This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 12345]

spica::ArgumentParser
spica::AtomicDouble
spica::AxisComparable
spica::Bounds2_< T >
spica::Bounds3_< T >
spica::Bounds3_< double >
spica::BSDF
spica::BSphere_< T >
spica::BSSRDF	BSSRDF Interface
spica::SeparableBSSRDF	SeparableBSSRDF class
spica::DiffuseBSSRDF	Diffuse BSSRDF class
spica::BVHAccel::BucketInfo
spica::BVHNode
spica::BVHPrimitiveInfo
spica::CacheData
spica::CacheNode
spica::CacheQuery
spica::CatmullRom
spica::CatmullRom2D
spica::BVHAccel::Children
spica::CObject
spica::Camera
spica::OrthographicCamera	Orthographic camera
spica::PerspectiveCamera	Perspective camera
spica::Film
spica::HDRFilm
spica::LDRFilm
spica::Filter
spica::BoxFilter
spica::GaussianFilter
spica::TentFilter
spica::Integrator	The integrator interface
spica::BDPTIntegrator	Bidirectional path tracing
spica::GDPTIntegrator
spica::PSSMLTIntegrator	Primary Sample Space Metropolis Light Transport
spica::SamplerIntegrator	The sampler integrator interface
spica::DirectLightingIntegrator
spica::HierarchicalIntegrator	Irradiance integrator for subsurface scattering objects
spica::HierarchicalIntegrator	Irradiance integrator for subsurface scattering objects
spica::IrradCacheIntegrator	Irradiance caching
spica::PathIntegrator	Unidirectional path tracing
spica::VolPathIntegrator
spica::PPMProbIntegrator	Progressive photon mapping: a probabilistic approach
spica::VolPhotoIntegrator	Volumetric photon mapping
spica::SPPMIntegrator	Stochastic progressive photon mapping
spica::Light	The base class for the lights
spica::AreaLight	Area light class
spica::Envmap	Environment mapping
spica::Medium
spica::GridDensityMedium
spica::HomogeneousMedium
spica::Primitive
spica::Aggregate
spica::Accelerator	Interface for intersection test accelerators
spica::BVHAccel	Binary BVH accelerator class
spica::GeometricPrimitive
spica::Sampler	Random sampler class
spica::Halton	Randomized Halton sampler for quasi Monte Carlo
spica::Independent	Independent random sampling with Mersenne Twister
spica::LowDiscrepancySampler	Low-discrepancy sampling with (0,2)-sequence
spica::PSSSampler	Management class for PSS sampling
spica::Shape	Abstract shape class
spica::Disk	Disk class
spica::Sphere	Sphere class
spica::Triangle
spica::SubsurfaceMaterial
spica::Dipole
spica::SurfaceMaterial
spica::Conductor
spica::Dielectric
spica::Diffuse
spica::Plastic
spica::RoughConductor
spica::RoughDielectric
spica::RoughPlastic
spica::Texture< T >	Texture interface
spica::ConstantTexture< T >
spica::Texture< Spectrum >
spica::BitmapTexture
spica::Checkerboard
spica::UVTexture
spica::BVHAccel::ComparePoint
spica::BVHAccel::CompareToBucket
spica::DiffusionReflectance
spica::DipoleDiffusionReflectance
spica::Distribution1D
spica::Distribution2D
exception
spica::RuntimeException
spica::Fresnel	The inteface for Fresnel reflections
spica::FresnelConductor	Fresnel conductor class
spica::FresnelDielectric	Fresnel dielectric class
spica::FresnelNoOp	Dammy Fresnel class which returns always one
spica::GDPTFilm
spica::HashGrid< T >
spica::HashGrid< spica::SPPMIntegrator::SPPMPixel * >
spica::Hierarchy
spica::Image	Image class
spica::Interaction
spica::EndpointInteraction
spica::MediumInteraction
spica::SurfaceInteraction
spica::IrradCacheIntegrator::IrradCache
spica::IrradiancePoint
spica::KdTree< Ty >
spica::KdTree< spica::Photon >
KillTimer
spica::KnnQuery
spica::LightSample
spica::Material
spica::Matrix4x4	Matrix of 4 x 4 size
spica::MediumInterface
spica::MicrofacetDistribution	The base class for microfacet distributions
spica::BeckmannDistribution	Beckmann microfacet distribution
spica::TrowbridgeReitzDistribution	Trowbridge and Reitz's microfacet distribution (GGX)
spica::MipMap
spica::BVHAccel::Children::Node
spica::Normal3_< T >
spica::Normal3_< double >
spica::OctreeNode
spica::PSSMLTIntegrator::PathSample	Path sample
spica::PhaseFunction
spica::HenyeyGreenstein
spica::Photon
spica::PluginManager
spica::Point2_< T >
spica::Point2_< double >
spica::Point2_< int >
spica::Point3_< T >
spica::Point3_< double >
spica::Quaternion	Quaternion
spica::Random	Random number generator with Mersenne twister
spica::RandomQueue< T >	Queue of random-order popping
spica::Ray	Ray class
spica::RenderParams
spica::RenderWorker	Render workder
spica::RGBSpectrum	RGB spectrum
spica::SceneParser
spica::ScopedAssignment< Type >
spica::ShapeGroup	Shape with materials
spica::BVHAccel::SIMDBVHNode
spica::SPPMIntegrator::SPPMPixel
spica::Stack< T >
spica::TextureMapping2D	Texture mapping interface
spica::PlanarMapping2D
spica::UVMapping2D
spica::Timer
spica::Tmo	Base class for tone mapping operators
spica::DragoTmo	Drago TMO
spica::DurandTMO	Durand TMO
spica::GammaTmo	Gamma correction
spica::ReinhardTmo	Reinhard TMO
spica::Transform	The transformation operator class
spica::Triplet_< T, Enable >
spica::Triplet_< T, typename std::enable_if< std::is_arithmetic< T >::value >::type >
spica::Uncopyable	Interface class which forbids copy and assignment
spica::Accelerator	Interface for intersection test accelerators
spica::BxDF	The base class of BxDFs
spica::FresnelSpecular	Fresnel specular refraction (Glass-like effect)
spica::LambertianReflection	Lambertian refrection
spica::LambertianTransmission	Lambertian transmission
spica::MicrofacetReflection	Microfacet reflaction
spica::MicrofacetTransmission	Microfacet transmission
spica::SeparableBSSRDFAdapter	Adapter for evaluating surface reflection part of BSSRDF
spica::SpecularReflection	Specular reflection (Metal-like effect)
spica::SpecularTransmission	Specular transmission
spica::Film
spica::Hierarchy::Octree
spica::Hierarchy::Octree
spica::Integrator	The integrator interface
spica::Light	The base class for the lights
spica::PhotonMap
spica::Sampler	Random sampler class
spica::Scene	Scene provides the interface for scene graph
spica::Vector2_< T >	Two-dimensional vector
spica::Vector2_< double >
spica::Vector3_< T >	Three-dimensional vector
spica::Vector3_< double >
spica::Vertex
spica::VisibilityTester
spica::SPPMIntegrator::SPPMPixel::VisiblePoint
spica::VolPhotoIntegrator::VPhotonMap
WorkerTask
WorkerTaskManager