@brief Get the intersection between a ray and the primitive. @param r Ray to be tested against the primitive. The input ray is in world s

@brief Intersection test between the shape and a bounding box. The default implementation here is a fairly conservative one by returning true. To be

@brief Whether the spatial data structure is constructed. @return Whether the spatial data structure is constructed.

@brief Get the light source of the primitive if there is one. Most primitives doesn't have light attached to it. @return Light attached to

@brief Find material by id. Materials are packed in a specific order that matches with the ids in index buffer. @param matId Id of the material.

@brief Get current position. Ideally, IStreamBase might need to have this interface too. But it is not currently needed.

@brief Get number of primitives in this visual

@brief Get the number of primitives in this entity.

@brief Get camera coordinate according to a view direction in world space. It is used in light tracing or bi-directional path tracing algorithm. @para

@brief Get camera coordinate according to a view direction in world space. It is used in light tracing or bi-directional path tracing algorithm. @para

@brief Get the shape of the primitive. @return The shape of the primitive.

@brief Get the shape of the area light. @return It usually returns a valid shape for area light.

@brief Get the type of the shape attached to the primitive. @return Type of the attached shape.

@brief Get the type of the shape @return The type of the shape.

@brief Get the type of the shape @return The type of the shape.

@brief Get the type of the shape @return The type of the shape.

@brief Get the type of the shape @return The type of the shape.

@brief Get the type of the bxdf @return The specific type of the bxdf.

@brief Get material ID. @return Material ID that uniquely identifies the material.

@brief Get volume ray matching step size. @return Ray marching step size.

@brief Get volume ray marching max step count. @return Maximum steps to march during ray marching.

@brief Whether the material has sss @return Return true if there is sss node in the material.

whether the matrix have scale factor

whether there is scale factor in the matrix

@brief Whether the material has transparency @return Return true if there is transparency in the material.

@brief Whether the material is attached with a volume. @return Return true if the material is attached with a volume.

@brief Constructor. @param g Asymmetry parameter in Henyey-Greenstein phase function.

@brief Constructor. @param param Parameter to build the volume. @param material Material that spawns the medium.

@brief Constructor. @param param Parameter to build the volume. @param material Material that spawns the medium.

@brief Constructing from a file name. @param filename Name of the file to be streamed.

@brief Constructor. @param istream The IMemoryStream as input.

@brief Constructor.

check whether the transform is identity

@brief Default constructor.

return the inverse of the transform

@brief Whether the light is a delta light source. @return Whether the light is a delta light.

@brief Whether area light is a delta light. @return Always return 'False' for area light because it is not delta light.

@brief Whether the light is an infinite light source. @return Whether the light is an infinite light.

@brief Whether the light is an infinite light source. @return Whether the light is an infinite light.

@brief Whether the 2d texture is valid or not. @return True if the texture is valid.

@brief Whether the 2d texture is valid or not. @return True if the texture is valid.

@brief Whether the 3d texture is valid or not. @return True if the texture is valid.

Whether there is valid data loaded. @return True if data is valid, otherwise it will return false.

@brief Constructor taking a bounding box. @param bb Bounding box of the node.

@brief Constructor taken attenuation. @param param Parameter set.

Constructor from parameter set. @param param All parameters. @param weight Weight of this BRDF. @param doubleSided Whether the material

@brief Get the radiance light starting from the light source and ending at the intersection point. It simply returns zero for delta function, meanin

@brief Length of the vector. @return The length of the vector.

radiance along a specific ray direction

default constructor

@brief Constructor simply setup light_tracing_only parameter.

@brief Constructor @param p0 A point on one side of the line. @param p1 A point on the other side of the line. @param v0 V coordina

@brief Color from linear space to gamma space. @param value Linear space color. @return Gamma space color.

Load data from file

@brief Convert the direction from world space to local space WARNING!!! This function takes advantage of all its usage because the return value is m

@brief Convert the direction from world space to local space WARNING!!! This function takes advantage of all its usage because the return value is m

@brief Check the type of the bxdf, it shouldn't be overridden by derived classes. @param type The type to check. @return If the bxdf bel

@brief Constructor of material proxy taking a reference of its referred material. @param material Material to be referred.

@brief Constructor taking the material that spawns the medium. @param baseColor Base color of the volume. @param emission Emission coeffici

@brief Default constructor that does nothing.

@brief constructor taking in roughness

@brief Constructor @param reflectance Direction hemisphere reflection. @param f Fresnel term. @param d NDF term. @p