Class checkerboard_t

Inheritance Relationships

Base Type

Class Documentation

class checkerboard_t : public wt::texture::texture_t

Simple checkerboard pattern.

Public Functions

inline checkerboard_t(std::string id, std::shared_ptr<texture_t> col1, std::shared_ptr<texture_t> col2)
checkerboard_t(checkerboard_t&&) = default
virtual ~checkerboard_t() noexcept = default
inline virtual bool needs_interaction_footprint() const noexcept override

Returns TRUE for textures that make use of the surface interaction footprint data.

inline virtual vec2_t resolution() const noexcept override

Returns texture resolution represented via \( \frac{\text{texels}}{\vec{uv}} \). May return an approximation. Can be infinite, e.g., for analytic textures. Can be 1, for constant textures.

inline virtual std::shared_ptr<spectrum::spectrum_real_t> mean_spectrum() const noexcept override

Average spectrum of the texture. Returns nullptr when an average spectrum cannot be computed.

inline virtual std::optional<f_t> mean_value(wavenumber_t k) const noexcept override

Average value of the texture. Returns std::nullopt when an average value cannot be computed.

inline virtual vec4_t get_RGBA(const texture_query_t &query) const noexcept override

Samples the texture. Returns filtered RGBA data, without spectral upsampling. Ignores query.k. Only relevant for some textures.

inline virtual vec2_t f(const texture_query_t &query) const noexcept override

Samples the texture. Returns spectrally upsampled (to wavenumber query.k) result.

Returns:

Spectral luminance value and alpha (if any) pair.

virtual scene::element::info_t description() const override

Public Static Functions

static std::unique_ptr<texture_t> load(std::string id, scene::loader::loader_t *loader, const scene::loader::node_t &node, const wt::wt_context_t &context)