// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
#include "CameraGroup.hxx"
#include "globals.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 <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 <osgUtil/IntersectionVisitor>
#include <osgViewer/GraphicsWindow>
+#include <osgViewer/Renderer>
namespace flightgear
{
void installCullVisitor(Camera* camera)
{
-#if 0 // Not yet
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);
}
-#endif
}
}
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,
Camera* farCamera = 0;
if ((flags & (GUI | ORTHO)) == 0) {
- farCamera = osg::clone(camera);
+ 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(osg::clone(camera->getViewport()));
- _viewer->addSlave(farCamera, view, projection, useMasterSceneData);
+ farCamera->setViewport(simgear::clone(camera->getViewport()));
+ farCamera->setDrawBuffer(camera->getDrawBuffer());
+ farCamera->setReadBuffer(camera->getReadBuffer());
+ farCamera->setRenderTargetImplementation(
+ camera->getRenderTargetImplementation());
+ const Camera::BufferAttachmentMap& bufferMap
+ = camera->getBufferAttachmentMap();
+ if (bufferMap.count(Camera::COLOR_BUFFER) != 0) {
+ farCamera->attach(
+ Camera::COLOR_BUFFER,
+ bufferMap.find(Camera::COLOR_BUFFER)->second._texture.get());
+ }
+ _viewer->addSlave(farCamera, projection, view, useMasterSceneData);
installCullVisitor(farCamera);
info->farCamera = farCamera;
info->farSlaveIndex = _viewer->getNumSlaves() - 1;
- farCamera->setRenderOrder(Camera::NESTED_RENDER, info->farSlaveIndex);
+ farCamera->setRenderOrder(Camera::POST_RENDER, info->farSlaveIndex);
camera->setCullMask(camera->getCullMask() & ~simgear::BACKGROUND_BIT);
+ camera->setClearMask(GL_DEPTH_BUFFER_BIT);
}
- camera->setClearMask(GL_DEPTH_BUFFER_BIT);
- _viewer->addSlave(camera, view, projection, useMasterSceneData);
+ _viewer->addSlave(camera, projection, view, useMasterSceneData);
installCullVisitor(camera);
info->camera = camera;
info->slaveIndex = _viewer->getNumSlaves() - 1;
- camera->setRenderOrder(Camera::NESTED_RENDER, info->slaveIndex);
+ camera->setRenderOrder(Camera::POST_RENDER, info->slaveIndex);
_cameras.push_back(info);
return info;
}
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();
- camera->getViewport()->setViewport(info->x, info->y, info->width,
- info->height);
Matrix viewMatrix;
if ((info->flags & VIEW_ABSOLUTE) != 0)
viewMatrix = slave._viewOffset;
camera->setProjectionMatrix(projectionMatrix);
} else {
Camera* farCamera = info->farCamera.get();
- farCamera->getViewport()->setViewport(info->x, info->y, info->width,
- info->height);
farCamera->setViewMatrix(viewMatrix);
double left, right, bottom, top, parentNear, parentFar;
projectionMatrix.getFrustum(left, right, bottom, top,
parentNear, parentFar);
- if (parentFar < 100.0) {
+ 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, 100.0, nearProj);
- makeNewProjMat(projectionMatrix, 100.0, parentFar, 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 flightgear
{
+// Mostly copied from osg's osgViewer/View.cpp
+
+static osg::Geometry* createParoramicSphericalDisplayDistortionMesh(
+ 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;
+
+ osg::Vec3d projector = eye - osg::Vec3d(0.0,0.0, distance);
+
+#if 0
+ OSG_INFO<<"createParoramicSphericalDisplayDistortionMesh : Projector position = "<<projector<<std::endl;
+ OSG_INFO<<"createParoramicSphericalDisplayDistortionMesh : 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;
+
+ osg::Vec3 bottom = origin;
+ osg::Vec3 dx = xAxis*(width/((float)(noSteps-2)));
+ osg::Vec3 dy = yAxis*(height/((float)(noSteps-1)));
+
+ 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(createParoramicSphericalDisplayDistortionMesh(
+ 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();
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
| CullSettings::VIEW_FRUSTUM_CULLING);
camera->setInheritanceMask(CullSettings::ALL_VARIABLES
& ~(CullSettings::CULL_MASK
- | CullSettings::CULLING_MODE));
+ | CullSettings::CULLING_MODE
+#if defined(HAVE_CULLSETTINGS_CLEAR_MASK)
+ | CullSettings::CLEAR_MASK
+#endif
+ ));
osg::Matrix pOff;
osg::Matrix vOff;
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 = addCamera(cameraFlags, camera, vOff, pOff,
+ useMasterSceneGraph);
// 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);
+ // 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);
- static int cameraNum = 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_GENERAL, SG_WARN, "CameraGroup::buildGUICamera: failed to build a window");
+ return NULL;
+ }
+
Camera* camera = new Camera;
camera->setAllowEventFocus(false);
camera->setGraphicsContext(window->gc.get());
camera->setClearMask(0);
camera->setInheritanceMask(CullSettings::ALL_VARIABLES
& ~(CullSettings::COMPUTE_NEAR_FAR_MODE
- | CullSettings::CULLING_MODE));
+ | CullSettings::CULLING_MODE
+#if defined(HAVE_CULLSETTINGS_CLEAR_MASK)
+ | CullSettings::CLEAR_MASK
+#endif
+ ));
camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
camera->setCullingMode(osg::CullSettings::NO_CULLING);
camera->setProjectionResizePolicy(Camera::FIXED);
// Disable statistics for the GUI camera.
result->camera->setStats(0);
+ updateCameras(result);
return result;
}
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) {
- if ((*i)->flags & GUI)
+ CameraInfo* info = i->get();
+ if (info->flags & GUI)
continue;
- (*i)->camera->setCullMask(nm & ~simgear::BACKGROUND_BIT);
- (*i)->farCamera->setCullMask(nm);
+ if (info->farCamera.valid() && info->farCamera->getNodeMask() != 0) {
+ info->camera->setCullMask(nm & ~simgear::BACKGROUND_BIT);
+ info->camera->setCullMaskLeft(nm & ~simgear::BACKGROUND_BIT);
+ info->camera->setCullMaskRight(nm & ~simgear::BACKGROUND_BIT);
+ info->farCamera->setCullMask(nm);
+ info->farCamera->setCullMaskLeft(nm);
+ info->farCamera->setCullMaskRight(nm);
+ } else {
+ info->camera->setCullMask(nm);
+ info->camera->setCullMaskLeft(nm);
+ info->camera->setCullMaskRight(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();
}
}
&& 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()) {
projects / flightgear.git / blobdiff