#include "globals.hxx"
#include "renderer.hxx"
-#include "FGManipulator.hxx"
+#include "FGEventHandler.hxx"
#include "WindowBuilder.hxx"
#include "WindowSystemAdapter.hxx"
#include <simgear/props/props.hxx>
+#include <simgear/structure/OSGUtils.hxx>
+#include <simgear/scene/material/EffectCullVisitor.hxx>
+#include <simgear/scene/util/RenderConstants.hxx>
#include <algorithm>
#include <cstring>
#include <osgUtil/IntersectionVisitor>
#include <osgViewer/GraphicsWindow>
+#include <osgViewer/Renderer>
namespace flightgear
{
{
}
+}
+
+namespace
+{
+using namespace osg;
+
+// Given a projection matrix, return a new one with the same frustum
+// sides and new near / far values.
+
+void makeNewProjMat(Matrixd& oldProj, double znear,
+ double zfar, Matrixd& projection)
+{
+ projection = oldProj;
+ // Slightly inflate the near & far planes to avoid objects at the
+ // extremes being clipped out.
+ znear *= 0.999;
+ zfar *= 1.001;
+
+ // Clamp the projection matrix z values to the range (near, far)
+ double epsilon = 1.0e-6;
+ if (fabs(projection(0,3)) < epsilon &&
+ fabs(projection(1,3)) < epsilon &&
+ fabs(projection(2,3)) < epsilon) {
+ // Projection is Orthographic
+ epsilon = -1.0/(zfar - znear); // Used as a temp variable
+ projection(2,2) = 2.0*epsilon;
+ projection(3,2) = (zfar + znear)*epsilon;
+ } else {
+ // Projection is Perspective
+ double trans_near = (-znear*projection(2,2) + projection(3,2)) /
+ (-znear*projection(2,3) + projection(3,3));
+ double trans_far = (-zfar*projection(2,2) + projection(3,2)) /
+ (-zfar*projection(2,3) + projection(3,3));
+ double ratio = fabs(2.0/(trans_near - trans_far));
+ double center = -0.5*(trans_near + trans_far);
+
+ projection.postMult(osg::Matrixd(1.0, 0.0, 0.0, 0.0,
+ 0.0, 1.0, 0.0, 0.0,
+ 0.0, 0.0, ratio, 0.0,
+ 0.0, 0.0, center*ratio, 1.0));
+ }
+}
+
+void installCullVisitor(Camera* camera)
+{
+ 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);
+ }
+}
+}
+
+namespace flightgear
+{
+void updateCameras(const CameraInfo* info)
+{
+ 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);
+}
+
CameraInfo* CameraGroup::addCamera(unsigned flags, Camera* camera,
const Matrix& view,
const Matrix& projection,
bool useMasterSceneData)
{
- if ((flags & (VIEW_ABSOLUTE | PROJECTION_ABSOLUTE)) != 0)
- camera->setReferenceFrame(Transform::ABSOLUTE_RF);
- else
- camera->setReferenceFrame(Transform::RELATIVE_RF);
- CameraInfo* info = new CameraInfo(flags, camera);
- _cameras.push_back(info);
+ CameraInfo* info = new CameraInfo(flags);
+ // The camera group will always update the camera
+ camera->setReferenceFrame(Transform::ABSOLUTE_RF);
+
+ 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 CameraGroup::update(const osg::Vec3d& position,
const osg::Quat& orientation)
{
- FGManipulator *manipulator
- = dynamic_cast<FGManipulator*>(_viewer->getCameraManipulator());
- if (!manipulator)
- return;
- manipulator->setPosition(position);
- manipulator->setAttitude(orientation);
- const Matrix masterView(manipulator->getInverseMatrix());
+ const Matrix masterView(osg::Matrix::translate(-position)
+ * osg::Matrix::rotate(orientation.inverse()));
+ _viewer->getCamera()->setViewMatrix(masterView);
const Matrix& masterProj = _viewer->getCamera()->getProjectionMatrix();
for (CameraList::iterator i = _cameras.begin(); i != _cameras.end(); ++i) {
const CameraInfo* info = i->get();
- if ((info->flags & (VIEW_ABSOLUTE | PROJECTION_ABSOLUTE)) == 0) {
- // Camera has relative reference frame and is updated by
- // osg::View.
- continue;
- }
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)
- camera->setViewMatrix(slave._viewOffset);
+ viewMatrix = slave._viewOffset;
else
- camera->setViewMatrix(masterView * slave._viewOffset);
+ viewMatrix = masterView * slave._viewOffset;
+ camera->setViewMatrix(viewMatrix);
+ Matrix projectionMatrix;
if ((info->flags & PROJECTION_ABSOLUTE) != 0)
- camera->setProjectionMatrix(slave._projectionOffset);
+ projectionMatrix = slave._projectionOffset;
else
- camera->setViewMatrix(masterProj * slave._projectionOffset);
+ 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->setProjectionMatrix(projectionMatrix);
+ camera->setCullMask(camera->getCullMask()
+ | simgear::BACKGROUND_BIT);
+ camera->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_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());
+ }
+ }
}
}
void CameraGroup::setCameraParameters(float vfov, float aspectRatio)
{
- const float zNear = .1f;
- const float zFar = 120000.0f;
- _viewer->getCamera()->setProjectionMatrixAsPerspective(vfov,
- 1.0f / aspectRatio,
- zNear, zFar);
+ if (vfov != 0.0f && aspectRatio != 0.0f)
+ _viewer->getCamera()
+ ->setProjectionMatrixAsPerspective(vfov,
+ 1.0f / aspectRatio,
+ _zNear, _zFar);
}
}
namespace
{
-osg::Viewport* buildViewport(const SGPropertyNode* viewportNode)
+// A raw value for property nodes that references a class member via
+// an osg::ref_ptr.
+template<class C, class T>
+class RefMember : public SGRawValue<T>
+{
+public:
+ RefMember (C *obj, T C::*ptr)
+ : _obj(obj), _ptr(ptr) {}
+ virtual ~RefMember () {}
+ virtual T getValue () const
+ {
+ return _obj.get()->*_ptr;
+ }
+ virtual bool setValue (T value)
+ {
+ _obj.get()->*_ptr = value;
+ return true;
+ }
+ virtual SGRawValue<T> * clone () const
+ {
+ return new RefMember(_obj.get(), _ptr);
+ }
+private:
+ ref_ptr<C> _obj;
+ T C::* const _ptr;
+};
+
+template<typename C, typename T>
+RefMember<C, T> makeRefMember(C *obj, T C::*ptr)
+{
+ return RefMember<C, T>(obj, ptr);
+}
+
+template<typename C, typename T>
+void bindMemberToNode(SGPropertyNode* parent, const char* childName,
+ C* obj, T C::*ptr, T value)
{
- double x = viewportNode->getDoubleValue("x", 0.0);
- double y = viewportNode->getDoubleValue("y", 0.0);
- double width = viewportNode->getDoubleValue("width", 0.0);
- double height = viewportNode->getDoubleValue("height", 0.0);
- return new osg::Viewport(x, y, width, height);
+ SGPropertyNode* valNode = parent->getNode(childName);
+ RefMember<C, T> refMember = makeRefMember(obj, ptr);
+ if (!valNode) {
+ valNode = parent->getNode(childName, true);
+ valNode->tie(refMember, false);
+ setValue(valNode, value);
+ } else {
+ valNode->tie(refMember, true);
+ }
+}
+
+void buildViewport(flightgear::CameraInfo* info, SGPropertyNode* viewportNode,
+ const osg::GraphicsContext::Traits *traits)
+{
+ using namespace flightgear;
+ bindMemberToNode(viewportNode, "x", info, &CameraInfo::x, 0.0);
+ bindMemberToNode(viewportNode, "y", info, &CameraInfo::y, 0.0);
+ bindMemberToNode(viewportNode, "width", info, &CameraInfo::width,
+ static_cast<double>(traits->width));
+ bindMemberToNode(viewportNode, "height", info, &CameraInfo::height,
+ static_cast<double>(traits->height));
}
}
namespace flightgear
{
-CameraInfo* CameraGroup::buildCamera(const SGPropertyNode* cameraNode)
+
+CameraInfo* CameraGroup::buildCamera(SGPropertyNode* cameraNode)
{
WindowBuilder *wBuild = WindowBuilder::getWindowBuilder();
const SGPropertyNode* windowNode = cameraNode->getNode("window");
GraphicsWindow* window = 0;
- static int cameraNum = 0;
int cameraFlags = DO_INTERSECTION_TEST;
if (windowNode) {
// New style window declaration / definition
Camera* camera = new Camera;
camera->setAllowEventFocus(false);
camera->setGraphicsContext(window->gc.get());
- // 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.
- const SGPropertyNode* viewportNode = cameraNode->getNode("viewport");
- Viewport* viewport = 0;
- if (viewportNode) {
- viewport = buildViewport(viewportNode);
- } else {
- const GraphicsContext::Traits *traits = window->gc->getTraits();
- viewport = new Viewport(0, 0, traits->width, traits->height);
- }
- camera->setViewport(viewport);
+ camera->setViewport(new Viewport);
+ camera->setCullingMode(CullSettings::SMALL_FEATURE_CULLING
+ | CullSettings::VIEW_FRUSTUM_CULLING);
+ camera->setInheritanceMask(CullSettings::ALL_VARIABLES
+ & ~(CullSettings::CULL_MASK
+ | CullSettings::CULLING_MODE
+ | CullSettings::CLEAR_MASK));
+
osg::Matrix pOff;
osg::Matrix vOff;
const SGPropertyNode* viewNode = cameraNode->getNode("view");
double sheary = cameraNode->getDoubleValue("shear-y", 0);
pOff.makeTranslate(-shearx, -sheary, 0);
}
- return addCamera(cameraFlags, camera, pOff, vOff);
+ CameraInfo* info = addCamera(cameraFlags, camera, pOff, vOff);
+ // 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);
+ return info;
}
-CameraInfo* CameraGroup::buildGUICamera(const SGPropertyNode* cameraNode,
+CameraInfo* CameraGroup::buildGUICamera(SGPropertyNode* cameraNode,
GraphicsWindow* window)
{
WindowBuilder *wBuild = WindowBuilder::getWindowBuilder();
const SGPropertyNode* windowNode = (cameraNode
? cameraNode->getNode("window")
: 0);
- static int cameraNum = 0;
if (!window) {
if (windowNode) {
// New style window declaration / definition
Camera* camera = new Camera;
camera->setAllowEventFocus(false);
camera->setGraphicsContext(window->gc.get());
- const SGPropertyNode* viewportNode = (cameraNode
- ? cameraNode->getNode("viewport")
- : 0);
- Viewport* viewport = 0;
- if (viewportNode) {
- viewport = buildViewport(viewportNode);
- } else {
- const GraphicsContext::Traits *traits = window->gc->getTraits();
- viewport = new Viewport(0, 0, traits->width, traits->height);
- }
- camera->setViewport(viewport);
+ 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->setInheritanceMask(CullSettings::ALL_VARIABLES
& ~(CullSettings::COMPUTE_NEAR_FAR_MODE
- | CullSettings::CULLING_MODE));
+ | CullSettings::CULLING_MODE
+ | CullSettings::CLEAR_MASK));
camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
camera->setCullingMode(osg::CullSettings::NO_CULLING);
camera->setProjectionResizePolicy(Camera::FIXED);
camera->setReferenceFrame(Transform::ABSOLUTE_RF);
const int cameraFlags = GUI;
- return addCamera(cameraFlags, camera,
- Matrixd::identity(), Matrixd::identity(), false);
+ CameraInfo* result = addCamera(cameraFlags, camera, Matrixd::identity(),
+ Matrixd::identity(), false);
+ SGPropertyNode* viewportNode = cameraNode->getNode("viewport", true);
+ buildViewport(result, viewportNode, window->gc->getTraits());
+
+ // Disable statistics for the GUI camera.
+ result->camera->setStats(0);
+ updateCameras(result);
+ return result;
}
CameraGroup* CameraGroup::buildCameraGroup(osgViewer::Viewer* viewer,
- const SGPropertyNode* gnode)
+ SGPropertyNode* gnode)
{
CameraGroup* cgroup = new CameraGroup(viewer);
for (int i = 0; i < gnode->nChildren(); ++i) {
- const SGPropertyNode* pNode = gnode->getChild(i);
+ SGPropertyNode* pNode = gnode->getChild(i);
const char* name = pNode->getName();
if (!strcmp(name, "camera")) {
cgroup->buildCamera(pNode);
cgroup->buildGUICamera(pNode);
}
}
+ bindMemberToNode(gnode, "znear", cgroup, &CameraGroup::_zNear, .1f);
+ bindMemberToNode(gnode, "zfar", cgroup, &CameraGroup::_zFar, 120000.0f);
+ bindMemberToNode(gnode, "near-field", cgroup, &CameraGroup::_nearField,
+ 100.0f);
return cgroup;
}
+void CameraGroup::setCameraCullMasks(Node::NodeMask nm)
+{
+ for (CameraIterator i = camerasBegin(), e = camerasEnd(); i != e; ++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);
+ } else {
+ info->camera->setCullMask(nm);
+ }
+ }
+}
+
+void CameraGroup::resized()
+{
+ for (CameraIterator i = camerasBegin(), e = camerasEnd(); i != e; ++i) {
+ CameraInfo *info = i->get();
+ const Viewport* viewport = info->camera->getViewport();
+ info->x = viewport->x();
+ info->y = viewport->y();
+ info->width = viewport->width();
+ info->height = viewport->height();
+ }
+}
+
Camera* getGUICamera(CameraGroup* cgroup)
{
CameraGroup::CameraIterator end = cgroup->camerasEnd();
&& y >= viewport->y() - epsilon
&& y < viewport->y() + viewport->height() -1.0 + epsilon))
continue;
- LineSegmentIntersector::CoordinateFrame cf = Intersector::WINDOW;
+ 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(cf, x, y);
+ = 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()) {
= dynamic_cast<GraphicsWindow*>(guiCamera->getGraphicsContext());
if (!gw)
return;
- globals->get_renderer()->getManipulator()->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