Returns the name of the class.
Reimplemented in vl::Actor, vl::ActorKdTree, vl::ActorTree, vl::ActorTreeAbstract, vl::ArrayAbstract, vl::Array< T_vector_type, T_scalar_type, T_gl_size, T_gl_type >, vl::BezierPatch, vl::BezierSurface, vl::Billboard, vl::BlitFramebuffer, vl::Buffer, vl::BufferedStream< Element_Type, Chunk_Size >, vl::Camera, vl::Clear, vl::ClipPlane, vl::Collection< T >, vl::CopyTexSubImage, vl::CopyTexSubImage1D, vl::CopyTexSubImage2D, vl::CopyTexSubImage3D, vl::DepthSortCallback, vl::DiskDirectory, vl::DiskFile, vl::DistanceLODEvaluator, vl::VertexMapper, vl::DoubleVertexRemover, vl::DrawArrays, vl::DrawCall, vl::DrawElements< Tgltype, arr_type >, vl::DrawPixels::Pixels, vl::DrawPixels, vl::DrawRangeElements< index_type, Tgltype, arr_type >, vl::EdgeExtractor, vl::EdgeRenderer, vl::EdgeUpdateCallback, vl::ShaderSequence, vl::Effect, vl::EnableSet, vl::FileSystem, vl::Glyph, vl::Font, vl::FontManager, vl::FBOAttachmentAbstract, vl::FBORenderbufferAttachment, vl::FBOColorBufferAttachment, vl::FBODepthBufferAttachment, vl::FBOStencilBufferAttachment, vl::FBODepthStencilBufferAttachment, vl::FBOTexture1DAttachment, vl::FBOTexture2DAttachment, vl::FBOTextureAttachment, vl::FBOTexture3DAttachment, vl::FBOTextureLayerAttachment, vl::FBORenderTarget, vl::Frustum, vl::Geometry, vl::GeometryLoadCallback, vl::GhostCameraManipulator, vl::GLBufferObject, vl::GLSLShader, vl::GLSLVertexShader, vl::GLSLFragmentShader, vl::GLSLGeometryShader, vl::GLSLProgram, vl::GZipCodec, vl::Image, vl::Light, vl::LoadWriterManager, vl::LODEvaluator, vl::Log, vl::StandardLog, vl::MemoryDirectory, vl::MemoryFile, vl::MorphingCallback, vl::MultiDrawElements< Tgltype, arr_type >, vl::OpenGLContext, vl::PixelLODEvaluator, vl::Plane, vl::PolygonSimplifier, vl::RayIntersection, vl::RayIntersectionGeometry, vl::RayIntersector, vl::ReadPixels, vl::Renderable, vl::Renderer, vl::RenderEventCallback, vl::Rendering, vl::RenderingTree, vl::RenderQueue, vl::RenderQueueSorter, vl::RenderQueueSorterByShader, vl::RenderQueueSorterByRenderable, vl::RenderQueueSorterBasic, vl::RenderQueueSorterStandard, vl::RenderQueueSorterOcclusion, vl::RenderQueueSorterAggressive, vl::RenderState, vl::TextureState, vl::RenderStateSet, vl::RenderTarget, vl::RenderToken, vl::ResourceDatabase, vl::ResourceLoadWriter, vl::SceneManager, vl::SceneManagerActorKdTree, vl::SceneManagerActorTree, vl::SceneManagerBVH< T >, vl::Scissor, vl::PixelTransfer, vl::Hint, vl::CullFace, vl::FrontFace, vl::DepthFunc, vl::DepthMask, vl::PolygonMode, vl::ShadeModel, vl::BlendFunc, vl::BlendEquation, vl::SampleCoverage, vl::AlphaFunc, vl::Material, vl::LightModel, vl::Fog, vl::PolygonOffset, vl::LogicOp, vl::DepthRange, vl::LineWidth, vl::PointSize, vl::PolygonStipple, vl::LineStipple, vl::PointParameter, vl::StencilFunc, vl::StencilOp, vl::StencilMask, vl::BlendColor, vl::ColorMask, vl::TextureMatrix, vl::TexEnv, vl::TexGen, vl::TextureUnit, vl::Shader, vl::ShaderNode, vl::Terrain, vl::Text, vl::TextStream, vl::Texture, vl::Time, vl::TrackballManipulator, vl::Transform, vl::UIEventListener, vl::Uniform, vl::UniformSet, vl::VertexAttribInfo, vl::Viewport, vl::VirtualDirectory, vl::VirtualFile, vl::LoadWriter3DS, vl::LoadWriterAC3D, vl::LoadWriterBMP, vl::LoadWriterDAT, vl::LoadWriterDDS, vl::LoadWriterDICOM, vl::LoadWriterJPG, vl::LoadWriterMD2, vl::LoadWriterOBJ, vl::ObjMaterial, vl::ObjMesh, vl::LoadWriterPLY, vl::LoadWriterPNG, vl::LoadWriterSTL, vl::LoadWriterTGA, vl::LoadWriterTIFF, vl::ZippedDirectory, vl::ZippedFileInfo, vl::ZippedFile, vlut::Applet, vlVG::SceneManagerVectorGraphics, vlVG::VectorGraphics, vlVolume::Volume, vlVolume::VolumeInfo, vlMolecule::Atom, vlMolecule::Bond, vlMolecule::Molecule, vl::BufferedStream< unsigned char, 128 *1024 >, vl::Collection< LoadCallback >, vl::Collection< WriteCallback >, vl::Collection< Shader >, vl::Collection< VolumeInfo >, vl::Collection< Actor >, vl::Collection< DrawCall >, vl::Collection< RenderEventCallback >, vl::Collection< VertexAttribInfo >, vl::Collection< TextureArray >, vl::Collection< ResourceLoadWriter >, vl::Collection< Pixels >, vl::Collection< VirtualDirectory >, vl::Collection< ActorEventCallback >, vl::Collection< SceneManager >, vl::Collection< VectorGraphics >, vl::Collection< RenderingAbstract >, vl::DrawElements< GL_UNSIGNED_BYTE, ArrayUByte >, vl::DrawElements< GL_UNSIGNED_INT, ArrayUInt >, vl::DrawElements< GL_UNSIGNED_SHORT, ArrayUShort >, vl::DrawRangeElements< GLushort, GL_UNSIGNED_SHORT, ArrayUShort >, vl::DrawRangeElements< GLubyte, GL_UNSIGNED_BYTE, ArrayUByte >, vl::DrawRangeElements< GLuint, GL_UNSIGNED_INT, ArrayUInt >, vl::MultiDrawElements< GL_UNSIGNED_BYTE, ArrayUByte >, vl::MultiDrawElements< GL_UNSIGNED_INT, ArrayUInt >, vl::MultiDrawElements< GL_UNSIGNED_SHORT, ArrayUShort >, vl::SceneManagerBVH< ActorKdTree >, and vl::SceneManagerBVH< ActorTree >.