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Added projectorMatrix parameter support to *SphericalDisplay setup functions and .view, this allows one

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to flip, rotate, or turn up side the position of the projector.  Note, projector at base of display is the default.
This commit is contained in:
Robert Osfield
2008-01-28 15:41:42 +00:00
parent 2db7fe500f
commit 54129105a4
3 changed files with 130 additions and 143 deletions
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214
src/osgViewer/View.cpp
View File

@@ -703,7 +703,7 @@ void View::setUpViewOnSingleScreen(unsigned int screenNum)
_camera->setReadBuffer(buffer);
}
static osg::Geometry* create3DSphericalDisplayDistortionMesh(const osg::Vec3& origin, const osg::Vec3& widthVector, const osg::Vec3& heightVector, double sphere_radius, double collar_radius,osg::Image* intensityMap)
static osg::Geometry* create3DSphericalDisplayDistortionMesh(const osg::Vec3& origin, const osg::Vec3& widthVector, const osg::Vec3& heightVector, double sphere_radius, double collar_radius,osg::Image* intensityMap, const osg::Matrix& projectorMatrix)
{
osg::Vec3d center(0.0,0.0,0.0);
osg::Vec3d eye(0.0,0.0,0.0);
@@ -747,8 +747,7 @@ static osg::Geometry* create3DSphericalDisplayDistortionMesh(const osg::Vec3& or
osg::Vec3 cursor = bottom;
int i,j;
if (centerProjection)
{
for(i=0;i<noSteps;++i)
@@ -772,7 +771,7 @@ static osg::Geometry* create3DSphericalDisplayDistortionMesh(const osg::Vec3& or
cos(phi));
vertices->push_back(cursor);
texcoords0->push_back(texcoord);
texcoords0->push_back(texcoord * projectorMatrix);
osg::Vec2 texcoord1(theta/(2.0*osg::PI), 1.0f - phi/osg::PI_2);
if (intensityMap)
@@ -816,7 +815,7 @@ static osg::Geometry* create3DSphericalDisplayDistortionMesh(const osg::Vec3& or
z / sphere_radius);
vertices->push_back(cursor);
texcoords0->push_back(texcoord);
texcoords0->push_back(texcoord * projectorMatrix);
osg::Vec2 texcoord1(theta/(2.0*osg::PI), 1.0f - phi/osg::PI_2);
if (intensityMap)
@@ -858,7 +857,7 @@ static osg::Geometry* create3DSphericalDisplayDistortionMesh(const osg::Vec3& or
return geometry;
}
void View::setUpViewFor3DSphericalDisplay(double radius, double collar, unsigned int screenNum, osg::Image* intensityMap)
void View::setUpViewFor3DSphericalDisplay(double radius, double collar, unsigned int screenNum, osg::Image* intensityMap, const osg::Matrixd& projectorMatrix)
{
osg::notify(osg::INFO)<<"View::setUpViewFor3DSphericalDisplay(rad="<<radius<<", cllr="<<collar<<", sn="<<screenNum<<", im="<<intensityMap<<")"<<std::endl;
osg::GraphicsContext::WindowingSystemInterface* wsi = osg::GraphicsContext::getWindowingSystemInterface();
@@ -868,7 +867,6 @@ void View::setUpViewFor3DSphericalDisplay(double radius, double collar, unsigned
return;
}
osg::GraphicsContext::ScreenIdentifier si;
si.readDISPLAY();
@@ -1047,7 +1045,7 @@ void View::setUpViewFor3DSphericalDisplay(double radius, double collar, unsigned
// distortion correction set up.
{
osg::Geode* geode = new osg::Geode();
geode->addDrawable(create3DSphericalDisplayDistortionMesh(osg::Vec3(0.0f,0.0f,0.0f), osg::Vec3(width,0.0f,0.0f), osg::Vec3(0.0f,height,0.0f), radius, collar, applyIntensityMapAsColours ? intensityMap : 0));
geode->addDrawable(create3DSphericalDisplayDistortionMesh(osg::Vec3(0.0f,0.0f,0.0f), osg::Vec3(width,0.0f,0.0f), osg::Vec3(0.0f,height,0.0f), radius, collar, applyIntensityMapAsColours ? intensityMap : 0, projectorMatrix));
// new we need to add the texture to the mesh, we do so by creating a
// StateSet to contain the Texture StateAttribute.
@@ -1063,14 +1061,14 @@ void View::setUpViewFor3DSphericalDisplay(double radius, double collar, unsigned
osg::ref_ptr<osg::Camera> camera = new osg::Camera;
camera->setGraphicsContext(gc.get());
camera->setClearMask(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT );
camera->setClearColor( osg::Vec4(0.1,0.1,1.0,1.0) );
camera->setClearColor( osg::Vec4(0.0,0.0,0.0,1.0) );
camera->setViewport(new osg::Viewport(0, 0, width, height));
GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
camera->setDrawBuffer(buffer);
camera->setReadBuffer(buffer);
camera->setReferenceFrame(osg::Camera::ABSOLUTE_RF);
camera->setAllowEventFocus(false);
//camera->setInheritanceMask(camera->getInheritanceMask() & ~osg::CullSettings::CLEAR_COLOR & ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE);
camera->setInheritanceMask(camera->getInheritanceMask() & ~osg::CullSettings::CLEAR_COLOR & ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE);
//camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
camera->setProjectionMatrixAsOrtho2D(0,width,0,height);
@@ -1093,7 +1091,7 @@ void View::setUpViewFor3DSphericalDisplay(double radius, double collar, unsigned
}
}
static osg::Geometry* createParoramicSphericalDisplayDistortionMesh(const osg::Vec3& origin, const osg::Vec3& widthVector, const osg::Vec3& heightVector, double sphere_radius, double collar_radius, osg::Image* intensityMap)
static osg::Geometry* createParoramicSphericalDisplayDistortionMesh(const osg::Vec3& origin, const osg::Vec3& widthVector, const osg::Vec3& heightVector, double sphere_radius, double collar_radius, osg::Image* intensityMap, const osg::Matrix& projectorMatrix)
{
osg::Vec3d center(0.0,0.0,0.0);
osg::Vec3d eye(0.0,0.0,0.0);
@@ -1110,7 +1108,6 @@ static osg::Geometry* createParoramicSphericalDisplayDistortionMesh(const osg::V
osg::notify(osg::INFO)<<"createParoramicSphericalDisplayDistortionMesh : Projector position = "<<projector<<std::endl;
osg::notify(osg::INFO)<<"createParoramicSphericalDisplayDistortionMesh : distance = "<<distance<<std::endl;
// create the quad to visualize.
osg::Geometry* geometry = new osg::Geometry();
@@ -1137,48 +1134,49 @@ static osg::Geometry* createParoramicSphericalDisplayDistortionMesh(const osg::V
osg::Vec3 top = origin + yAxis*height;
osg::Vec3d screenCenter = origin + widthVector*0.5f + heightVector*0.5f;
osg::Vec3 screenCenter = origin + widthVector*0.5f + heightVector*0.5f;
float screenRadius = heightVector.length() * 0.5f;
double rotation = 0.0;
osg::Vec3 cursor = bottom;
int i,j;
int midSteps = noSteps/2;
for(i=0;i<midSteps;++i)
geometry->getOrCreateStateSet()->setMode(GL_CULL_FACE, osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED);
for(int i=0;i<noSteps;++i)
{
osg::Vec3 cursor = bottom+dy*(float)i;
for(j=0;j<midSteps;++j)
for(int j=0;j<noSteps;++j)
{
osg::Vec2 delta(cursor.x() - screenCenter.x(), cursor.y() - screenCenter.y());
double theta = atan2(delta.x(), -delta.y());
theta += 2*osg::PI;
double phi = osg::PI_2 * delta.length() / screenRadius;
if (phi > osg::PI_2) phi = osg::PI_2;
double f = distance * sin(phi);
double e = distance * cos(phi) + sqrt( sphere_radius*sphere_radius - f*f);
double l = e * cos(phi);
double h = e * sin(phi);
double gamma = atan2(h, l-distance);
osg::Vec2 texcoord(theta/(2.0*osg::PI), 1.0-gamma/osg::PI);
// osg::notify(osg::NOTICE)<<"cursor = "<<cursor<< " theta = "<<theta<< "phi="<<phi<<" gamma = "<<gamma<<" texcoord="<<texcoord<<std::endl;
if (flip)
vertices->push_back(osg::Vec3(cursor.x(), top.y()-(cursor.y()-origin.y()),cursor.z()));
else
vertices->push_back(cursor);
osg::Vec2 texcoord(double(i)/double(noSteps-1), double(j)/double(noSteps-1));
double theta = texcoord.x() * 2.0 * osg::PI;
double phi = (1.0-texcoord.y()) * osg::PI;
texcoords0->push_back( texcoord_flip ? osg::Vec2(texcoord.x(), 1.0f - texcoord.y()) : texcoord);
if (texcoord_flip) texcoord.y() = 1.0f - texcoord.y();
osg::Vec3 pos(sin(phi)*sin(theta), sin(phi)*cos(theta), cos(phi));
pos = pos*projectorMatrix;
double alpha = atan2(pos.x(), pos.y());
if (alpha<0.0) alpha += 2.0*osg::PI;
double beta = atan2(sqrt(pos.x()*pos.x() + pos.y()*pos.y()), pos.z());
if (beta<0.0) beta += 2.0*osg::PI;
double gamma = atan2(sqrt(pos.x()*pos.x() + pos.y()*pos.y()), pos.z()+distance);
if (gamma<0.0) gamma += 2.0*osg::PI;
osg::Vec3 v = screenCenter + osg::Vec3(sin(alpha)*gamma*2.0/osg::PI, -cos(alpha)*gamma*2.0/osg::PI, 0.0f)*screenRadius;
if (flip)
vertices->push_back(osg::Vec3(v.x(), top.y()-(v.y()-origin.y()),v.z()));
else
vertices->push_back(v);
texcoords0->push_back( texcoord );
osg::Vec2 texcoord1(theta/(2.0*osg::PI), 1.0f - phi/osg::PI_2);
osg::Vec2 texcoord1(alpha/(2.0*osg::PI), 1.0f - beta/osg::PI);
if (intensityMap)
{
{
colors->push_back(intensityMap->getColor(texcoord1));
}
else
@@ -1187,93 +1185,10 @@ static osg::Geometry* createParoramicSphericalDisplayDistortionMesh(const osg::V
if (texcoords1) texcoords1->push_back( texcoord1 );
}
if (j+1<midSteps) cursor += dx;
}
for(;j<noSteps;++j)
{
osg::Vec2 delta(cursor.x() - screenCenter.x(), cursor.y() - screenCenter.y());
double theta = atan2(delta.x(), -delta.y());
double phi = osg::PI_2 * delta.length() / screenRadius;
if (phi > osg::PI_2) phi = osg::PI_2;
double f = distance * sin(phi);
double e = distance * cos(phi) + sqrt( sphere_radius*sphere_radius - f*f);
double l = e * cos(phi);
double h = e * sin(phi);
double gamma = atan2(h, l-distance);
osg::Vec2 texcoord(theta/(2.0*osg::PI), 1.0-gamma/osg::PI);
// osg::notify(osg::NOTICE)<<"cursor = "<<cursor<< " theta = "<<theta<< "phi="<<phi<<" gamma = "<<gamma<<" texcoord="<<texcoord<<std::endl;
if (flip)
vertices->push_back(osg::Vec3(cursor.x(), top.y()-(cursor.y()-origin.y()),cursor.z()));
else
vertices->push_back(cursor);
texcoords0->push_back( texcoord_flip ? osg::Vec2(texcoord.x(), 1.0f - texcoord.y()) : texcoord);
osg::Vec2 texcoord1(theta/(2.0*osg::PI), 1.0f - phi/osg::PI_2);
if (intensityMap)
{
colors->push_back(intensityMap->getColor(texcoord1));
}
else
{
colors->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
if (texcoords1) texcoords1->push_back( texcoord1 );
}
cursor += dx;
}
// osg::notify(osg::NOTICE)<<std::endl;
}
for(;i<noSteps;++i)
{
osg::Vec3 cursor = bottom+dy*(float)i;
for(j=0;j<noSteps;++j)
{
osg::Vec2 delta(cursor.x() - screenCenter.x(), cursor.y() - screenCenter.y());
double theta = atan2(delta.x(), -delta.y());
if (theta<0.0) theta += 2*osg::PI;
double phi = osg::PI_2 * delta.length() / screenRadius;
if (phi > osg::PI_2) phi = osg::PI_2;
double f = distance * sin(phi);
double e = distance * cos(phi) + sqrt( sphere_radius*sphere_radius - f*f);
double l = e * cos(phi);
double h = e * sin(phi);
double gamma = atan2(h, l-distance);
osg::Vec2 texcoord(theta/(2.0*osg::PI), 1.0-gamma/osg::PI);
// osg::notify(osg::NOTICE)<<"cursor = "<<cursor<< " theta = "<<theta<< "phi="<<phi<<" gamma = "<<gamma<<" texcoord="<<texcoord<<std::endl;
if (flip)
vertices->push_back(osg::Vec3(cursor.x(), top.y()-(cursor.y()-origin.y()),cursor.z()));
else
vertices->push_back(cursor);
texcoords0->push_back( texcoord_flip ? osg::Vec2(texcoord.x(), 1.0f - texcoord.y()) : texcoord);
osg::Vec2 texcoord1(theta/(2.0*osg::PI), 1.0f - phi/osg::PI_2);
if (intensityMap)
{
colors->push_back(intensityMap->getColor(texcoord1));
}
else
{
colors->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
if (texcoords1) texcoords1->push_back( texcoord1 );
}
cursor += dx;
}
// osg::notify(osg::NOTICE)<<std::endl;
}
// pass the created vertex array to the points geometry object.
geometry->setVertexArray(vertices);
@@ -1284,21 +1199,42 @@ static osg::Geometry* createParoramicSphericalDisplayDistortionMesh(const osg::V
geometry->setTexCoordArray(0,texcoords0);
if (texcoords1) geometry->setTexCoordArray(1,texcoords1);
for(i=0;i<noSteps-1;++i)
osg::DrawElementsUShort* elements = new osg::DrawElementsUShort(osg::PrimitiveSet::TRIANGLES);
geometry->addPrimitiveSet(elements);
for(int i=0;i<noSteps-1;++i)
{
osg::DrawElementsUShort* elements = new osg::DrawElementsUShort(osg::PrimitiveSet::QUAD_STRIP);
for(j=0;j<noSteps;++j)
for(int j=0;j<noSteps-1;++j)
{
elements->push_back(j+(i+1)*noSteps);
elements->push_back(j+(i)*noSteps);
int i1 = j+(i+1)*noSteps;
int i2 = j+(i)*noSteps;
int i3 = j+1+(i)*noSteps;
int i4 = j+1+(i+1)*noSteps;
osg::Vec3& v1 = (*vertices)[i1];
osg::Vec3& v2 = (*vertices)[i2];
osg::Vec3& v3 = (*vertices)[i3];
osg::Vec3& v4 = (*vertices)[i4];
if ((v1-screenCenter).length()>screenRadius) continue;
if ((v2-screenCenter).length()>screenRadius) continue;
if ((v3-screenCenter).length()>screenRadius) continue;
if ((v4-screenCenter).length()>screenRadius) continue;
elements->push_back(i1);
elements->push_back(i2);
elements->push_back(i3);
elements->push_back(i1);
elements->push_back(i3);
elements->push_back(i4);
}
geometry->addPrimitiveSet(elements);
}
return geometry;
}
void View::setUpViewForPanoramicSphericalDisplay(double radius, double collar, unsigned int screenNum, osg::Image* intensityMap)
void View::setUpViewForPanoramicSphericalDisplay(double radius, double collar, unsigned int screenNum, osg::Image* intensityMap, const osg::Matrixd& projectorMatrix)
{
osg::notify(osg::INFO)<<"View::setUpViewForPanoramicSphericalDisplay(rad="<<radius<<", cllr="<<collar<<", sn="<<screenNum<<", im="<<intensityMap<<")"<<std::endl;
@@ -1386,7 +1322,7 @@ void View::setUpViewForPanoramicSphericalDisplay(double radius, double collar, u
// distortion correction set up.
{
osg::Geode* geode = new osg::Geode();
geode->addDrawable(createParoramicSphericalDisplayDistortionMesh(osg::Vec3(0.0f,0.0f,0.0f), osg::Vec3(width,0.0f,0.0f), osg::Vec3(0.0f,height,0.0f), radius, collar, applyIntensityMapAsColours ? intensityMap : 0));
geode->addDrawable(createParoramicSphericalDisplayDistortionMesh(osg::Vec3(0.0f,0.0f,0.0f), osg::Vec3(width,0.0f,0.0f), osg::Vec3(0.0f,height,0.0f), radius, collar, applyIntensityMapAsColours ? intensityMap : 0, projectorMatrix));
// new we need to add the texture to the mesh, we do so by creating a
// StateSet to contain the Texture StateAttribute.
@@ -1406,14 +1342,14 @@ void View::setUpViewForPanoramicSphericalDisplay(double radius, double collar, u
osg::ref_ptr<osg::Camera> camera = new osg::Camera;
camera->setGraphicsContext(gc.get());
camera->setClearMask(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT );
camera->setClearColor( osg::Vec4(0.1,0.1,1.0,1.0) );
camera->setClearColor( osg::Vec4(0.0,0.0,0.0,1.0) );
camera->setViewport(new osg::Viewport(0, 0, width, height));
GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
camera->setDrawBuffer(buffer);
camera->setReadBuffer(buffer);
camera->setReferenceFrame(osg::Camera::ABSOLUTE_RF);
camera->setAllowEventFocus(false);
//camera->setInheritanceMask(camera->getInheritanceMask() & ~osg::CullSettings::CLEAR_COLOR & ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE);
camera->setInheritanceMask(camera->getInheritanceMask() & ~osg::CullSettings::CLEAR_COLOR & ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE);
//camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
camera->setProjectionMatrixAsOrtho2D(0,width,0,height);