[310] | 1 | #include "extViewer.h" |
---|
[329] | 2 | #include "distortionNG.h" |
---|
[310] | 3 | |
---|
[329] | 4 | #include <osg/PolygonOffset> |
---|
[313] | 5 | #include<osg/Texture2D> |
---|
| 6 | #include<osg/TextureRectangle> |
---|
| 7 | #include<osg/TexMat> |
---|
| 8 | #include<osg/ComputeBoundsVisitor> |
---|
[321] | 9 | #include<osg/Vec2> |
---|
[313] | 10 | |
---|
| 11 | #include<osgDB/ReadFile> |
---|
| 12 | |
---|
| 13 | #include <osgUtil/SmoothingVisitor> |
---|
| 14 | |
---|
[311] | 15 | extViewer::extViewer() : Viewer() |
---|
[310] | 16 | { |
---|
| 17 | } |
---|
| 18 | |
---|
[311] | 19 | extViewer::extViewer(osg::ArgumentParser& arguments) : Viewer(arguments) |
---|
[310] | 20 | { |
---|
[315] | 21 | |
---|
[310] | 22 | } |
---|
[311] | 23 | |
---|
| 24 | extViewer::extViewer(const osgViewer::Viewer& viewer, const osg::CopyOp& copyop) : Viewer(viewer, copyop) |
---|
| 25 | { |
---|
| 26 | |
---|
| 27 | } |
---|
| 28 | |
---|
| 29 | extViewer::~extViewer() |
---|
| 30 | { |
---|
| 31 | |
---|
| 32 | } |
---|
| 33 | |
---|
[332] | 34 | static void configureShaders( osg::StateSet* stateSet ) |
---|
[331] | 35 | { |
---|
[332] | 36 | // Create Shaders |
---|
| 37 | const std::string vertexSource = |
---|
| 38 | "uniform sampler2D sceneTexture;\n" |
---|
| 39 | "uniform sampler2D intensityMapTexture;\n" |
---|
| 40 | "uniform mat4 osg_ModelViewProjectionMatrix; \n" |
---|
| 41 | //"uniform vec3 ecLightDir; \n" |
---|
| 42 | " \n" |
---|
| 43 | "in vec4 osg_Vertex; \n" |
---|
| 44 | "in vec4 osg_Color; \n" |
---|
| 45 | " \n" |
---|
| 46 | "void main() \n" |
---|
| 47 | "{ \n" |
---|
| 48 | " gl_Position = osg_ModelViewProjectionMatrix * osg_Vertex; \n" |
---|
| 49 | " gl_FrontColor = osg_Color;\n" |
---|
| 50 | " \n" |
---|
| 51 | "} \n"; |
---|
| 52 | |
---|
| 53 | osg::Shader* vShader = new osg::Shader( osg::Shader::VERTEX, vertexSource ); |
---|
| 54 | vShader->setName("intensityMapVertShader"); |
---|
| 55 | |
---|
| 56 | const std::string fragmentSource = |
---|
| 57 | "uniform sampler2D sceneTexture;\n" |
---|
| 58 | "uniform sampler2D intensityMapTexture;\n" |
---|
| 59 | "varying vec2 texcoord;\n" |
---|
| 60 | "\n" |
---|
| 61 | "void main(void) \n" |
---|
| 62 | "{\n" |
---|
| 63 | " vec2 texcoord0 = vec2( gl_TexCoord[0] );\n" |
---|
| 64 | " vec2 texcoord1 = vec2( gl_TexCoord[1] );\n" |
---|
| 65 | " gl_FragColor = texture2D( sceneTexture, texcoord0) * texture2D( sceneTexture, texcoord0); \n" |
---|
| 66 | "}\n"; |
---|
| 67 | osg::Shader* fShader = new osg::Shader( osg::Shader::FRAGMENT, fragmentSource ); |
---|
| 68 | fShader->setName("intensityMapFragShader"); |
---|
| 69 | |
---|
| 70 | // Create Programm |
---|
| 71 | osg::Program* program = new osg::Program; |
---|
| 72 | program->addShader( vShader ); |
---|
| 73 | program->addShader( fShader ); |
---|
| 74 | program->setName("intensityMapFragProgramm"); |
---|
| 75 | stateSet->setAttribute( program ); |
---|
| 76 | |
---|
| 77 | osg::Uniform* sceneTextureSampler = new osg::Uniform("sceneTexture",0); |
---|
| 78 | stateSet->addUniform(sceneTextureSampler); |
---|
| 79 | osg::Uniform* intensityMapTextureSampler = new osg::Uniform("intensityMapTexture",1); |
---|
| 80 | stateSet->addUniform(intensityMapTextureSampler); |
---|
| 81 | |
---|
| 82 | |
---|
| 83 | /*osg::Vec3f lightDir( 0., 0.5, 1. ); |
---|
| 84 | lightDir.normalize(); |
---|
| 85 | stateSet->addUniform( new osg::Uniform( "ecLightDir", lightDir ) );*/ |
---|
| 86 | } |
---|
| 87 | |
---|
| 88 | static osg::Geometry* createMesh(const osg::Vec3& origin, const osg::Vec3& widthVector, const osg::Vec3& heightVector, unsigned int columns, unsigned int rows, osg::Image* intensityMap, bool applyIntensityMapAsColours, const osg::Matrix& projectorMatrix) |
---|
| 89 | { |
---|
[331] | 90 | // Create Quad to render on |
---|
| 91 | osg::ref_ptr<osg::Geometry> geom = new osg::Geometry; |
---|
| 92 | |
---|
| 93 | geom->setUseDisplayList( false ); |
---|
| 94 | |
---|
| 95 | osg::Vec3 xAxis(widthVector); |
---|
| 96 | float width = widthVector.length(); |
---|
| 97 | xAxis /= width; |
---|
| 98 | |
---|
| 99 | osg::Vec3 yAxis(heightVector); |
---|
| 100 | float height = heightVector.length(); |
---|
| 101 | yAxis /= height; |
---|
| 102 | |
---|
| 103 | osg::Vec3 dx = xAxis*(width/((float)(columns-1))); |
---|
| 104 | osg::Vec3 dy = yAxis*(height/((float)(rows-1))); |
---|
| 105 | |
---|
| 106 | |
---|
| 107 | // Create vertices and coordinates |
---|
| 108 | osg::Vec3Array* vertices = new osg::Vec3Array; |
---|
| 109 | osg::Vec2Array* texcoords0 = new osg::Vec2Array; |
---|
| 110 | osg::Vec2Array* texcoords1 = intensityMap==0 ? new osg::Vec2Array : 0; |
---|
| 111 | osg::Vec4Array* colors = new osg::Vec4Array; |
---|
| 112 | |
---|
| 113 | geom->getOrCreateStateSet()->setMode(GL_CULL_FACE, osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED); |
---|
| 114 | |
---|
| 115 | for ( unsigned int row=0; row<rows; row++ ) |
---|
| 116 | { |
---|
| 117 | for ( unsigned int col=0; col<columns; col++ ) |
---|
| 118 | { |
---|
| 119 | // Create coordinates of the mesh node (geometry). |
---|
| 120 | vertices->push_back( origin+dy*row+dx*col ); |
---|
| 121 | |
---|
| 122 | // Create tex coordinates |
---|
| 123 | osg::Vec2 texcoord = osg::Vec2((float)col/(float)(columns-1), (float)row/(float)(rows-1)); |
---|
| 124 | |
---|
| 125 | // Set Coordinates for RTT-Texture (scene rendering) |
---|
| 126 | texcoords0->push_back( texcoord ); |
---|
| 127 | |
---|
| 128 | // Set Color of the mesh node |
---|
[332] | 129 | if (intensityMap && applyIntensityMapAsColours) |
---|
[331] | 130 | { |
---|
| 131 | colors->push_back(intensityMap->getColor(texcoord)); |
---|
| 132 | } |
---|
| 133 | else |
---|
| 134 | { |
---|
| 135 | colors->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f)); |
---|
| 136 | } |
---|
| 137 | |
---|
| 138 | // Set coordinates for second texcoords array (if applyIntensityMapAsColours==true) |
---|
| 139 | if (texcoords1) texcoords1->push_back( texcoord ); |
---|
| 140 | } |
---|
| 141 | } |
---|
| 142 | |
---|
| 143 | // Pass the created vertex array to the points geometry object. |
---|
| 144 | geom->setUseVertexBufferObjects( true ); |
---|
| 145 | geom->setVertexArray(vertices); |
---|
| 146 | |
---|
| 147 | geom->setColorArray(colors); |
---|
| 148 | geom->setColorBinding(osg::Geometry::BIND_PER_VERTEX); |
---|
| 149 | |
---|
| 150 | geom->setTexCoordArray(0,texcoords0); |
---|
| 151 | if (texcoords1) geom->setTexCoordArray(1,texcoords1); |
---|
| 152 | |
---|
| 153 | // osg::DrawElementsUShort* elements = new osg::DrawElementsUShort(osg::PrimitiveSet::TRIANGLES); |
---|
| 154 | // geometry->addPrimitiveSet(elements); |
---|
| 155 | |
---|
| 156 | for ( unsigned int row=0; row<rows-1; row++ ) // each strip consists of two affected vertex rows, so we need only row-1 strips. |
---|
| 157 | { |
---|
| 158 | osg::ref_ptr<osg::DrawElementsUInt> de = new osg::DrawElementsUInt(GL_QUAD_STRIP, columns*2); // columns*2 = number of involved vertices for this strip. |
---|
| 159 | for ( unsigned int col=0; col<columns; col++ ) |
---|
| 160 | { |
---|
| 161 | (*de)[col*2 + 0] = row*columns + col; |
---|
| 162 | (*de)[col*2 + 1] = (row+1)*columns + col; |
---|
| 163 | } |
---|
| 164 | geom->addPrimitiveSet( de.get() ); |
---|
| 165 | } |
---|
| 166 | |
---|
[332] | 167 | if (intensityMap && !applyIntensityMapAsColours) |
---|
| 168 | { |
---|
| 169 | configureShaders( geom->getOrCreateStateSet() ); |
---|
| 170 | geom->setInitialBound( osg::BoundingBox(origin, origin+widthVector+heightVector) ); |
---|
| 171 | } |
---|
| 172 | |
---|
[331] | 173 | return geom.release(); |
---|
| 174 | } |
---|
| 175 | |
---|
[315] | 176 | void extViewer::setUpViewForManualDistortion(unsigned int screenNum, osg::Image* intensityMap, const osg::Matrixd& projectorMatrix) |
---|
[311] | 177 | { |
---|
[313] | 178 | OSG_INFO<<"View::setUpViewForManualDistortion(sn="<<screenNum<<", im="<<intensityMap<<")"<<std::endl; |
---|
| 179 | |
---|
[311] | 180 | osg::GraphicsContext::WindowingSystemInterface* wsi = osg::GraphicsContext::getWindowingSystemInterface(); |
---|
| 181 | if (!wsi) |
---|
| 182 | { |
---|
| 183 | OSG_NOTICE<<"Error, no WindowSystemInterface available, cannot create windows."<<std::endl; |
---|
| 184 | return; |
---|
| 185 | } |
---|
| 186 | |
---|
[313] | 187 | osg::GraphicsContext::ScreenIdentifier si; |
---|
[311] | 188 | si.readDISPLAY(); |
---|
| 189 | |
---|
| 190 | // displayNum has not been set so reset it to 0. |
---|
| 191 | if (si.displayNum<0) si.displayNum = 0; |
---|
| 192 | |
---|
| 193 | si.screenNum = screenNum; |
---|
| 194 | |
---|
| 195 | unsigned int width, height; |
---|
| 196 | wsi->getScreenResolution(si, width, height); |
---|
| 197 | |
---|
| 198 | osg::ref_ptr<osg::GraphicsContext::Traits> traits = new osg::GraphicsContext::Traits; |
---|
| 199 | traits->hostName = si.hostName; |
---|
| 200 | traits->displayNum = si.displayNum; |
---|
| 201 | traits->screenNum = si.screenNum; |
---|
| 202 | traits->x = 0; |
---|
| 203 | traits->y = 0; |
---|
| 204 | traits->width = width; |
---|
| 205 | traits->height = height; |
---|
| 206 | traits->windowDecoration = false; |
---|
| 207 | traits->doubleBuffer = true; |
---|
| 208 | traits->sharedContext = 0; |
---|
| 209 | |
---|
[331] | 210 | bool applyIntensityMapAsColours = false; |
---|
[311] | 211 | |
---|
[313] | 212 | osg::ref_ptr<osg::GraphicsContext> gc = osg::GraphicsContext::createGraphicsContext(traits.get()); |
---|
[311] | 213 | if (!gc) |
---|
| 214 | { |
---|
| 215 | OSG_NOTICE<<"GraphicsWindow has not been created successfully."<<std::endl; |
---|
| 216 | return; |
---|
| 217 | } |
---|
[328] | 218 | |
---|
| 219 | // Set up projection Matrix as it is done in View::setUpViewOnSingleScreen( |
---|
| 220 | double fovy, aspectRatio, zNear, zFar; |
---|
| 221 | _camera->getProjectionMatrixAsPerspective(fovy, aspectRatio, zNear, zFar); |
---|
[313] | 222 | |
---|
[328] | 223 | double newAspectRatio = double(traits->width) / double(traits->height); |
---|
| 224 | double aspectRatioChange = newAspectRatio / aspectRatio; |
---|
| 225 | if (aspectRatioChange != 1.0) |
---|
| 226 | { |
---|
| 227 | _camera->getProjectionMatrix() *= osg::Matrix::scale(1.0/aspectRatioChange,1.0,1.0); |
---|
| 228 | } |
---|
| 229 | |
---|
| 230 | |
---|
[313] | 231 | int tex_width = width; |
---|
| 232 | int tex_height = height; |
---|
| 233 | |
---|
| 234 | int camera_width = tex_width; |
---|
| 235 | int camera_height = tex_height; |
---|
| 236 | |
---|
| 237 | osg::TextureRectangle* texture = new osg::TextureRectangle; |
---|
| 238 | |
---|
| 239 | texture->setTextureSize(tex_width, tex_height); |
---|
| 240 | texture->setInternalFormat(GL_RGB); |
---|
| 241 | texture->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR); |
---|
| 242 | texture->setFilter(osg::Texture::MAG_FILTER,osg::Texture::LINEAR); |
---|
| 243 | texture->setWrap(osg::Texture::WRAP_S,osg::Texture::CLAMP_TO_EDGE); |
---|
| 244 | texture->setWrap(osg::Texture::WRAP_T,osg::Texture::CLAMP_TO_EDGE); |
---|
| 245 | |
---|
| 246 | |
---|
| 247 | #if 0 |
---|
| 248 | osg::Camera::RenderTargetImplementation renderTargetImplementation = osg::Camera::SEPERATE_WINDOW; |
---|
| 249 | GLenum buffer = GL_FRONT; |
---|
| 250 | #else |
---|
| 251 | osg::Camera::RenderTargetImplementation renderTargetImplementation = osg::Camera::FRAME_BUFFER_OBJECT; |
---|
| 252 | GLenum buffer = GL_FRONT; |
---|
| 253 | #endif |
---|
| 254 | |
---|
| 255 | // Scene camera |
---|
| 256 | { |
---|
| 257 | osg::ref_ptr<osg::Camera> camera = new osg::Camera; |
---|
[315] | 258 | camera->setName("Scene cam"); |
---|
[313] | 259 | camera->setGraphicsContext(gc.get()); |
---|
| 260 | camera->setViewport(new osg::Viewport(0,0,camera_width, camera_height)); |
---|
| 261 | camera->setDrawBuffer(buffer); |
---|
| 262 | camera->setReadBuffer(buffer); |
---|
| 263 | camera->setAllowEventFocus(false); |
---|
| 264 | // tell the camera to use OpenGL frame buffer object where supported. |
---|
| 265 | camera->setRenderTargetImplementation(renderTargetImplementation); |
---|
| 266 | |
---|
| 267 | // attach the texture and use it as the color buffer. |
---|
| 268 | camera->attach(osg::Camera::COLOR_BUFFER, texture); |
---|
| 269 | |
---|
| 270 | addSlave(camera.get(), osg::Matrixd(), osg::Matrixd()); |
---|
| 271 | } |
---|
| 272 | |
---|
| 273 | // distortion correction set up. |
---|
| 274 | { |
---|
| 275 | osg::Geode* geode = new osg::Geode(); |
---|
[331] | 276 | //geode->addDrawable(createParoramicSphericalDisplayDistortionMesh(osg::Vec3(0.0f,0.0f,0.0f), osg::Vec3(width,0.0f,0.0f), osg::Vec3(0.0f,height,0.0f), 1, 0.45, intensityMap, projectorMatrix)); |
---|
[332] | 277 | osg::Geometry* distortionMesh = createMesh(osg::Vec3(0.0f,0.0f,0.0f), osg::Vec3(width,0.0f,0.0f), osg::Vec3(0.0f,height,0.0f), 20, 20, intensityMap, applyIntensityMapAsColours, projectorMatrix); |
---|
[329] | 278 | geode->addDrawable(distortionMesh); |
---|
[313] | 279 | |
---|
[331] | 280 | // new we need to add the scene texture to the mesh, we do so by creating a |
---|
[313] | 281 | // StateSet to contain the Texture StateAttribute. |
---|
| 282 | osg::StateSet* stateset = geode->getOrCreateStateSet(); |
---|
| 283 | stateset->setTextureAttributeAndModes(0, texture,osg::StateAttribute::ON); |
---|
| 284 | stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF); |
---|
| 285 | |
---|
| 286 | osg::TexMat* texmat = new osg::TexMat; |
---|
| 287 | texmat->setScaleByTextureRectangleSize(true); |
---|
| 288 | stateset->setTextureAttributeAndModes(0, texmat, osg::StateAttribute::ON); |
---|
| 289 | |
---|
| 290 | if (!applyIntensityMapAsColours && intensityMap) |
---|
| 291 | { |
---|
| 292 | stateset->setTextureAttributeAndModes(1, new osg::Texture2D(intensityMap), osg::StateAttribute::ON); |
---|
| 293 | } |
---|
| 294 | |
---|
| 295 | osg::ref_ptr<osg::Camera> camera = new osg::Camera; |
---|
| 296 | camera->setGraphicsContext(gc.get()); |
---|
| 297 | camera->setClearMask(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT ); |
---|
| 298 | camera->setClearColor( osg::Vec4(0.0,0.0,0.0,1.0) ); |
---|
| 299 | camera->setViewport(new osg::Viewport(0, 0, width, height)); |
---|
| 300 | GLenum buffer = traits->doubleBuffer ? GL_BACK : GL_FRONT; |
---|
| 301 | camera->setDrawBuffer(buffer); |
---|
| 302 | camera->setReadBuffer(buffer); |
---|
| 303 | camera->setReferenceFrame(osg::Camera::ABSOLUTE_RF); |
---|
| 304 | camera->setAllowEventFocus(false); |
---|
| 305 | camera->setInheritanceMask(camera->getInheritanceMask() & ~osg::CullSettings::CLEAR_COLOR & ~osg::CullSettings::COMPUTE_NEAR_FAR_MODE); |
---|
| 306 | //camera->setComputeNearFarMode(osg::CullSettings::DO_NOT_COMPUTE_NEAR_FAR); |
---|
| 307 | |
---|
| 308 | camera->setProjectionMatrixAsOrtho2D(0,width,0,height); |
---|
| 309 | camera->setViewMatrix(osg::Matrix::identity()); |
---|
| 310 | |
---|
| 311 | // add subgraph to render |
---|
[329] | 312 | //camera->addChild(geode); |
---|
[313] | 313 | |
---|
[329] | 314 | // selector |
---|
| 315 | geode->getOrCreateStateSet()->setMode( GL_LIGHTING, osg::StateAttribute::OFF ); |
---|
| 316 | geode->getOrCreateStateSet()->setAttributeAndModes( new osg::PolygonOffset(1.0f, 1.0f) ); |
---|
| 317 | osg::ref_ptr<distortionHandler> selector = new distortionHandler( camera, distortionMesh ); |
---|
| 318 | osg::ref_ptr<osg::Group> root = new osg::Group; |
---|
| 319 | root->addChild(geode); |
---|
| 320 | root->addChild(selector->createVertexHighlighter()); |
---|
| 321 | addEventHandler( selector.get() ); |
---|
| 322 | camera->addChild(root); |
---|
| 323 | // Avoid that the highlighter is culled away |
---|
| 324 | osg::CullSettings::CullingMode mode = camera->getCullingMode(); |
---|
| 325 | camera->setCullingMode( mode & (~osg::CullSettings::SMALL_FEATURE_CULLING) ); |
---|
| 326 | |
---|
| 327 | |
---|
[320] | 328 | camera->setName("Dist Cam"); |
---|
[313] | 329 | |
---|
| 330 | addSlave(camera.get(), osg::Matrixd(), osg::Matrixd(), false); |
---|
| 331 | } |
---|
[325] | 332 | } |
---|