670 lines
24 KiB
C++
670 lines
24 KiB
C++
#include <osg/GLExtensions>
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#include <osg/Node>
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#include <osg/Geometry>
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#include <osg/Notify>
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#include <osg/MatrixTransform>
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#include <osg/Texture2D>
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#include <osg/Stencil>
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#include <osg/ColorMask>
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#include <osg/Depth>
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#include <osg/Billboard>
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#include <osg/Material>
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#include <osg/Projection>
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#include <osg/TextureCubeMap>
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#include <osg/io_utils>
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#include <osgGA/TrackballManipulator>
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#include <osgGA/FlightManipulator>
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#include <osgGA/DriveManipulator>
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#include <osgGA/KeySwitchMatrixManipulator>
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#include <osgGA/StateSetManipulator>
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#include <osgGA/AnimationPathManipulator>
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#include <osgGA/TerrainManipulator>
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#include <osgUtil/SmoothingVisitor>
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#include <osgDB/Registry>
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#include <osgDB/ReadFile>
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#include <osgViewer/Viewer>
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#include <osgViewer/StatsHandler>
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#include <osgViewer/HelpHandler>
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using namespace osg;
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osg::Node* createDistortionSubgraph(osg::Node* subgraph, const osg::Vec4& clearColour)
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{
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osg::Group* distortionNode = new osg::Group;
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unsigned int tex_width = 1024;
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unsigned int tex_height = 1024;
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osg::Texture2D* texture = new osg::Texture2D;
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texture->setTextureSize(tex_width, tex_height);
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texture->setInternalFormat(GL_RGBA);
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texture->setFilter(osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR);
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texture->setFilter(osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR);
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// set up the render to texture camera.
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{
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osg::Camera* camera = new osg::Camera;
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// set clear the color and depth buffer
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camera->setClearColor(clearColour);
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camera->setClearMask(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
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// just inherit the main cameras view
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camera->setReferenceFrame(osg::Transform::RELATIVE_RF);
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camera->setProjectionMatrix(osg::Matrixd::identity());
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camera->setViewMatrix(osg::Matrixd::identity());
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// set viewport
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camera->setViewport(0,0,tex_width,tex_height);
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// set the camera to render before the main camera.
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camera->setRenderOrder(osg::Camera::PRE_RENDER);
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// tell the camera to use OpenGL frame buffer object where supported.
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camera->setRenderTargetImplementation(osg::Camera::FRAME_BUFFER_OBJECT);
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// attach the texture and use it as the color buffer.
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camera->attach(osg::Camera::COLOR_BUFFER, texture);
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// add subgraph to render
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camera->addChild(subgraph);
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distortionNode->addChild(camera);
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}
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// set up the hud camera
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{
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// create the quad to visualize.
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osg::Geometry* polyGeom = new osg::Geometry();
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polyGeom->setSupportsDisplayList(false);
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osg::Vec3 origin(0.0f,0.0f,0.0f);
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osg::Vec3 xAxis(1.0f,0.0f,0.0f);
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osg::Vec3 yAxis(0.0f,1.0f,0.0f);
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osg::Vec3 zAxis(0.0f,0.0f,1.0f);
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float height = 1024.0f;
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float width = 1280.0f;
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int noSteps = 50;
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osg::Vec3Array* vertices = new osg::Vec3Array;
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osg::Vec2Array* texcoords = new osg::Vec2Array;
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osg::Vec4Array* colors = new osg::Vec4Array;
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osg::Vec3 bottom = origin;
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osg::Vec3 dx = xAxis*(width/((float)(noSteps-1)));
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osg::Vec3 dy = yAxis*(height/((float)(noSteps-1)));
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osg::Vec2 bottom_texcoord(0.0f,0.0f);
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osg::Vec2 dx_texcoord(1.0f/(float)(noSteps-1),0.0f);
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osg::Vec2 dy_texcoord(0.0f,1.0f/(float)(noSteps-1));
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osg::Vec3 cursor = bottom;
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osg::Vec2 texcoord = bottom_texcoord;
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int i,j;
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for(i=0;i<noSteps;++i)
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{
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osg::Vec3 cursor = bottom+dy*(float)i;
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osg::Vec2 texcoord = bottom_texcoord+dy_texcoord*(float)i;
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for(j=0;j<noSteps;++j)
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{
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vertices->push_back(cursor);
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texcoords->push_back(osg::Vec2((sin(texcoord.x()*osg::PI-osg::PI*0.5)+1.0f)*0.5f,(sin(texcoord.y()*osg::PI-osg::PI*0.5)+1.0f)*0.5f));
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colors->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
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cursor += dx;
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texcoord += dx_texcoord;
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}
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}
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// pass the created vertex array to the points geometry object.
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polyGeom->setVertexArray(vertices);
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polyGeom->setColorArray(colors);
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polyGeom->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
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polyGeom->setTexCoordArray(0,texcoords);
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for(i=0;i<noSteps-1;++i)
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{
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osg::DrawElementsUShort* elements = new osg::DrawElementsUShort(osg::PrimitiveSet::QUAD_STRIP);
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for(j=0;j<noSteps;++j)
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{
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elements->push_back(j+(i+1)*noSteps);
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elements->push_back(j+(i)*noSteps);
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}
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polyGeom->addPrimitiveSet(elements);
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}
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// new we need to add the texture to the Drawable, we do so by creating a
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// StateSet to contain the Texture StateAttribute.
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osg::StateSet* stateset = polyGeom->getOrCreateStateSet();
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stateset->setTextureAttributeAndModes(0, texture,osg::StateAttribute::ON);
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stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
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osg::Geode* geode = new osg::Geode();
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geode->addDrawable(polyGeom);
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// set up the camera to render the textured quad
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osg::Camera* camera = new osg::Camera;
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// just inherit the main cameras view
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camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
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camera->setViewMatrix(osg::Matrix::identity());
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camera->setProjectionMatrixAsOrtho2D(0,1280,0,1024);
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// set the camera to render before the main camera.
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camera->setRenderOrder(osg::Camera::NESTED_RENDER);
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// add subgraph to render
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camera->addChild(geode);
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distortionNode->addChild(camera);
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}
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return distortionNode;
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}
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void setDomeFaces(osgViewer::Viewer& viewer, osg::ArgumentParser& /*arguments*/)
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{
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osg::GraphicsContext::WindowingSystemInterface* wsi = osg::GraphicsContext::getWindowingSystemInterface();
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if (!wsi)
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{
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osg::notify(osg::NOTICE)<<"Error, no WindowSystemInterface available, cannot create windows."<<std::endl;
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return;
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}
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unsigned int width, height;
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wsi->getScreenResolution(osg::GraphicsContext::ScreenIdentifier(0), width, height);
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osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits;
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traits->x = 0;
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traits->y = 0;
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traits->width = width;
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traits->height = height;
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traits->windowDecoration = true;
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traits->doubleBuffer = true;
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traits->sharedContext = 0;
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osg::ref_ptr<osg::GraphicsContext> gc = osg::GraphicsContext::createGraphicsContext(traits.get());
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if (!gc)
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{
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osg::notify(osg::NOTICE)<<"GraphicsWindow has not been created successfully."<<std::endl;
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return;
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}
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int center_x = width/2;
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int center_y = height/2;
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int camera_width = 256;
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int camera_height = 256;
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// front face
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{
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osg::ref_ptr<osg::Camera> camera = new osg::Camera;
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camera->setGraphicsContext(gc.get());
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camera->setViewport(new osg::Viewport(center_x-camera_width/2, center_y, camera_width, camera_height));
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GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
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camera->setDrawBuffer(buffer);
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camera->setReadBuffer(buffer);
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viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd());
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}
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// top face
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{
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osg::ref_ptr<osg::Camera> camera = new osg::Camera;
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camera->setGraphicsContext(gc.get());
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camera->setViewport(new osg::Viewport(center_x-camera_width/2, center_y+camera_height, camera_width, camera_height));
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GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
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camera->setDrawBuffer(buffer);
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camera->setReadBuffer(buffer);
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viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate(osg::inDegrees(-90.0f), 1.0,0.0,0.0));
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}
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// left face
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{
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osg::ref_ptr<osg::Camera> camera = new osg::Camera;
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camera->setGraphicsContext(gc.get());
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camera->setViewport(new osg::Viewport(center_x-camera_width*3/2, center_y, camera_width, camera_height));
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GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
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camera->setDrawBuffer(buffer);
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camera->setReadBuffer(buffer);
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viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate(osg::inDegrees(-90.0f), 0.0,1.0,0.0));
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}
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// right face
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{
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osg::ref_ptr<osg::Camera> camera = new osg::Camera;
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camera->setGraphicsContext(gc.get());
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camera->setViewport(new osg::Viewport(center_x+camera_width/2, center_y, camera_width, camera_height));
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GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
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camera->setDrawBuffer(buffer);
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camera->setReadBuffer(buffer);
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viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate(osg::inDegrees(90.0f), 0.0,1.0,0.0));
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}
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// bottom face
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{
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osg::ref_ptr<osg::Camera> camera = new osg::Camera;
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camera->setGraphicsContext(gc.get());
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camera->setViewport(new osg::Viewport(center_x-camera_width/2, center_y-camera_height, camera_width, camera_height));
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GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
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camera->setDrawBuffer(buffer);
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camera->setReadBuffer(buffer);
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viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate(osg::inDegrees(90.0f), 1.0,0.0,0.0));
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}
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// back face
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{
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osg::ref_ptr<osg::Camera> camera = new osg::Camera;
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camera->setGraphicsContext(gc.get());
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camera->setViewport(new osg::Viewport(center_x-camera_width/2, center_y-2*camera_height, camera_width, camera_height));
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GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
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camera->setDrawBuffer(buffer);
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camera->setReadBuffer(buffer);
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viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate(osg::inDegrees(-180.0f), 1.0,0.0,0.0));
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}
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viewer.getCamera()->setProjectionMatrixAsPerspective(90.0f, 1.0, 1, 1000.0);
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viewer.assignSceneDataToCameras();
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}
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void setDomeCorrection(osgViewer::Viewer& viewer, osg::ArgumentParser& /*arguments*/)
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{
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osg::GraphicsContext::WindowingSystemInterface* wsi = osg::GraphicsContext::getWindowingSystemInterface();
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if (!wsi)
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{
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osg::notify(osg::NOTICE)<<"Error, no WindowSystemInterface available, cannot create windows."<<std::endl;
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return;
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}
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unsigned int width, height;
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wsi->getScreenResolution(osg::GraphicsContext::ScreenIdentifier(0), width, height);
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osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits;
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traits->x = 0;
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traits->y = 0;
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traits->width = width;
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traits->height = height;
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traits->windowDecoration = false;
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traits->doubleBuffer = true;
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traits->sharedContext = 0;
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osg::ref_ptr<osg::GraphicsContext> gc = osg::GraphicsContext::createGraphicsContext(traits.get());
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if (!gc)
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{
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osg::notify(osg::NOTICE)<<"GraphicsWindow has not been created successfully."<<std::endl;
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return;
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}
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gc->setClearColor(osg::Vec4f(0.2f,0.2f,0.6f,1.0f));
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gc->setClearMask(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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int center_x = width/2;
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int center_y = height/2;
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int camera_width = 512;
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int camera_height = 512;
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int tex_width = 512;
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int tex_height = 512;
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#define CUBE_MAP
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#ifdef CUBE_MAP
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osg::TextureCubeMap* texture = new osg::TextureCubeMap;
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#else
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osg::Texture2D* texture = new osg::Texture2D;
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#endif
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texture->setTextureSize(tex_width, tex_height);
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texture->setInternalFormat(GL_RGB);
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texture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE);
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texture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE);
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texture->setWrap(osg::Texture::WRAP_R, osg::Texture::CLAMP_TO_EDGE);
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texture->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR);
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texture->setFilter(osg::Texture::MAG_FILTER,osg::Texture::LINEAR);
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#if 0
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osg::Camera::RenderTargetImplementation renderTargetImplementation = osg::Camera::SEPERATE_WINDOW;
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GLenum buffer = GL_FRONT;
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#else
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osg::Camera::RenderTargetImplementation renderTargetImplementation = osg::Camera::FRAME_BUFFER_OBJECT;
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GLenum buffer = GL_FRONT;
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#endif
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// front face
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{
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osg::ref_ptr<osg::Camera> camera = new osg::Camera;
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camera->setName("Front face camera");
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camera->setGraphicsContext(gc.get());
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camera->setViewport(new osg::Viewport(0,0,camera_width, camera_height));
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camera->setDrawBuffer(buffer);
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camera->setReadBuffer(buffer);
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camera->setAllowEventFocus(false);
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// tell the camera to use OpenGL frame buffer object where supported.
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camera->setRenderTargetImplementation(renderTargetImplementation);
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// attach the texture and use it as the color buffer.
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#ifdef CUBE_MAP
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camera->attach(osg::Camera::COLOR_BUFFER, texture, 0, osg::TextureCubeMap::POSITIVE_Z);
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#else
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camera->attach(osg::Camera::COLOR_BUFFER, texture);
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#endif
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viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd());
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}
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// top face
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{
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osg::ref_ptr<osg::Camera> camera = new osg::Camera;
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camera->setName("Top face camera");
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camera->setGraphicsContext(gc.get());
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camera->setViewport(new osg::Viewport(0,0,camera_width, camera_height));
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GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT;
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camera->setDrawBuffer(buffer);
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camera->setReadBuffer(buffer);
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camera->setAllowEventFocus(false);
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// tell the camera to use OpenGL frame buffer object where supported.
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camera->setRenderTargetImplementation(renderTargetImplementation);
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// attach the texture and use it as the color buffer.
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#ifdef CUBE_MAP
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camera->attach(osg::Camera::COLOR_BUFFER, texture, 0, osg::TextureCubeMap::POSITIVE_Y);
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#else
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camera->attach(osg::Camera::COLOR_BUFFER, texture);
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#endif
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viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate(osg::inDegrees(-90.0f), 1.0,0.0,0.0));
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}
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// left face
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{
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osg::ref_ptr<osg::Camera> camera = new osg::Camera;
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camera->setName("Left face camera");
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camera->setGraphicsContext(gc.get());
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camera->setViewport(new osg::Viewport(0,0,camera_width, camera_height));
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camera->setDrawBuffer(buffer);
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camera->setReadBuffer(buffer);
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camera->setAllowEventFocus(false);
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// tell the camera to use OpenGL frame buffer object where supported.
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camera->setRenderTargetImplementation(renderTargetImplementation);
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// attach the texture and use it as the color buffer.
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#ifdef CUBE_MAP
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camera->attach(osg::Camera::COLOR_BUFFER, texture, 0, osg::TextureCubeMap::NEGATIVE_X);
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#else
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camera->attach(osg::Camera::COLOR_BUFFER, texture);
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#endif
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viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate(osg::inDegrees(-90.0f), 0.0,1.0,0.0));
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}
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// right face
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{
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osg::ref_ptr<osg::Camera> camera = new osg::Camera;
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camera->setName("Right face camera");
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camera->setGraphicsContext(gc.get());
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camera->setViewport(new osg::Viewport(0,0,camera_width, camera_height));
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camera->setDrawBuffer(buffer);
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camera->setReadBuffer(buffer);
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camera->setAllowEventFocus(false);
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// tell the camera to use OpenGL frame buffer object where supported.
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camera->setRenderTargetImplementation(renderTargetImplementation);
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// attach the texture and use it as the color buffer.
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#ifdef CUBE_MAP
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camera->attach(osg::Camera::COLOR_BUFFER, texture, 0, osg::TextureCubeMap::NEGATIVE_X);
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#else
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camera->attach(osg::Camera::COLOR_BUFFER, texture);
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#endif
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viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate(osg::inDegrees(90.0f), 0.0,1.0,0.0));
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}
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// bottom face
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{
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osg::ref_ptr<osg::Camera> camera = new osg::Camera;
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camera->setGraphicsContext(gc.get());
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camera->setName("Bottom face camera");
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camera->setViewport(new osg::Viewport(0,0,camera_width, camera_height));
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camera->setDrawBuffer(buffer);
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camera->setReadBuffer(buffer);
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camera->setAllowEventFocus(false);
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// tell the camera to use OpenGL frame buffer object where supported.
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camera->setRenderTargetImplementation(renderTargetImplementation);
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// attach the texture and use it as the color buffer.
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#ifdef CUBE_MAP
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camera->attach(osg::Camera::COLOR_BUFFER, texture, 0, osg::TextureCubeMap::NEGATIVE_Y);
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#else
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camera->attach(osg::Camera::COLOR_BUFFER, texture);
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#endif
|
|
|
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viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate(osg::inDegrees(90.0f), 1.0,0.0,0.0));
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}
|
|
|
|
// back face
|
|
{
|
|
osg::ref_ptr<osg::Camera> camera = new osg::Camera;
|
|
camera->setName("Back face camera");
|
|
camera->setGraphicsContext(gc.get());
|
|
camera->setViewport(new osg::Viewport(0,0,camera_width, camera_height));
|
|
camera->setDrawBuffer(buffer);
|
|
camera->setReadBuffer(buffer);
|
|
camera->setAllowEventFocus(false);
|
|
|
|
// tell the camera to use OpenGL frame buffer object where supported.
|
|
camera->setRenderTargetImplementation(renderTargetImplementation);
|
|
|
|
// attach the texture and use it as the color buffer.
|
|
#ifdef CUBE_MAP
|
|
camera->attach(osg::Camera::COLOR_BUFFER, texture, 0, osg::TextureCubeMap::NEGATIVE_Z);
|
|
#else
|
|
camera->attach(osg::Camera::COLOR_BUFFER, texture);
|
|
#endif
|
|
|
|
viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate(osg::inDegrees(-180.0f), 1.0,0.0,0.0));
|
|
}
|
|
|
|
viewer.getCamera()->setProjectionMatrixAsPerspective(90.0f, 1.0, 1, 1000.0);
|
|
|
|
|
|
viewer.assignSceneDataToCameras();
|
|
|
|
|
|
// distortion correction set up.
|
|
{
|
|
|
|
// create the quad to visualize.
|
|
osg::Geometry* polyGeom = new osg::Geometry();
|
|
|
|
polyGeom->setSupportsDisplayList(false);
|
|
|
|
osg::Vec3 origin(0.0f,0.0f,0.0f);
|
|
osg::Vec3 xAxis(1.0f,0.0f,0.0f);
|
|
osg::Vec3 yAxis(0.0f,1.0f,0.0f);
|
|
osg::Vec3 zAxis(0.0f,0.0f,1.0f);
|
|
float height = 1024.0f;
|
|
float width = 1280.0f;
|
|
int noSteps = 50;
|
|
|
|
osg::Vec3Array* vertices = new osg::Vec3Array;
|
|
osg::Vec3Array* texcoords = new osg::Vec3Array;
|
|
osg::Vec4Array* colors = new osg::Vec4Array;
|
|
|
|
osg::Vec3 bottom = origin;
|
|
osg::Vec3 dx = xAxis*(width/((float)(noSteps-1)));
|
|
osg::Vec3 dy = yAxis*(height/((float)(noSteps-1)));
|
|
|
|
osg::Vec3 bottom_texcoord(0.0f,0.0f,0.0f);
|
|
osg::Vec3 dx_texcoord(1.0f/(float)(noSteps-1),0.0f,0.0f);
|
|
osg::Vec3 dy_texcoord(0.0f,1.0f/(float)(noSteps-1),0.0f);
|
|
|
|
osg::Vec3 cursor = bottom;
|
|
osg::Vec3 texcoord = bottom_texcoord;
|
|
int i,j;
|
|
for(i=0;i<noSteps;++i)
|
|
{
|
|
osg::Vec3 cursor = bottom+dy*(float)i;
|
|
osg::Vec3 texcoord = bottom_texcoord+dy_texcoord*(float)i;
|
|
for(j=0;j<noSteps;++j)
|
|
{
|
|
vertices->push_back(cursor);
|
|
texcoords->push_back(osg::Vec3((sin(texcoord.x()*osg::PI-osg::PI*0.5)+1.0f)*0.5f,(1.0-sin(texcoord.y()*osg::PI-osg::PI*0.5))*0.5f,1.0));
|
|
colors->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
|
|
|
|
cursor += dx;
|
|
texcoord += dx_texcoord;
|
|
}
|
|
}
|
|
|
|
// pass the created vertex array to the points geometry object.
|
|
polyGeom->setVertexArray(vertices);
|
|
|
|
polyGeom->setColorArray(colors);
|
|
polyGeom->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
|
|
|
|
polyGeom->setTexCoordArray(0,texcoords);
|
|
|
|
for(i=0;i<noSteps-1;++i)
|
|
{
|
|
osg::DrawElementsUShort* elements = new osg::DrawElementsUShort(osg::PrimitiveSet::QUAD_STRIP);
|
|
for(j=0;j<noSteps;++j)
|
|
{
|
|
elements->push_back(j+(i+1)*noSteps);
|
|
elements->push_back(j+(i)*noSteps);
|
|
}
|
|
polyGeom->addPrimitiveSet(elements);
|
|
}
|
|
|
|
|
|
// new we need to add the texture to the Drawable, we do so by creating a
|
|
// StateSet to contain the Texture StateAttribute.
|
|
osg::StateSet* stateset = polyGeom->getOrCreateStateSet();
|
|
stateset->setTextureAttributeAndModes(0, texture,osg::StateAttribute::ON);
|
|
stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
|
|
|
|
osg::Geode* geode = new osg::Geode();
|
|
geode->addDrawable(polyGeom);
|
|
|
|
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->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->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR);
|
|
|
|
camera->setProjectionMatrixAsOrtho2D(0,1280,0,1024);
|
|
camera->setViewMatrix(osg::Matrix::identity());
|
|
|
|
// add subgraph to render
|
|
camera->addChild(geode);
|
|
|
|
camera->setName("DistortionCorrectionCamera");
|
|
|
|
viewer.addSlave(camera.get(), osg::Matrixd(), osg::Matrixd());
|
|
}
|
|
}
|
|
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
// use an ArgumentParser object to manage the program arguments.
|
|
osg::ArgumentParser arguments(&argc,argv);
|
|
|
|
// construct the viewer.
|
|
osgViewer::Viewer viewer;
|
|
|
|
// load the nodes from the commandline arguments.
|
|
osg::Node* loadedModel = osgDB::readNodeFiles(arguments);
|
|
if (!loadedModel)
|
|
{
|
|
osg::notify(osg::NOTICE)<<"Please specify a model filename on the command line."<<std::endl;
|
|
return 1;
|
|
}
|
|
|
|
if (arguments.read("--dome"))
|
|
{
|
|
viewer.setSceneData( loadedModel );
|
|
|
|
setDomeCorrection(viewer, arguments);
|
|
|
|
}
|
|
else if (arguments.read("--faces"))
|
|
{
|
|
viewer.setSceneData( loadedModel );
|
|
|
|
setDomeFaces(viewer, arguments);
|
|
|
|
}
|
|
else
|
|
{
|
|
osg::Node* distortionNode = createDistortionSubgraph(loadedModel, viewer.getCamera()->getClearColor());
|
|
|
|
// add model to the viewer.
|
|
viewer.setSceneData( distortionNode );
|
|
}
|
|
|
|
// 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() );
|
|
}
|
|
|
|
viewer.setThreadingModel(osgViewer::Viewer::SingleThreaded);
|
|
|
|
// add the state manipulator
|
|
viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
|
|
|
|
// add the stats handler
|
|
viewer.addEventHandler(new osgViewer::StatsHandler);
|
|
|
|
return viewer.run();
|
|
}
|
|
;
|