// Copyright (C) 2008 Tim Moore
+// Copyright (C) 2011 Mathias Froehlich
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
#include "CameraGroup.hxx"
+#include "fg_props.hxx"
#include "globals.hxx"
#include "renderer.hxx"
#include "FGEventHandler.hxx"
#include "WindowSystemAdapter.hxx"
#include <simgear/props/props.hxx>
#include <simgear/structure/OSGUtils.hxx>
+#include <simgear/structure/OSGVersion.hxx>
#include <simgear/scene/material/EffectCullVisitor.hxx>
#include <simgear/scene/util/RenderConstants.hxx>
+#include <simgear/scene/tgdb/userdata.hxx>
#include <algorithm>
#include <cstring>
#include <string>
#include <osg/Camera>
+#include <osg/Geometry>
#include <osg/GraphicsContext>
+#include <osg/io_utils>
#include <osg/Math>
#include <osg/Matrix>
+#include <osg/Notify>
+#include <osg/Program>
#include <osg/Quat>
+#include <osg/TexMat>
#include <osg/Vec3d>
#include <osg/Viewport>
#include <osgViewer/GraphicsWindow>
#include <osgViewer/Renderer>
+static osg::Matrix
+invert(const osg::Matrix& matrix)
+{
+ return osg::Matrix::inverse(matrix);
+}
+
+/// Returns the zoom factor of the master camera.
+/// The reference fov is the historic 55 deg
+static double
+zoomFactor()
+{
+ double fov = fgGetDouble("/sim/current-view/field-of-view", 55);
+ if (fov < 1)
+ fov = 1;
+ return tan(55*0.5*SG_DEGREES_TO_RADIANS)/tan(fov*0.5*SG_DEGREES_TO_RADIANS);
+}
+
+static osg::Vec2d
+preMult(const osg::Vec2d& v, const osg::Matrix& m)
+{
+ osg::Vec3d tmp = m.preMult(osg::Vec3(v, 0));
+ return osg::Vec2d(tmp[0], tmp[1]);
+}
+
+static osg::Matrix
+relativeProjection(const osg::Matrix& P0, const osg::Matrix& R, const osg::Vec2d ref[2],
+ const osg::Matrix& pP, const osg::Matrix& pR, const osg::Vec2d pRef[2])
+{
+ // Track the way from one projection space to the other:
+ // We want
+ // P = T*S*P0
+ // where P0 is the projection template sensible for the given window size,
+ // T is a translation matrix and S a scale matrix.
+ // We need to determine T and S so that the reference points in the parents
+ // projection space match the two reference points in this cameras projection space.
+
+ // Starting from the parents camera projection space, we get into this cameras
+ // projection space by the transform matrix:
+ // P*R*inv(pP*pR) = T*S*P0*R*inv(pP*pR)
+ // So, at first compute that matrix without T*S and determine S and T from that
+
+ // Ok, now osg uses the inverse matrix multiplication order, thus:
+ osg::Matrix PtoPwithoutTS = invert(pR*pP)*R*P0;
+ // Compute the parents reference points in the current projection space
+ // without the yet unknown T and S
+ osg::Vec2d pRefInThis[2] = {
+ preMult(pRef[0], PtoPwithoutTS),
+ preMult(pRef[1], PtoPwithoutTS)
+ };
+
+ // To get the same zoom, rescale to match the parents size
+ double s = (ref[0] - ref[1]).length()/(pRefInThis[0] - pRefInThis[1]).length();
+ osg::Matrix S = osg::Matrix::scale(s, s, 1);
+
+ // For the translation offset, incorporate the now known scale
+ // and recompute the position ot the first reference point in the
+ // currents projection space without the yet unknown T.
+ pRefInThis[0] = preMult(pRef[0], PtoPwithoutTS*S);
+ // The translation is then the difference of the reference points
+ osg::Matrix T = osg::Matrix::translate(osg::Vec3d(ref[0] - pRefInThis[0], 0));
+
+ // Compose and return the desired final projection matrix
+ return P0*S*T;
+}
+
namespace flightgear
{
using namespace osg;
0.0, 0.0, center*ratio, 1.0));
}
}
+}
-void installCullVisitor(Camera* camera)
+namespace flightgear
+{
+void CameraInfo::updateCameras()
{
- osgViewer::Renderer* renderer
- = static_cast<osgViewer::Renderer*>(camera->getRenderer());
- for (int i = 0; i < 2; ++i) {
- osgUtil::SceneView* sceneView = renderer->getSceneView(i);
- sceneView->setCullVisitor(new simgear::EffectCullVisitor);
+ bufferSize->set( osg::Vec2f( width, height ) );
+
+ for (CameraMap::iterator ii = cameras.begin(); ii != cameras.end(); ++ii ) {
+ float f = ii->second.scaleFactor;
+ if ( f == 0.0f ) continue;
+ ii->second.camera->getViewport()->setViewport(x*f, y*f, width*f, height*f);
+ }
+
+ for (RenderBufferMap::iterator ii = buffers.begin(); ii != buffers.end(); ++ii ) {
+ float f = ii->second.scaleFactor;
+ if ( f == 0.0f ) continue;
+ osg::Texture2D* texture = ii->second.texture.get();
+ if ( texture->getTextureHeight() != height*f || texture->getTextureWidth() != width*f ) {
+ texture->setTextureSize( width*f, height*f );
+ texture->dirtyTextureObject();
+ }
}
}
+
+void CameraInfo::resized(double w, double h)
+{
+ bufferSize->set( osg::Vec2f( w, h ) );
+
+ for (RenderBufferMap::iterator ii = buffers.begin(); ii != buffers.end(); ++ii) {
+ float s = ii->second.scaleFactor;
+ if ( s == 0.0f ) continue;
+ ii->second.texture->setTextureSize( w * s, h * s );
+ ii->second.texture->dirtyTextureObject();
+ }
+
+ for (CameraMap::iterator ii = cameras.begin(); ii != cameras.end(); ++ii) {
+ RenderStageInfo& rsi = ii->second;
+ if (!rsi.resizable ||
+ rsi.camera->getRenderTargetImplementation() != osg::Camera::FRAME_BUFFER_OBJECT ||
+ rsi.scaleFactor == 0.0f )
+ continue;
+
+ Viewport* vp = rsi.camera->getViewport();
+ vp->width() = w * rsi.scaleFactor;
+ vp->height() = h * rsi.scaleFactor;
+
+ osgViewer::Renderer* renderer
+ = static_cast<osgViewer::Renderer*>(rsi.camera->getRenderer());
+ for (int i = 0; i < 2; ++i) {
+ osgUtil::SceneView* sceneView = renderer->getSceneView(i);
+ sceneView->getRenderStage()->setFrameBufferObject(0);
+ sceneView->getRenderStage()->setCameraRequiresSetUp(true);
+ if (sceneView->getRenderStageLeft()) {
+ sceneView->getRenderStageLeft()->setFrameBufferObject(0);
+ sceneView->getRenderStageLeft()->setCameraRequiresSetUp(true);
+ }
+ if (sceneView->getRenderStageRight()) {
+ sceneView->getRenderStageRight()->setFrameBufferObject(0);
+ sceneView->getRenderStageRight()->setCameraRequiresSetUp(true);
+ }
+ }
+ }
}
-namespace flightgear
+osg::Camera* CameraInfo::getCamera(CameraKind k) const
{
-void updateCameras(const CameraInfo* info)
+ CameraMap::const_iterator ii = cameras.find( k );
+ if (ii == cameras.end())
+ return 0;
+ return ii->second.camera.get();
+}
+
+osg::Texture2D* CameraInfo::getBuffer(RenderBufferInfo::Kind k) const
{
- if (info->camera.valid())
- info->camera->getViewport()->setViewport(info->x, info->y,
- info->width, info->height);
- if (info->farCamera.valid())
- info->farCamera->getViewport()->setViewport(info->x, info->y,
- info->width, info->height);
+ RenderBufferMap::const_iterator ii = buffers.find(k);
+ if (ii == buffers.end())
+ return 0;
+ return ii->second.texture.get();
}
-CameraInfo* CameraGroup::addCamera(unsigned flags, Camera* camera,
- const Matrix& view,
- const Matrix& projection,
- bool useMasterSceneData)
+int CameraInfo::getMainSlaveIndex() const
{
- CameraInfo* info = new CameraInfo(flags);
- // The camera group will always update the camera
- camera->setReferenceFrame(Transform::ABSOLUTE_RF);
+ return cameras.find( MAIN_CAMERA )->second.slaveIndex;
+}
- Camera* farCamera = 0;
- if ((flags & (GUI | ORTHO)) == 0) {
- farCamera = new Camera;
- farCamera->setAllowEventFocus(camera->getAllowEventFocus());
- farCamera->setGraphicsContext(camera->getGraphicsContext());
- farCamera->setCullingMode(camera->getCullingMode());
- farCamera->setInheritanceMask(camera->getInheritanceMask());
- farCamera->setReferenceFrame(Transform::ABSOLUTE_RF);
- // Each camera's viewport is written when the window is
- // resized; if the the viewport isn't copied here, it gets updated
- // twice and ends up with the wrong value.
- farCamera->setViewport(simgear::clone(camera->getViewport()));
- _viewer->addSlave(farCamera, view, projection, useMasterSceneData);
- installCullVisitor(farCamera);
- info->farCamera = farCamera;
- info->farSlaveIndex = _viewer->getNumSlaves() - 1;
- farCamera->setRenderOrder(Camera::POST_RENDER, info->farSlaveIndex);
- camera->setCullMask(camera->getCullMask() & ~simgear::BACKGROUND_BIT);
- camera->setClearMask(GL_DEPTH_BUFFER_BIT);
- }
- _viewer->addSlave(camera, view, projection, useMasterSceneData);
- installCullVisitor(camera);
- info->camera = camera;
- info->slaveIndex = _viewer->getNumSlaves() - 1;
- camera->setRenderOrder(Camera::POST_RENDER, info->slaveIndex);
- _cameras.push_back(info);
- return info;
+void CameraInfo::setMatrices(osg::Camera* c)
+{
+ view->set( c->getViewMatrix() );
+ viewInverse->set( osg::Matrix::inverse( c->getViewMatrix() ) );
+ projInverse->set( osg::Matrix::inverse( c->getProjectionMatrix() ) );
}
void CameraGroup::update(const osg::Vec3d& position,
* osg::Matrix::rotate(orientation.inverse()));
_viewer->getCamera()->setViewMatrix(masterView);
const Matrix& masterProj = _viewer->getCamera()->getProjectionMatrix();
+ double masterZoomFactor = zoomFactor();
for (CameraList::iterator i = _cameras.begin(); i != _cameras.end(); ++i) {
const CameraInfo* info = i->get();
- const View::Slave& slave = _viewer->getSlave(info->slaveIndex);
- // refreshes camera viewports (for now)
- updateCameras(info);
- Camera* camera = info->camera.get();
- Matrix viewMatrix;
- if ((info->flags & VIEW_ABSOLUTE) != 0)
- viewMatrix = slave._viewOffset;
- else
- viewMatrix = masterView * slave._viewOffset;
- camera->setViewMatrix(viewMatrix);
- Matrix projectionMatrix;
- if ((info->flags & PROJECTION_ABSOLUTE) != 0)
- projectionMatrix = slave._projectionOffset;
- else
- projectionMatrix = masterProj * slave._projectionOffset;
-
- if (!info->farCamera.valid()) {
- camera->setProjectionMatrix(projectionMatrix);
- } else {
- Camera* farCamera = info->farCamera.get();
- farCamera->setViewMatrix(viewMatrix);
- double left, right, bottom, top, parentNear, parentFar;
- projectionMatrix.getFrustum(left, right, bottom, top,
- parentNear, parentFar);
- if (parentFar < _nearField || _nearField == 0.0f) {
+
+ Camera* camera = info->getCamera(MAIN_CAMERA);
+ if ( camera ) {
+ const View::Slave& slave = _viewer->getSlave(info->getMainSlaveIndex());
+#if SG_OSG_VERSION_LESS_THAN(3,0,0)
+ // refreshes camera viewports (for now)
+ info->updateCameras();
+#endif
+ Matrix viewMatrix;
+ if (info->flags & GUI) {
+ viewMatrix = osg::Matrix(); // identifty transform on the GUI camera
+ } else if ((info->flags & VIEW_ABSOLUTE) != 0)
+ viewMatrix = slave._viewOffset;
+ else
+ viewMatrix = masterView * slave._viewOffset;
+ camera->setViewMatrix(viewMatrix);
+ Matrix projectionMatrix;
+ if (info->flags & GUI) {
+ projectionMatrix = osg::Matrix::ortho2D(0, info->width, 0, info->height);
+ } else if ((info->flags & PROJECTION_ABSOLUTE) != 0) {
+ if (info->flags & ENABLE_MASTER_ZOOM) {
+ if (info->relativeCameraParent < _cameras.size()) {
+ // template projection matrix and view matrix of the current camera
+ osg::Matrix P0 = slave._projectionOffset;
+ osg::Matrix R = viewMatrix;
+
+ // The already known projection and view matrix of the parent camera
+ const CameraInfo* parentInfo = _cameras[info->relativeCameraParent].get();
+ RenderStageInfo prsi = parentInfo->cameras.find(MAIN_CAMERA)->second;
+ osg::Matrix pP = prsi.camera->getProjectionMatrix();
+ osg::Matrix pR = prsi.camera->getViewMatrix();
+
+ // And the projection matrix derived from P0 so that the reference points match
+ projectionMatrix = relativeProjection(P0, R, info->thisReference,
+ pP, pR, info->parentReference);
+
+ } else {
+ // We want to zoom, so take the original matrix and apply the zoom to it.
+ projectionMatrix = slave._projectionOffset;
+ projectionMatrix.postMultScale(osg::Vec3d(masterZoomFactor, masterZoomFactor, 1));
+ }
+ } else {
+ projectionMatrix = slave._projectionOffset;
+ }
+ } else {
+ projectionMatrix = masterProj * slave._projectionOffset;
+ }
+
+ CameraMap::const_iterator ii = info->cameras.find(FAR_CAMERA);
+ if (ii == info->cameras.end() || !ii->second.camera.valid()) {
camera->setProjectionMatrix(projectionMatrix);
- camera->setCullMask(camera->getCullMask()
- | simgear::BACKGROUND_BIT);
- camera->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
- farCamera->setNodeMask(0);
} else {
- Matrix nearProj, farProj;
- makeNewProjMat(projectionMatrix, parentNear, _nearField,
- nearProj);
- makeNewProjMat(projectionMatrix, _nearField, parentFar,
- farProj);
- camera->setProjectionMatrix(nearProj);
- camera->setCullMask(camera->getCullMask()
- & ~simgear::BACKGROUND_BIT);
- camera->setClearMask(GL_DEPTH_BUFFER_BIT);
- farCamera->setProjectionMatrix(farProj);
- farCamera->setNodeMask(camera->getNodeMask());
+ Camera* farCamera = ii->second.camera;
+ farCamera->setViewMatrix(viewMatrix);
+ double left, right, bottom, top, parentNear, parentFar;
+ projectionMatrix.getFrustum(left, right, bottom, top,
+ parentNear, parentFar);
+ if ((info->flags & FIXED_NEAR_FAR) == 0) {
+ parentNear = _zNear;
+ parentFar = _zFar;
+ }
+ if (parentFar < _nearField || _nearField == 0.0f) {
+ camera->setProjectionMatrix(projectionMatrix);
+ camera->setCullMask(camera->getCullMask()
+ | simgear::BACKGROUND_BIT);
+ camera->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
+ farCamera->setNodeMask(0);
+ } else {
+ Matrix nearProj, farProj;
+ makeNewProjMat(projectionMatrix, parentNear, _nearField,
+ nearProj);
+ makeNewProjMat(projectionMatrix, _nearField, parentFar,
+ farProj);
+ camera->setProjectionMatrix(nearProj);
+ camera->setCullMask(camera->getCullMask()
+ & ~simgear::BACKGROUND_BIT);
+ camera->setClearMask(GL_DEPTH_BUFFER_BIT);
+ farCamera->setProjectionMatrix(farProj);
+ farCamera->setNodeMask(camera->getNodeMask());
+ }
+ }
+ } else {
+ bool viewDone = false;
+ Matrix viewMatrix;
+ bool projectionDone = false;
+ Matrix projectionMatrix;
+ for ( CameraMap::const_iterator ii = info->cameras.begin(); ii != info->cameras.end(); ++ii ) {
+ if ( ii->first == SHADOW_CAMERA ) {
+ globals->get_renderer()->updateShadowCamera(info, position);
+ continue;
+ }
+ if ( ii->second.fullscreen )
+ continue;
+
+ Camera* camera = ii->second.camera.get();
+ int slaveIndex = ii->second.slaveIndex;
+ const View::Slave& slave = _viewer->getSlave(slaveIndex);
+
+ if ( !viewDone ) {
+ if ((info->flags & VIEW_ABSOLUTE) != 0)
+ viewMatrix = slave._viewOffset;
+ else
+ viewMatrix = masterView * slave._viewOffset;
+ viewDone = true;
+ }
+
+ camera->setViewMatrix( viewMatrix );
+
+ if ( !projectionDone ) {
+ if ((info->flags & PROJECTION_ABSOLUTE) != 0) {
+ if (info->flags & ENABLE_MASTER_ZOOM) {
+ if (info->relativeCameraParent < _cameras.size()) {
+ // template projection matrix and view matrix of the current camera
+ osg::Matrix P0 = slave._projectionOffset;
+ osg::Matrix R = viewMatrix;
+
+ // The already known projection and view matrix of the parent camera
+ const CameraInfo* parentInfo = _cameras[info->relativeCameraParent].get();
+ RenderStageInfo prsi = parentInfo->cameras.find(MAIN_CAMERA)->second;
+ osg::Matrix pP = prsi.camera->getProjectionMatrix();
+ osg::Matrix pR = prsi.camera->getViewMatrix();
+
+ // And the projection matrix derived from P0 so that the reference points match
+ projectionMatrix = relativeProjection(P0, R, info->thisReference,
+ pP, pR, info->parentReference);
+
+ } else {
+ // We want to zoom, so take the original matrix and apply the zoom to it.
+ projectionMatrix = slave._projectionOffset;
+ projectionMatrix.postMultScale(osg::Vec3d(masterZoomFactor, masterZoomFactor, 1));
+ }
+ } else {
+ projectionMatrix = slave._projectionOffset;
+ }
+ } else {
+ projectionMatrix = masterProj * slave._projectionOffset;
+ }
+ projectionDone = true;
+ }
+
+ camera->setProjectionMatrix(projectionMatrix);
}
}
}
+
+ globals->get_renderer()->setPlanes( _zNear, _zFar );
}
void CameraGroup::setCameraParameters(float vfov, float aspectRatio)
1.0f / aspectRatio,
_zNear, _zFar);
}
+
+double CameraGroup::getMasterAspectRatio() const
+{
+ if (_cameras.empty())
+ return 0.0;
+
+ const CameraInfo* info = _cameras.front();
+
+ osg::Camera* camera = info->getCamera(MAIN_CAMERA);
+ if ( !camera )
+ camera = info->getCamera( GEOMETRY_CAMERA );
+ const osg::Viewport* viewport = camera->getViewport();
+ if (!viewport) {
+ return 0.0;
+ }
+
+ return static_cast<double>(viewport->height()) / viewport->width();
+}
+
}
namespace
namespace flightgear
{
+// Mostly copied from osg's osgViewer/View.cpp
+
+static osg::Geometry* createPanoramicSphericalDisplayDistortionMesh(
+ const Vec3& origin, const Vec3& widthVector, const Vec3& heightVector,
+ double sphere_radius, double collar_radius,
+ Image* intensityMap = 0, const Matrix& projectorMatrix = Matrix())
+{
+ osg::Vec3d center(0.0,0.0,0.0);
+ osg::Vec3d eye(0.0,0.0,0.0);
+
+ double distance = sqrt(sphere_radius*sphere_radius - collar_radius*collar_radius);
+ bool flip = false;
+ bool texcoord_flip = false;
+
+#if 0
+ osg::Vec3d projector = eye - osg::Vec3d(0.0,0.0, distance);
+
+ OSG_INFO<<"createPanoramicSphericalDisplayDistortionMesh : Projector position = "<<projector<<std::endl;
+ OSG_INFO<<"createPanoramicSphericalDisplayDistortionMesh : distance = "<<distance<<std::endl;
+#endif
+ // create the quad to visualize.
+ osg::Geometry* geometry = new osg::Geometry();
+
+ geometry->setSupportsDisplayList(false);
+
+ osg::Vec3 xAxis(widthVector);
+ float width = widthVector.length();
+ xAxis /= width;
+
+ osg::Vec3 yAxis(heightVector);
+ float height = heightVector.length();
+ yAxis /= height;
+
+ int noSteps = 160;
+
+ osg::Vec3Array* vertices = new osg::Vec3Array;
+ osg::Vec2Array* texcoords0 = new osg::Vec2Array;
+ osg::Vec2Array* texcoords1 = intensityMap==0 ? new osg::Vec2Array : 0;
+ osg::Vec4Array* colors = new osg::Vec4Array;
+
+#if 0
+ osg::Vec3 bottom = origin;
+ osg::Vec3 dx = xAxis*(width/((float)(noSteps-2)));
+ osg::Vec3 dy = yAxis*(height/((float)(noSteps-1)));
+#endif
+ osg::Vec3 top = origin + yAxis*height;
+
+ osg::Vec3 screenCenter = origin + widthVector*0.5f + heightVector*0.5f;
+ float screenRadius = heightVector.length() * 0.5f;
+
+ 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(int j=0;j<noSteps;++j)
+ {
+ 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;
+
+ 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(double(pos.x()*pos.x() + pos.y()*pos.y())), double(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(alpha/(2.0*osg::PI), 1.0f - beta/osg::PI);
+ 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 );
+ }
+
+
+ }
+ }
+
+
+ // pass the created vertex array to the points geometry object.
+ geometry->setVertexArray(vertices);
+
+ geometry->setColorArray(colors);
+ geometry->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
+
+ geometry->setTexCoordArray(0,texcoords0);
+ if (texcoords1) geometry->setTexCoordArray(1,texcoords1);
+
+ osg::DrawElementsUShort* elements = new osg::DrawElementsUShort(osg::PrimitiveSet::TRIANGLES);
+ geometry->addPrimitiveSet(elements);
+
+ for(int i=0;i<noSteps-1;++i)
+ {
+ for(int j=0;j<noSteps-1;++j)
+ {
+ 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);
+ }
+ }
+
+ return geometry;
+}
+
+void CameraGroup::buildDistortionCamera(const SGPropertyNode* psNode,
+ Camera* camera)
+{
+ const SGPropertyNode* texNode = psNode->getNode("texture");
+ if (!texNode) {
+ // error
+ return;
+ }
+ string texName = texNode->getStringValue();
+ TextureMap::iterator itr = _textureTargets.find(texName);
+ if (itr == _textureTargets.end()) {
+ // error
+ return;
+ }
+ Viewport* viewport = camera->getViewport();
+ float width = viewport->width();
+ float height = viewport->height();
+ TextureRectangle* texRect = itr->second.get();
+ double radius = psNode->getDoubleValue("radius", 1.0);
+ double collar = psNode->getDoubleValue("collar", 0.45);
+ Geode* geode = new Geode();
+ geode->addDrawable(createPanoramicSphericalDisplayDistortionMesh(
+ Vec3(0.0f,0.0f,0.0f), Vec3(width,0.0f,0.0f),
+ Vec3(0.0f,height,0.0f), radius, collar));
+
+ // new we need to add the texture to the mesh, we do so by creating a
+ // StateSet to contain the Texture StateAttribute.
+ StateSet* stateset = geode->getOrCreateStateSet();
+ stateset->setTextureAttributeAndModes(0, texRect, StateAttribute::ON);
+ stateset->setMode(GL_LIGHTING, StateAttribute::OFF);
+
+ TexMat* texmat = new TexMat;
+ texmat->setScaleByTextureRectangleSize(true);
+ stateset->setTextureAttributeAndModes(0, texmat, osg::StateAttribute::ON);
+#if 0
+ if (!applyIntensityMapAsColours && intensityMap)
+ {
+ stateset->setTextureAttributeAndModes(1, new osg::Texture2D(intensityMap), osg::StateAttribute::ON);
+ }
+#endif
+ // add subgraph to render
+ camera->addChild(geode);
+ camera->setClearMask(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
+ camera->setClearColor(osg::Vec4(0.0, 0.0, 0.0, 1.0));
+ camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
+ camera->setCullingMode(osg::CullSettings::NO_CULLING);
+ camera->setName("DistortionCorrectionCamera");
+}
+
CameraInfo* CameraGroup::buildCamera(SGPropertyNode* cameraNode)
{
WindowBuilder *wBuild = WindowBuilder::getWindowBuilder();
#endif
));
- osg::Matrix pOff;
osg::Matrix vOff;
const SGPropertyNode* viewNode = cameraNode->getNode("view");
if (viewNode) {
double heading = cameraNode->getDoubleValue("heading-deg", 0.0);
vOff.makeRotate(DegreesToRadians(heading), osg::Vec3(0, 1, 0));
}
- const SGPropertyNode* projectionNode = 0;
+ // Configuring the physical dimensions of a monitor
+ SGPropertyNode* viewportNode = cameraNode->getNode("viewport", true);
+ double physicalWidth = viewportNode->getDoubleValue("width", 1024);
+ double physicalHeight = viewportNode->getDoubleValue("height", 768);
+ double bezelHeightTop = 0;
+ double bezelHeightBottom = 0;
+ double bezelWidthLeft = 0;
+ double bezelWidthRight = 0;
+ const SGPropertyNode* physicalDimensionsNode = 0;
+ if ((physicalDimensionsNode = cameraNode->getNode("physical-dimensions")) != 0) {
+ physicalWidth = physicalDimensionsNode->getDoubleValue("width", physicalWidth);
+ physicalHeight = physicalDimensionsNode->getDoubleValue("height", physicalHeight);
+ const SGPropertyNode* bezelNode = 0;
+ if ((bezelNode = physicalDimensionsNode->getNode("bezel")) != 0) {
+ bezelHeightTop = bezelNode->getDoubleValue("top", bezelHeightTop);
+ bezelHeightBottom = bezelNode->getDoubleValue("bottom", bezelHeightBottom);
+ bezelWidthLeft = bezelNode->getDoubleValue("left", bezelWidthLeft);
+ bezelWidthRight = bezelNode->getDoubleValue("right", bezelWidthRight);
+ }
+ }
+ osg::Matrix pOff;
+ unsigned parentCameraIndex = ~0u;
+ osg::Vec2d parentReference[2];
+ osg::Vec2d thisReference[2];
+ SGPropertyNode* projectionNode = 0;
if ((projectionNode = cameraNode->getNode("perspective")) != 0) {
double fovy = projectionNode->getDoubleValue("fovy-deg", 55.0);
double aspectRatio = projectionNode->getDoubleValue("aspect-ratio",
1.0);
double zNear = projectionNode->getDoubleValue("near", 0.0);
- double zFar = projectionNode->getDoubleValue("far", 0.0);
+ double zFar = projectionNode->getDoubleValue("far", zNear + 20000);
double offsetX = projectionNode->getDoubleValue("offset-x", 0.0);
double offsetY = projectionNode->getDoubleValue("offset-y", 0.0);
double tan_fovy = tan(DegreesToRadians(fovy*0.5));
double bottom = -tan_fovy * zNear + offsetY;
pOff.makeFrustum(left, right, bottom, top, zNear, zFar);
cameraFlags |= PROJECTION_ABSOLUTE;
+ if (projectionNode->getBoolValue("fixed-near-far", true))
+ cameraFlags |= FIXED_NEAR_FAR;
} else if ((projectionNode = cameraNode->getNode("frustum")) != 0
|| (projectionNode = cameraNode->getNode("ortho")) != 0) {
double top = projectionNode->getDoubleValue("top", 0.0);
double left = projectionNode->getDoubleValue("left", 0.0);
double right = projectionNode->getDoubleValue("right", 0.0);
double zNear = projectionNode->getDoubleValue("near", 0.0);
- double zFar = projectionNode->getDoubleValue("far", 0.0);
+ double zFar = projectionNode->getDoubleValue("far", zNear + 20000);
if (cameraNode->getNode("frustum")) {
pOff.makeFrustum(left, right, bottom, top, zNear, zFar);
cameraFlags |= PROJECTION_ABSOLUTE;
pOff.makeOrtho(left, right, bottom, top, zNear, zFar);
cameraFlags |= (PROJECTION_ABSOLUTE | ORTHO);
}
+ if (projectionNode->getBoolValue("fixed-near-far", true))
+ cameraFlags |= FIXED_NEAR_FAR;
+ } else if ((projectionNode = cameraNode->getNode("master-perspective")) != 0) {
+ double zNear = projectionNode->getDoubleValue("eye-distance", 0.4*physicalWidth);
+ double xoff = projectionNode->getDoubleValue("x-offset", 0);
+ double yoff = projectionNode->getDoubleValue("y-offset", 0);
+ double left = -0.5*physicalWidth - xoff;
+ double right = 0.5*physicalWidth - xoff;
+ double bottom = -0.5*physicalHeight - yoff;
+ double top = 0.5*physicalHeight - yoff;
+ pOff.makeFrustum(left, right, bottom, top, zNear, zNear*1000);
+ cameraFlags |= PROJECTION_ABSOLUTE | ENABLE_MASTER_ZOOM;
+ } else if ((projectionNode = cameraNode->getNode("right-of-perspective"))
+ || (projectionNode = cameraNode->getNode("left-of-perspective"))
+ || (projectionNode = cameraNode->getNode("above-perspective"))
+ || (projectionNode = cameraNode->getNode("below-perspective"))
+ || (projectionNode = cameraNode->getNode("reference-points-perspective"))) {
+ std::string name = projectionNode->getStringValue("parent-camera");
+ for (unsigned i = 0; i < _cameras.size(); ++i) {
+ if (_cameras[i]->name != name)
+ continue;
+ parentCameraIndex = i;
+ }
+ if (_cameras.size() <= parentCameraIndex) {
+ SG_LOG(SG_VIEW, SG_ALERT, "CameraGroup::buildCamera: "
+ "failed to find parent camera for relative camera!");
+ return 0;
+ }
+ const CameraInfo* parentInfo = _cameras[parentCameraIndex].get();
+ if (projectionNode->getNameString() == "right-of-perspective") {
+ double tmp = (parentInfo->physicalWidth + 2*parentInfo->bezelWidthRight)/parentInfo->physicalWidth;
+ parentReference[0] = osg::Vec2d(tmp, -1);
+ parentReference[1] = osg::Vec2d(tmp, 1);
+ tmp = (physicalWidth + 2*bezelWidthLeft)/physicalWidth;
+ thisReference[0] = osg::Vec2d(-tmp, -1);
+ thisReference[1] = osg::Vec2d(-tmp, 1);
+ } else if (projectionNode->getNameString() == "left-of-perspective") {
+ double tmp = (parentInfo->physicalWidth + 2*parentInfo->bezelWidthLeft)/parentInfo->physicalWidth;
+ parentReference[0] = osg::Vec2d(-tmp, -1);
+ parentReference[1] = osg::Vec2d(-tmp, 1);
+ tmp = (physicalWidth + 2*bezelWidthRight)/physicalWidth;
+ thisReference[0] = osg::Vec2d(tmp, -1);
+ thisReference[1] = osg::Vec2d(tmp, 1);
+ } else if (projectionNode->getNameString() == "above-perspective") {
+ double tmp = (parentInfo->physicalHeight + 2*parentInfo->bezelHeightTop)/parentInfo->physicalHeight;
+ parentReference[0] = osg::Vec2d(-1, tmp);
+ parentReference[1] = osg::Vec2d(1, tmp);
+ tmp = (physicalHeight + 2*bezelHeightBottom)/physicalHeight;
+ thisReference[0] = osg::Vec2d(-1, -tmp);
+ thisReference[1] = osg::Vec2d(1, -tmp);
+ } else if (projectionNode->getNameString() == "below-perspective") {
+ double tmp = (parentInfo->physicalHeight + 2*parentInfo->bezelHeightBottom)/parentInfo->physicalHeight;
+ parentReference[0] = osg::Vec2d(-1, -tmp);
+ parentReference[1] = osg::Vec2d(1, -tmp);
+ tmp = (physicalHeight + 2*bezelHeightTop)/physicalHeight;
+ thisReference[0] = osg::Vec2d(-1, tmp);
+ thisReference[1] = osg::Vec2d(1, tmp);
+ } else if (projectionNode->getNameString() == "reference-points-perspective") {
+ SGPropertyNode* parentNode = projectionNode->getNode("parent", true);
+ SGPropertyNode* thisNode = projectionNode->getNode("this", true);
+ SGPropertyNode* pointNode;
+
+ pointNode = parentNode->getNode("point", 0, true);
+ parentReference[0][0] = pointNode->getDoubleValue("x", 0)*2/parentInfo->physicalWidth;
+ parentReference[0][1] = pointNode->getDoubleValue("y", 0)*2/parentInfo->physicalHeight;
+ pointNode = parentNode->getNode("point", 1, true);
+ parentReference[1][0] = pointNode->getDoubleValue("x", 0)*2/parentInfo->physicalWidth;
+ parentReference[1][1] = pointNode->getDoubleValue("y", 0)*2/parentInfo->physicalHeight;
+
+ pointNode = thisNode->getNode("point", 0, true);
+ thisReference[0][0] = pointNode->getDoubleValue("x", 0)*2/physicalWidth;
+ thisReference[0][1] = pointNode->getDoubleValue("y", 0)*2/physicalHeight;
+ pointNode = thisNode->getNode("point", 1, true);
+ thisReference[1][0] = pointNode->getDoubleValue("x", 0)*2/physicalWidth;
+ thisReference[1][1] = pointNode->getDoubleValue("y", 0)*2/physicalHeight;
+ }
+
+ pOff = osg::Matrix::perspective(45, physicalWidth/physicalHeight, 1, 20000);
+ cameraFlags |= PROJECTION_ABSOLUTE | ENABLE_MASTER_ZOOM;
} else {
// old style shear parameters
double shearx = cameraNode->getDoubleValue("shear-x", 0);
double sheary = cameraNode->getDoubleValue("shear-y", 0);
pOff.makeTranslate(-shearx, -sheary, 0);
}
- CameraInfo* info = addCamera(cameraFlags, camera, pOff, vOff);
+ const SGPropertyNode* textureNode = cameraNode->getNode("texture");
+ if (textureNode) {
+ string texName = textureNode->getStringValue("name");
+ int tex_width = textureNode->getIntValue("width");
+ int tex_height = textureNode->getIntValue("height");
+ TextureRectangle* texture = new TextureRectangle;
+
+ texture->setTextureSize(tex_width, tex_height);
+ texture->setInternalFormat(GL_RGB);
+ texture->setFilter(Texture::MIN_FILTER, Texture::LINEAR);
+ texture->setFilter(Texture::MAG_FILTER, Texture::LINEAR);
+ texture->setWrap(Texture::WRAP_S, Texture::CLAMP_TO_EDGE);
+ texture->setWrap(Texture::WRAP_T, Texture::CLAMP_TO_EDGE);
+ camera->setDrawBuffer(GL_FRONT);
+ camera->setReadBuffer(GL_FRONT);
+ camera->setRenderTargetImplementation(Camera::FRAME_BUFFER_OBJECT);
+ camera->attach(Camera::COLOR_BUFFER, texture);
+ _textureTargets[texName] = texture;
+ } else {
+ camera->setDrawBuffer(GL_BACK);
+ camera->setReadBuffer(GL_BACK);
+ }
+ const SGPropertyNode* psNode = cameraNode->getNode("panoramic-spherical");
+ bool useMasterSceneGraph = !psNode;
+ CameraInfo* info = globals->get_renderer()->buildRenderingPipeline(this, cameraFlags, camera, vOff, pOff,
+ window->gc.get(), useMasterSceneGraph);
+ info->name = cameraNode->getStringValue("name");
+ info->physicalWidth = physicalWidth;
+ info->physicalHeight = physicalHeight;
+ info->bezelHeightTop = bezelHeightTop;
+ info->bezelHeightBottom = bezelHeightBottom;
+ info->bezelWidthLeft = bezelWidthLeft;
+ info->bezelWidthRight = bezelWidthRight;
+ info->relativeCameraParent = parentCameraIndex;
+ info->parentReference[0] = parentReference[0];
+ info->parentReference[1] = parentReference[1];
+ info->thisReference[0] = thisReference[0];
+ info->thisReference[1] = thisReference[1];
// If a viewport isn't set on the camera, then it's hard to dig it
// out of the SceneView objects in the viewer, and the coordinates
// of mouse events are somewhat bizzare.
- SGPropertyNode* viewportNode = cameraNode->getNode("viewport", true);
buildViewport(info, viewportNode, window->gc->getTraits());
- updateCameras(info);
+ info->updateCameras();
+ // Distortion camera needs the viewport which is created by addCamera().
+ if (psNode) {
+ info->flags = info->flags | VIEW_ABSOLUTE;
+ buildDistortionCamera(psNode, camera);
+ }
return info;
}
const SGPropertyNode* windowNode = (cameraNode
? cameraNode->getNode("window")
: 0);
- if (!window) {
- if (windowNode) {
- // New style window declaration / definition
- window = wBuild->buildWindow(windowNode);
-
- } else {
- return 0;
- }
+ if (!window && windowNode) {
+ // New style window declaration / definition
+ window = wBuild->buildWindow(windowNode);
}
+
+ if (!window) { // buildWindow can fail
+ SG_LOG(SG_VIEW, SG_WARN, "CameraGroup::buildGUICamera: failed to build a window");
+ return NULL;
+ }
+
Camera* camera = new Camera;
+ camera->setName( "GUICamera" );
camera->setAllowEventFocus(false);
camera->setGraphicsContext(window->gc.get());
camera->setViewport(new Viewport);
- // XXX Camera needs to be drawn last; eventually the render order
- // should be assigned by a camera manager.
- camera->setRenderOrder(osg::Camera::POST_RENDER, 100);
- camera->setClearMask(0);
+ camera->setClearMask(0);
camera->setInheritanceMask(CullSettings::ALL_VARIABLES
& ~(CullSettings::COMPUTE_NEAR_FAR_MODE
| CullSettings::CULLING_MODE
camera->setCullingMode(osg::CullSettings::NO_CULLING);
camera->setProjectionResizePolicy(Camera::FIXED);
camera->setReferenceFrame(Transform::ABSOLUTE_RF);
- const int cameraFlags = GUI;
- CameraInfo* result = addCamera(cameraFlags, camera, Matrixd::identity(),
- Matrixd::identity(), false);
+ const int cameraFlags = GUI | DO_INTERSECTION_TEST;
+
+ CameraInfo* result = new CameraInfo(cameraFlags);
+ // The camera group will always update the camera
+ camera->setReferenceFrame(Transform::ABSOLUTE_RF);
+
+ getViewer()->addSlave(camera, Matrixd::identity(), Matrixd::identity(), false);
+ //installCullVisitor(camera);
+ int slaveIndex = getViewer()->getNumSlaves() - 1;
+ result->addCamera( MAIN_CAMERA, camera, slaveIndex );
+ camera->setRenderOrder(Camera::POST_RENDER, slaveIndex);
+ addCamera(result);
+
+ // XXX Camera needs to be drawn last; eventually the render order
+ // should be assigned by a camera manager.
+ camera->setRenderOrder(osg::Camera::POST_RENDER, 10000);
SGPropertyNode* viewportNode = cameraNode->getNode("viewport", true);
buildViewport(result, viewportNode, window->gc->getTraits());
// Disable statistics for the GUI camera.
- result->camera->setStats(0);
- updateCameras(result);
+ camera->setStats(0);
+ result->updateCameras();
return result;
}
CameraGroup* CameraGroup::buildCameraGroup(osgViewer::Viewer* viewer,
SGPropertyNode* gnode)
{
+ sgUserDataInit( globals->get_props() );
+
CameraGroup* cgroup = new CameraGroup(viewer);
for (int i = 0; i < gnode->nChildren(); ++i) {
SGPropertyNode* pNode = gnode->getChild(i);
CameraInfo* info = i->get();
if (info->flags & GUI)
continue;
- if (info->farCamera.valid() && info->farCamera->getNodeMask() != 0) {
- info->camera->setCullMask(nm & ~simgear::BACKGROUND_BIT);
- info->farCamera->setCullMask(nm);
+ osg::ref_ptr<osg::Camera> farCamera = info->getCamera(FAR_CAMERA);
+ osg::Camera* camera = info->getCamera( MAIN_CAMERA );
+ if (camera) {
+ if (farCamera.valid() && farCamera->getNodeMask() != 0) {
+ camera->setCullMask(nm & ~simgear::BACKGROUND_BIT);
+ camera->setCullMaskLeft(nm & ~simgear::BACKGROUND_BIT);
+ camera->setCullMaskRight(nm & ~simgear::BACKGROUND_BIT);
+ farCamera->setCullMask(nm);
+ farCamera->setCullMaskLeft(nm);
+ farCamera->setCullMaskRight(nm);
+ } else {
+ camera->setCullMask(nm);
+ camera->setCullMaskLeft(nm);
+ camera->setCullMaskRight(nm);
+ }
} else {
- info->camera->setCullMask(nm);
+ camera = info->getCamera( GEOMETRY_CAMERA );
+ if (camera == 0) continue;
+ camera->setCullMask( nm & ~simgear::MODELLIGHT_BIT );
}
}
}
{
for (CameraIterator i = camerasBegin(), e = camerasEnd(); i != e; ++i) {
CameraInfo *info = i->get();
- const Viewport* viewport = info->camera->getViewport();
+ Camera* camera = info->getCamera( MAIN_CAMERA );
+ if ( camera == 0 )
+ camera = info->getCamera( DISPLAY_CAMERA );
+ const Viewport* viewport = camera->getViewport();
info->x = viewport->x();
info->y = viewport->y();
info->width = viewport->width();
info->height = viewport->height();
+
+ info->resized( info->width, info->height );
}
}
+const CameraInfo* CameraGroup::getGUICamera() const
+{
+ ConstCameraIterator result
+ = std::find_if(camerasBegin(), camerasEnd(),
+ FlagTester<CameraInfo>(GUI));
+ if (result == camerasEnd()) {
+ return NULL;
+ }
+
+ return *result;
+}
+
Camera* getGUICamera(CameraGroup* cgroup)
{
- CameraGroup::CameraIterator end = cgroup->camerasEnd();
- CameraGroup::CameraIterator result
- = std::find_if(cgroup->camerasBegin(), end,
- FlagTester<CameraInfo>(CameraGroup::GUI));
- if (result != end)
- return (*result)->camera.get();
- else
- return 0;
+ const CameraInfo* info = cgroup->getGUICamera();
+ if (!info) {
+ return NULL;
+ }
+
+ return info->getCamera(MAIN_CAMERA);
}
+static bool computeCameraIntersection(const CameraInfo* cinfo,
+ const osgGA::GUIEventAdapter* ea,
+ osgUtil::LineSegmentIntersector::Intersections& intersections)
+{
+ using osgUtil::Intersector;
+ using osgUtil::LineSegmentIntersector;
+ double x, y;
+ eventToWindowCoords(ea, x, y);
+
+ if (!(cinfo->flags & CameraGroup::DO_INTERSECTION_TEST))
+ return false;
+
+ const Camera* camera = cinfo->getCamera(MAIN_CAMERA);
+ if ( !camera )
+ camera = cinfo->getCamera( GEOMETRY_CAMERA );
+ if (camera->getGraphicsContext() != ea->getGraphicsContext())
+ return false;
+
+ const Viewport* viewport = camera->getViewport();
+ double epsilon = 0.5;
+ if (!(x >= viewport->x() - epsilon
+ && x < viewport->x() + viewport->width() -1.0 + epsilon
+ && y >= viewport->y() - epsilon
+ && y < viewport->y() + viewport->height() -1.0 + epsilon))
+ return false;
+
+ Vec4d start(x, y, 0.0, 1.0);
+ Vec4d end(x, y, 1.0, 1.0);
+ Matrix windowMat = viewport->computeWindowMatrix();
+ Matrix startPtMat = Matrix::inverse(camera->getProjectionMatrix()
+ * windowMat);
+ Matrix endPtMat;
+ const Camera* farCamera = cinfo->getCamera( FAR_CAMERA );
+ if (!farCamera || farCamera->getNodeMask() == 0)
+ endPtMat = startPtMat;
+ else
+ endPtMat = Matrix::inverse(farCamera->getProjectionMatrix()
+ * windowMat);
+ start = start * startPtMat;
+ start /= start.w();
+ end = end * endPtMat;
+ end /= end.w();
+ ref_ptr<LineSegmentIntersector> picker
+ = new LineSegmentIntersector(Intersector::VIEW,
+ Vec3d(start.x(), start.y(), start.z()),
+ Vec3d(end.x(), end.y(), end.z()));
+ osgUtil::IntersectionVisitor iv(picker.get());
+ const_cast<Camera*>(camera)->accept(iv);
+ if (picker->containsIntersections()) {
+ intersections = picker->getIntersections();
+ return true;
+ }
+
+ return false;
+}
+
bool computeIntersections(const CameraGroup* cgroup,
const osgGA::GUIEventAdapter* ea,
osgUtil::LineSegmentIntersector::Intersections& intersections)
{
- using osgUtil::Intersector;
- using osgUtil::LineSegmentIntersector;
- double x, y;
- eventToWindowCoords(ea, x, y);
+ // test the GUI first
+ const CameraInfo* guiCamera = cgroup->getGUICamera();
+ if (guiCamera && computeCameraIntersection(guiCamera, ea, intersections))
+ return true;
+
// Find camera that contains event
for (CameraGroup::ConstCameraIterator iter = cgroup->camerasBegin(),
e = cgroup->camerasEnd();
iter != e;
++iter) {
const CameraInfo* cinfo = iter->get();
- if ((cinfo->flags & CameraGroup::DO_INTERSECTION_TEST) == 0)
+ if (cinfo == guiCamera)
continue;
- const Camera* camera = cinfo->camera.get();
- if (camera->getGraphicsContext() != ea->getGraphicsContext())
- continue;
- const Viewport* viewport = camera->getViewport();
- double epsilon = 0.5;
- if (!(x >= viewport->x() - epsilon
- && x < viewport->x() + viewport->width() -1.0 + epsilon
- && y >= viewport->y() - epsilon
- && y < viewport->y() + viewport->height() -1.0 + epsilon))
- continue;
- Vec4d start(x, y, 0.0, 1.0);
- Vec4d end(x, y, 1.0, 1.0);
- Matrix windowMat = viewport->computeWindowMatrix();
- Matrix startPtMat = Matrix::inverse(camera->getProjectionMatrix()
- * windowMat);
- Matrix endPtMat;
- if (!cinfo->farCamera.valid() || cinfo->farCamera->getNodeMask() == 0)
- endPtMat = startPtMat;
- else
- endPtMat = Matrix::inverse(cinfo->farCamera->getProjectionMatrix()
- * windowMat);
- start = start * startPtMat;
- start /= start.w();
- end = end * endPtMat;
- end /= end.w();
- ref_ptr<LineSegmentIntersector> picker
- = new LineSegmentIntersector(Intersector::VIEW,
- Vec3d(start.x(), start.y(), start.z()),
- Vec3d(end.x(), end.y(), end.z()));
- osgUtil::IntersectionVisitor iv(picker.get());
- const_cast<Camera*>(camera)->accept(iv);
- if (picker->containsIntersections()) {
- intersections = picker->getIntersections();
+
+ if (computeCameraIntersection(cinfo, ea, intersections))
return true;
- } else {
- break;
- }
}
+
intersections.clear();
return false;
}
= dynamic_cast<GraphicsWindow*>(guiCamera->getGraphicsContext());
if (!gw)
return;
- globals->get_renderer()->getEventHandler()->setMouseWarped();
+ globals->get_renderer()->getEventHandler()->setMouseWarped();
// Translate the warp request into the viewport of the GUI camera,
// send the request to the window, then transform the coordinates
// for the Viewer's event queue.
projects / flightgear.git / blobdiff