f,
0.0f), radius), hints.get());
shape->setColor(osg::Vec4(0.6f, 0.8f, 0.8f, 1.0f));
geode_2->addDrawable(shape.get());
shape = new osg::ShapeDrawable(new osg::Box(osg::Vec3(3.0f, 0.0f,
0.0f), 2 * radius), hints.get());
shape->setColor(osg::Vec4(0.4f, 0.9f, 0.3f, 1.0f));
geode_2->addDrawable(shape.get());
shape = new osg::ShapeDrawable(new osg::Cone(osg::Vec3(0.0f, -3.0f,
0.0f), radius, height), hints.get());
shape->setColor(osg::Vec4(0.2f, 0.5f, 0.7f, 1.0f));
geode_2->addDrawable(shape.get());
shape = new osg::ShapeDrawable(new osg::Cylinder(osg::Vec3(0.0f, 3.0f,
0.0f), radius, height), hints.get());
shape->setColor(osg::Vec4(1.0f, 0.3f, 0.3f, 1.0f));
geode_2->addDrawable(shape.get());
shape = new osg::ShapeDrawable(new osg::Box(osg::Vec3(0.0f, 0.0f,
3.0f), 2.0f, 2.0f, 0.1f), hints.get());
shape->setColor(osg::Vec4(0.8f, 0.8f, 0.4f, 1.0f));
geode_3->addDrawable(shape.get());
// material
osg::ref_ptr<osg::Material> matirial = new osg::Material;
matirial->setColorMode(osg::Material::DIFFUSE);
matirial->setAmbient(osg::Material::FRONT_AND_BACK, osg::Vec4(0, 0, 0,
1));
matirial->setSpecular(osg::Material::FRONT_AND_BACK, osg::Vec4(1, 1, 1,
1));
matirial->setShininess(osg::Material::FRONT_AND_BACK, 64.0f);
scene->getOrCreateStateSet()->setAttributeAndModes(matirial.get(),
osg::StateAttribute::ON);
bool withBaseTexture = true;
//while(arguments.read("--with-base-texture")) { withBaseTexture =
true; }
//while(arguments.read("--no-base-texture")) { withBaseTexture = false;
}
if (withBaseTexture)
{
scene->getOrCreateStateSet()->setTextureAttributeAndModes( 0, new
osg::Texture2D(osgDB::readImageFile("Images/lz.rgb")), osg::StateAttribute::ON);
}
return scene;
}
}
/*
osg::Node* createTestModel(osg::ArgumentParser& arguments)
{
if (arguments.read("-1"))
{
return ModelOne::createModel(arguments);
}
else if (arguments.read("-2"))
{
return ModelTwo::createModel(arguments);
}
else if (arguments.read("-4"))
{
return ModelFour::createModel(arguments);
}
else //if (arguments.read("-3"))
{
return ModelThree::createModel(arguments);
}
}
*/
/*
int main(int argc, char** argv)
{
// use an ArgumentParser object to manage the program arguments.
osg::ArgumentParser arguments(&argc, argv);
// set up the usage document, in case we need to print out how to use this
program.
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()
+ " is the example which demonstrates using of GL_ARB_shadow extension
implemented in osg::Texture class");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName());
arguments.getApplicationUsage()->addCommandLineOption("-h or --help",
"Display this information");
arguments.getApplicationUsage()->addCommandLineOption("--positionalLight",
"Use a positional light.");
arguments.getApplicationUsage()->addCommandLineOption("--directionalLight",
"Use a direction light.");
arguments.getApplicationUsage()->addCommandLineOption("--noUpdate",
"Disable the updating the of light source.");
arguments.getApplicationUsage()->addCommandLineOption("--castsShadowMask",
"Override default castsShadowMask (default - 0x2)");
arguments.getApplicationUsage()->addCommandLineOption("--receivesShadowMask",
"Override default receivesShadowMask (default - 0x1)");
arguments.getApplicationUsage()->addCommandLineOption("--base", "Add a base
geometry to test shadows.");
arguments.getApplicationUsage()->addCommandLineOption("--sv", "Select
ShadowVolume implementation.");
arguments.getApplicationUsage()->addCommandLineOption("--ssm", "Select
SoftShadowMap implementation.");
arguments.getApplicationUsage()->addCommandLineOption("--sm", "Select
ShadowMap implementation.");
arguments.getApplicationUsage()->addCommandLineOption("--pssm", "Select
ParallelSplitShadowMap implementation.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--mapcount",
"ParallelSplitShadowMap texture count.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--mapres",
"ParallelSplitShadowMap texture resolution.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--debug-color",
"ParallelSplitShadowMap display debugging color (only the first 3 maps are
color r=0,g=1,b=2.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--minNearSplit",
"ParallelSplitShadowMap shadow map near offset.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--maxFarDist",
"ParallelSplitShadowMap max far distance to shadow.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--moveVCamFactor",
"ParallelSplitShadowMap move the virtual frustum behind the real camera, (also
back ground object can cast shadow).");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--PolyOffset-Factor",
"ParallelSplitShadowMap set PolygonOffset factor.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--PolyOffset-Unit",
"ParallelSplitShadowMap set PolygonOffset unit.");//ADEGLI
arguments.getApplicationUsage()->addCommandLineOption("--lispsm", "Select
LightSpacePerspectiveShadowMap implementation.");
arguments.getApplicationUsage()->addCommandLineOption("--ViewBounds",
"LiSPSM optimize shadow for view frustum (weakest option)");
arguments.getApplicationUsage()->addCommandLineOption("--CullBounds",
"LiSPSM optimize shadow for bounds of culled objects in view frustum (better
option).");
arguments.getApplicationUsage()->addCommandLineOption("--DrawBounds",
"LiSPSM optimize shadow for bounds of predrawn pixels in view frustum (best &
default).");
arguments.getApplicationUsage()->addCommandLineOption("--mapres", "LiSPSM
texture resolution.");
arguments.getApplicationUsage()->addCommandLineOption("--maxFarDist",
"LiSPSM max far distance to shadow.");
arguments.getApplicationUsage()->addCommandLineOption("--moveVCamFactor",
"LiSPSM move the virtual frustum behind the real camera, (also back ground
object can cast shadow).");
arguments.getApplicationUsage()->addCommandLineOption("--minLightMargin",
"LiSPSM the same as --moveVCamFactor.");
arguments.getApplicationUsage()->addCommandLineOption("-1", "Use test model
one.");
arguments.getApplicationUsage()->addCommandLineOption("-2", "Use test model
two.");
arguments.getApplicationUsage()->addCommandLineOption("-3", "Use test model
three (default).");
arguments.getApplicationUsage()->addCommandLineOption("-4", "Use test model
four - island scene.");
arguments.getApplicationUsage()->addCommandLineOption("--two-sided", "Use
two-sided stencil extension for shadow volumes.");
arguments.getApplicationUsage()->addCommandLineOption("--two-pass", "Use
two-pass stencil for shadow volumes.");
// construct the viewer.
osgViewer::Viewer viewer(arguments);
// if user request help write it out to cout.
if (arguments.read("-h") || arguments.read("--help"))
{
arguments.getApplicationUsage()->write(std::cout);
return 1;
}
bool postionalLight = true;
while (arguments.read("--positionalLight")) postionalLight = true;
while (arguments.read("--directionalLight")) postionalLight = false;
while (arguments.read("--castsShadowMask", CastsShadowTraversalMask ));
while (arguments.read("--receivesShadowMask", ReceivesShadowTraversalMask
));
bool updateLightPosition = true;
while (arguments.read("--noUpdate")) updateLightPosition = false;
// set up the camera manipulators.
{
osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator =
new osgGA::KeySwitchMatrixManipulator;
keyswitchManipulator->addMatrixManipulator( '1', "Trackball", new
osgGA::TrackballManipulator() );
keyswitchManipulator->addMatrixManipulator( '2', "Flight", new
osgGA::FlightManipulator() );
keyswitchManipulator->addMatrixManipulator( '3', "Drive", new
osgGA::DriveManipulator() );
keyswitchManipulator->addMatrixManipulator( '4', "Terrain", new
osgGA::TerrainManipulator() );
std::string pathfile;
char keyForAnimationPath = '5';
while (arguments.read("-p",pathfile))
{
osgGA::AnimationPathManipulator* apm = new
osgGA::AnimationPathManipulator(pathfile);
if (apm || !apm->valid())
{
unsigned int num =
keyswitchManipulator->getNumMatrixManipulators();
keyswitchManipulator->addMatrixManipulator(
keyForAnimationPath, "Path", apm );
keyswitchManipulator->selectMatrixManipulator(num);
++keyForAnimationPath;
}
}
viewer.setCameraManipulator( keyswitchManipulator.get() );
}
// add the state manipulator
viewer.addEventHandler( new
osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
// add stats
viewer.addEventHandler( new osgViewer::StatsHandler() );
// add the record camera path handler
viewer.addEventHandler(new osgViewer::RecordCameraPathHandler);
// add the threading handler
viewer.addEventHandler( new osgViewer::ThreadingHandler() );
osg::ref_ptr<osgShadow::ShadowedScene> shadowedScene = new
osgShadow::ShadowedScene;
shadowedScene->setReceivesShadowTraversalMask(ReceivesShadowTraversalMask);
shadowedScene->setCastsShadowTraversalMask(CastsShadowTraversalMask);
if (arguments.read("--sv"))
{
// hint to tell viewer to request stencil buffer when setting up windows
osg::DisplaySettings::instance()->setMinimumNumStencilBits(8);
osg::ref_ptr<osgShadow::ShadowVolume> sv = new osgShadow::ShadowVolume;
sv->setDynamicShadowVolumes(updateLightPosition);
while (arguments.read("--two-sided"))
sv->setDrawMode(osgShadow::ShadowVolumeGeometry::STENCIL_TWO_SIDED);
while (arguments.read("--two-pass"))
sv->setDrawMode(osgShadow::ShadowVolumeGeometry::STENCIL_TWO_PASS);
shadowedScene->setShadowTechnique(sv.get());
}
else if (arguments.read("--st"))
{
osg::ref_ptr<osgShadow::ShadowTexture> st = new
osgShadow::ShadowTexture;
shadowedScene->setShadowTechnique(st.get());
}
else if (arguments.read("--stsm"))
{
osg::ref_ptr<osgShadow::StandardShadowMap> st = new
osgShadow::StandardShadowMap;
shadowedScene->setShadowTechnique(st.get());
}
else if (arguments.read("--pssm"))
{
int mapcount = 3;
while (arguments.read("--mapcount", mapcount));
osg::ref_ptr<osgShadow::ParallelSplitShadowMap> pssm = new
osgShadow::ParallelSplitShadowMap(NULL,mapcount);
int mapres = 1024;
while (arguments.read("--mapres", mapres))
pssm->setTextureResolution(mapres);
while (arguments.read("--debug-color")) { pssm->setDebugColorOn(); }
int minNearSplit=0;
while (arguments.read("--minNearSplit", minNearSplit))
if ( minNearSplit > 0 ) {
pssm->setMinNearDistanceForSplits(minNearSplit);
std::cout << "ParallelSplitShadowMap :
setMinNearDistanceForSplits(" << minNearSplit <<")" << std::endl;
}
int maxfardist = 0;
while (arguments.read("--maxFarDist", maxfardist))
if ( maxfardist > 0 ) {
pssm->setMaxFarDistance(maxfardist);
std::cout << "ParallelSplitShadowMap : setMaxFarDistance(" <<
maxfardist<<")" << std::endl;
}
int moveVCamFactor = 0;
while (arguments.read("--moveVCamFactor", moveVCamFactor))
if ( maxfardist > 0 ) {
pssm->setMoveVCamBehindRCamFactor(moveVCamFactor);
std::cout << "ParallelSplitShadowMap :
setMoveVCamBehindRCamFactor(" << moveVCamFactor<<")" << std::endl;
}
double polyoffsetfactor = pssm->getPolygonOffset().x();
double polyoffsetunit = pssm->getPolygonOffset().y();
while (arguments.read("--PolyOffset-Factor", polyoffsetfactor));
while (arguments.read("--PolyOffset-Unit", polyoffsetunit));
pssm->setPolygonOffset(osg::Vec2(polyoffsetfactor,polyoffsetunit));
shadowedScene->setShadowTechnique(pssm.get());
}
else if (arguments.read("--ssm"))
{
osg::ref_ptr<osgShadow::SoftShadowMap> sm = new
osgShadow::SoftShadowMap;
shadowedScene->setShadowTechnique(sm.get());
}
else if ( arguments.read("--lispsm") )
{
osg::ref_ptr<osgShadow::MinimalShadowMap> sm = NULL;
if( arguments.read( "--ViewBounds" ) )
sm = new osgShadow::LightSpacePerspectiveShadowMapVB;
else if( arguments.read( "--CullBounds" ) )
sm = new osgShadow::LightSpacePerspectiveShadowMapCB;
else // if( arguments.read( "--DrawBounds" ) ) // default
sm = new osgShadow::LightSpacePerspectiveShadowMapDB;
shadowedScene->setShadowTechnique( sm.get() );
if( sm.valid() )
{
while( arguments.read("--debugHUD") )
sm->setDebugDraw( true );
float minLightMargin = 10.f;
float maxFarPlane = 0;
unsigned int texSize = 1024;
unsigned int baseTexUnit = 0;
unsigned int shadowTexUnit = 1;
while ( arguments.read("--moveVCamFactor", minLightMargin ) );
while ( arguments.read("--minLightMargin", minLightMargin ) );
while ( arguments.read("--maxFarDist", maxFarPlane ) );
while ( arguments.read("--mapres", texSize ));
while ( arguments.read("--baseTextureUnit", baseTexUnit) );
while ( arguments.read("--shadowTextureUnit", shadowTexUnit) );
sm->setMinLightMargin( minLightMargin );
sm->setMaxFarPlane( maxFarPlane );
sm->setTextureSize( osg::Vec2s( texSize, texSize ) );
sm->setShadowTextureCoordIndex( shadowTexUnit );
sm->setShadowTextureUnit( shadowTexUnit );
sm->setBaseTextureCoordIndex( baseTexUnit );
sm->setBaseTextureUnit( baseTexUnit );
}
}
else // if (arguments.read("--sm"))
{
osg::ref_ptr<osgShadow::ShadowMap> sm = new osgShadow::ShadowMap;
shadowedScene->setShadowTechnique(sm.get());
int mapres = 1024;
while (arguments.read("--mapres", mapres))
sm->setTextureSize(osg::Vec2s(mapres,mapres));
}
osg::ref_ptr<osg::Node> model = osgDB::readNodeFiles(arguments);
if (model.valid())
{
model->setNodeMask(CastsShadowTraversalMask |
ReceivesShadowTraversalMask);
}
else
{
model = createTestModel(arguments);
}
// get the bounds of the model.
osg::ComputeBoundsVisitor cbbv;
model->accept(cbbv);
osg::BoundingBox bb = cbbv.getBoundingBox();
osg::Vec4 lightpos;
if (postionalLight)
{
lightpos.set(bb.center().x(), bb.center().y(), bb.zMax() +
bb.radius()*2.0f ,1.0f);
}
else
{
lightpos.set(0.5f,0.25f,0.8f,0.0f);
}
if ( arguments.read("--base"))
{
osg::Geode* geode = new osg::Geode;
osg::Vec3 widthVec(bb.radius(), 0.0f, 0.0f);
osg::Vec3 depthVec(0.0f, bb.radius(), 0.0f);
osg::Vec3 centerBase( (bb.xMin()+bb.xMax())*0.5f,
(bb.yMin()+bb.yMax())*0.5f, bb.zMin()-bb.radius()*0.1f );
geode->addDrawable( osg::createTexturedQuadGeometry(
centerBase-widthVec*1.5f-depthVec*1.5f,
widthVec*3.0f,
depthVec*3.0f) );
geode->setNodeMask(shadowedScene->getReceivesShadowTraversalMask());
geode->getOrCreateStateSet()->setTextureAttributeAndModes(0, new
osg::Texture2D(osgDB::readImageFile("Images/lz.rgb")));
shadowedScene->addChild(geode);
}
osg::ref_ptr<osg::LightSource> ls = new osg::LightSource;
ls->getLight()->setPosition(lightpos);
bool spotlight = false;
if (arguments.read("--spotLight"))
{
spotlight = true;
osg::Vec3 center = bb.center();
osg::Vec3 lightdir = center - osg::Vec3(lightpos.x(), lightpos.y(),
lightpos.z());
lightdir.normalize();
ls->getLight()->setDirection(lightdir);
ls->getLight()->setSpotCutoff(25.0f);
//set the LightSource, only for checking, there is only 1 light in the
scene
osgShadow::ShadowMap* shadowMap =
dynamic_cast<osgShadow::ShadowMap*>(shadowedScene->getShadowTechnique());
if( shadowMap ) shadowMap->setLight(ls.get());
}
if ( arguments.read("--coloured-light"))
{
ls->getLight()->setAmbient(osg::Vec4(1.0,0.0,0.0,1.0));
ls->getLight()->setDiffuse(osg::Vec4(0.0,1.0,0.0,1.0));
}
else
{
ls->getLight()->setAmbient(osg::Vec4(0.2,0.2,0.2,1.0));
ls->getLight()->setDiffuse(osg::Vec4(0.8,0.8,0.8,1.0));
}
shadowedScene->addChild(model.get());
shadowedScene->addChild(ls.get());
viewer.setSceneData(shadowedScene.get());
// create the windows and run the threads.
viewer.realize();
// it is done after viewer.realize() so that the windows are already
initialized
if ( arguments.read("--debugHUD"))
{
osgViewer::Viewer::Windows windows;
viewer.getWindows(windows);
if (windows.empty()) return 1;
osgShadow::ShadowMap* sm =
dynamic_cast<osgShadow::ShadowMap*>(shadowedScene->getShadowTechnique());
if( sm ) {
osg::ref_ptr<osg::Camera> hudCamera = sm->makeDebugHUD();
// set up cameras to rendering on the first window available.
hudCamera->setGraphicsContext(windows[0]);
hudCamera->setViewport(0,0,windows[0]->getTraits()->width,
windows[0]->getTraits()->height);
viewer.addSlave(hudCamera.get(), false);
}
}
// osgDB::writeNodeFile(*group,"test.osg");
while (!viewer.done())
{
{
osgShadow::MinimalShadowMap * msm =
dynamic_cast<osgShadow::MinimalShadowMap*>( shadowedScene->getShadowTechnique()
);
if( msm ) {
// If scene decorated by CoordinateSystemNode try to find
localToWorld
// and set modellingSpaceToWorld matrix to optimize scene
bounds computation
osg::NodePath np = viewer.getCoordinateSystemNodePath();
if( !np.empty() ) {
osg::CoordinateSystemNode * csn =
dynamic_cast<osg::CoordinateSystemNode *>( np.back() );
if( csn ) {
osg::Vec3d pos =
viewer.getCameraManipulator()->getMatrix().getTrans();
msm->setModellingSpaceToWorldTransform
( csn->computeLocalCoordinateFrame( pos ) );
}
}
}
}
if (updateLightPosition)
{
float t = viewer.getFrameStamp()->getSimulationTime();
if (postionalLight)
{
lightpos.set(bb.center().x()+sinf(t)*bb.radius(),
bb.center().y() + cosf(t)*bb.radius(), bb.zMax() + bb.radius()*3.0f ,1.0f);
}
else
{
lightpos.set(sinf(t),cosf(t),1.0f,0.0f);
}
ls->getLight()->setPosition(lightpos);
osg::Vec3f lightDir(-lightpos.x(),-lightpos.y(),-lightpos.z());
if(spotlight)
lightDir = osg::Vec3(bb.center().x()+sinf(t)*bb.radius()/2.0,
bb.center().y() + cosf(t)*bb.radius()/2.0, bb.center().z())
- osg::Vec3(lightpos.x(), lightpos.y(), lightpos.z()) ;
lightDir.normalize();
ls->getLight()->setDirection(lightDir);
}
viewer.frame();
}
return 0;
}
*/
int main(int argc, char** argv)
{
osgViewer::CompositeViewer viewer;
osgViewer::View* view = new osgViewer::View;
viewer.addView(view);
view->setUpViewInWindow(50, 50, 1024, 768, 0);
osg::ref_ptr<osgShadow::ShadowedScene> shadowedScene = new
osgShadow::ShadowedScene;
shadowedScene->setReceivesShadowTraversalMask(ReceivesShadowTraversalMask);
shadowedScene->setCastsShadowTraversalMask(CastsShadowTraversalMask);
osg::ref_ptr<osgShadow::ShadowMap> sm = new osgShadow::ShadowMap;
shadowedScene->setShadowTechnique(sm.get());
int mapres = 1024;
sm->setTextureSize(osg::Vec2s(mapres,mapres));
osg::Group* m_World = new osg::Group;
m_World->addChild(ModelThree::createModel());
// get the bounds of the model.
osg::ComputeBoundsVisitor cbbv;
m_World->accept(cbbv);
osg::BoundingBox bb = cbbv.getBoundingBox();
osg::Vec4 lightpos;
viewer.getView(0)->getEventHandlers().push_front(new
osgViewer::StatsHandler);
viewer.getView(0)->setCameraManipulator(new osgGA::TrackballManipulator());
//std::vector<osg::Camera*> cameras;
//viewer.getCameras(cameras);
//cameras[0]->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
//cameras[0]->setProjectionMatrixAsPerspective(40.0, 1.333333333, 1.0,
SKYDOME_RANGE*1.1f);
bool postionalLight = true;
if (postionalLight)
{
lightpos.set(bb.center().x(), bb.center().y(), bb.zMax() +
bb.radius()*2.0f ,1.0f);
}
else
{
lightpos.set(0.5f,0.25f,0.8f,0.0f);
}
osg::ref_ptr<osg::LightSource> ls = new osg::LightSource;
ls->getLight()->setPosition(lightpos);
sm->setLight(ls->getLight());
shadowedScene->addChild(m_World);
shadowedScene->addChild(ls.get());
bool updateLightPosition = true;
viewer.realize();
viewer.getView(0)->setSceneData(shadowedScene.get());
bool debugHUD = true;
if(debugHUD)
{
osgViewer::Viewer::Windows windows;
viewer.getWindows(windows);
if (windows.empty()) return 1;
osgShadow::ShadowMap* sm =
dynamic_cast<osgShadow::ShadowMap*>(shadowedScene->getShadowTechnique());
if( sm ) {
osg::ref_ptr<osg::Camera> hudCamera = sm->makeDebugHUD();
// set up cameras to rendering on the first window available.
hudCamera->setGraphicsContext(windows[0]);
hudCamera->setViewport(0,0,windows[0]->getTraits()->width,
windows[0]->getTraits()->height);
viewer.getView(0)->addSlave(hudCamera.get(), false);
}
}
while( !viewer.done() )
{
if (updateLightPosition)
{
float t = viewer.getFrameStamp()->getSimulationTime();
if (postionalLight)
{
lightpos.set(bb.center().x()+sinf(t)*bb.radius(),
bb.center().y() + cosf(t)*bb.radius(), bb.zMax() + bb.radius()*3.0f ,1.0f);
}
else
{
lightpos.set(sinf(t),cosf(t),1.0f,0.0f);
}
ls->getLight()->setPosition(lightpos);
osg::Vec3f lightDir(-lightpos.x(),-lightpos.y(),-lightpos.z());
lightDir.normalize();
ls->getLight()->setDirection(lightDir);
}
viewer.frame();
}
}_______________________________________________
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