eagine::shapes::generator Struct Reference

Interface for shape loaders or generators. More...

#include <eagine/shapes/gen_base.hpp>

Public Member Functions
virtual auto	attrib_bits () noexcept -> vertex_attrib_bits=0
	Returns the set of vertex attributes supported by this generator.
auto	has (vertex_attrib_kind attrib) noexcept
	Tests if the specified attribute is supported by this generator.
virtual auto	enable (generator_capability cap, bool value=true) noexcept -> bool=0
	Enables or disables the specified generator capability.
auto	disable (generator_capability cap) noexcept
	Disables the specified generator capability.
virtual auto	is_enabled (generator_capability cap) noexcept -> bool=0
	Indicates if the specified generator capability is enabled.
auto	strips_allowed () noexcept -> bool
	Indicates if element strips are enabled.
auto	fans_allowed () noexcept -> bool
	Indicates if element fans are enabled.
auto	primitive_restart () noexcept -> bool
	Indicates if primitive restart is enabled.
virtual auto	vertex_count () -> span_size_t=0
	Returns the shaped vertex count.
virtual auto	attribute_variants (vertex_attrib_kind) -> span_size_t=0
	Returns the count of shape attribute variants.
virtual auto	variant_name (vertex_attrib_variant vav) -> string_view=0
	Returns the name of the specified attribute variant.
auto	find_variant (vertex_attrib_kind attrib, string_view name) -> vertex_attrib_variant
	Finds attribute variant by kind and name.
virtual auto	values_per_vertex (vertex_attrib_variant) -> span_size_t=0
	Returns the number of values per vertex for the specified variant.
auto	value_count (vertex_attrib_variant vav) -> span_size_t
	Returns the total number of values for the specified attribute variant.
virtual auto	attrib_type (vertex_attrib_variant vav) -> attrib_data_type=0
	Returns the attribute data type for the specified variant.
virtual auto	is_attrib_normalized (vertex_attrib_variant vav) -> bool=0
	Indicates if the specified variant attribute values should be normalized.
virtual void	attrib_values (vertex_attrib_variant, span< byte > dest)=0
	Fetches the vertex attribute data for the specified variant as bytes.
virtual void	attrib_values (vertex_attrib_variant, span< std::int16_t >)=0
	Fetches the vertex attribute data for the specified variant as integers.
virtual void	attrib_values (vertex_attrib_variant, span< std::int32_t >)=0
	Fetches the vertex attribute data for the specified variant as integers.
virtual void	attrib_values (vertex_attrib_variant, span< std::uint16_t >)=0
	Fetches the vertex attribute data for the specified variant as integers.
virtual void	attrib_values (vertex_attrib_variant, span< std::uint32_t >)=0
	Fetches the vertex attribute data for the specified variant as integers.
virtual void	attrib_values (vertex_attrib_variant, span< float > dest)=0
	Fetches the vertex attribute data for the specified variant as floats.
virtual auto	draw_variant_count () -> span_size_t=0
	Returns the count of possible shape draw variants.
auto	draw_variant (span_size_t index) -> drawing_variant
	Returns the identifier of the drawing variant at the specified index.
virtual auto	index_type (drawing_variant) -> index_data_type=0
	Returns the index data type for the specified draw variant.
auto	index_type () -> index_data_type
	Returns the index data type for the default draw variant.
virtual auto	index_count (drawing_variant) -> span_size_t=0
	Returns the index count for the specified drawing variant.
auto	index_count ()
	Returns the index count for the default drawing variant.
virtual void	indices (drawing_variant, span< std::uint8_t > dest)=0
	Fetches the index data for the specified drawing variant.
void	indices (span< std::uint8_t > dest)
	Fetches the index data for the default drawing variant.
virtual void	indices (drawing_variant, span< std::uint16_t > dest)=0
	Fetches the index data for the specified drawing variant.
void	indices (span< std::uint16_t > dest)
	Fetches the index data for the default drawing variant.
virtual void	indices (drawing_variant, span< std::uint32_t > dest)=0
	Fetches the index data for the specified drawing variant.
void	indices (span< std::uint32_t > dest)
	Fetches the index data for the default drawing variant.
virtual auto	operation_count (drawing_variant) -> span_size_t=0
	Returns the number of drawing instructions for the specified variant.
auto	operation_count ()
	Returns the number of drawing instructions for the default variant.
virtual void	instructions (drawing_variant, span< draw_operation > dest)=0
	Fetches the drawing operations for the specified drawing variant.
void	instructions (span< draw_operation > dest)
	Fetches the drawing operations for the default drawing variant.
virtual auto	bounding_sphere () -> math::sphere< float, true >
	Returns the bounding sphere for the generated shape.
virtual void	ray_intersections (drawing_variant, span< const math::line< float, true >> rays, span< optionally_valid< float >> intersections)
	Calculates the intersections of the shape geometry with a ray.
void	ray_intersections (span< const math::line< float, true >> rays, span< optionally_valid< float >> intersections)
	Calculates the intersections of the shape geometry with a ray.
auto	ray_intersection (drawing_variant var, const math::line< float, true > &ray) -> optionally_valid< float >
	Returns the parameter for the nearest intersection with a ray.
auto	ray_intersection (const math::line< float, true > &ray) -> optionally_valid< float >
	Returns the parameter for the nearest intersection with a ray.
Public Member Functions inherited from eagine::interface< generator >
constexpr	interface (const interface &)=delete
	Not copyable.
auto	operator= (interface &&)=delete
	Not move assignable.
auto	operator= (const interface &)=delete
	Not copy assignable.

Additional Inherited Members
Protected Member Functions inherited from eagine::interface< generator >
constexpr	interface () noexcept=default
	Default constructible by derived.
constexpr	interface (interface &&) noexcept=default
	Move constructible by derived.

Detailed Description

Interface for shape loaders or generators.

---

The documentation for this struct was generated from the following file:

• eagine/shapes/gen_base.hpp