eagine::shapes Namespace Reference

Shape generator and loader code is placed in this namespace. More...

Classes
class	centered_gen
	Generator modifier recalculating the shape center from vertex positions. More...
class	centered_unit_shape_generator_base
	Base class for shape generators re-calculating the center. More...
class	delegated_gen
	Base class for delegating shape generators based on other generators. More...
struct	draw_operation
	Draw operation parameters. More...
struct	generator
	Interface for shape loaders or generators. More...
class	generator_base
	Common base implementation of the shape generator interface. More...
class	mesh_edge
	Class storing information about an edge between two mesh faces. More...
class	mesh_triangle
	Class storing information about a mesh tirangular face. More...
class	occluded_gen
	Generator modifier calculating vertex occlusion weights. More...
class	reboxed_gen
	Generator modifier recalculating the vertex box coords values. More...
class	scaled_gen
	Generator modifier scaling the generated vertices by specifed amount. More...
class	to_patches_gen
	Generator modifier changing primitives in draw instructions to patches. More...
class	to_quads_gen
	Generator modifier transforming triangle strips to quads (lines with adjacency) More...
class	topology
	Class holding information about the topology of a generated shape. More...
class	translated_gen
	Generator modifier translating the generated vertices by specifed amount. More...
class	triangle_adjacency_gen
	Generator modifier adding triangle adjacency to drawing instructions. More...
class	unit_cube_gen
	Generator of centered cube shape with unit edge size. More...
class	unit_icosahedron_gen
	Generator of centered icosahedron shape with unit diameter. More...
class	unit_round_cube_gen
	Generator of centered, subdivided and rounded cube shape with unit radius. More...
class	unit_screen_gen
	Generator of centered flat 2d screen shape from (-1,-1,0) to (1,1,0) More...
class	unit_sphere_gen
	Generator of centered UV-sphere shape with unit diameter. More...
class	unit_torus_gen
	Generator of centered torus shape with unit diameter. More...
class	unit_twisted_torus_gen
	Generator of centered UV-sphere shape with unit diameter. More...
class	value_tree_loader
	Loader that fetches shape data from a value tree (JSON, YAML, etc.) More...
class	vertex_attrib_variant
	Class designating an vertex attribute variant in a shape generator. More...

Typedefs
using	drawing_variant = span_size_t
	Alias for shape drawing variant index type.
using	generator_capabilities = bitfield< generator_capability >
	Alias for generator_capability bitfield type.
using	vertex_attrib_bits = bitfield< vertex_attrib_kind >
	Alias for vertex_attrib_kind bitfield type.
template<std::size_t N>
using	vertex_attrib_variants = std::array< const vertex_attrib_variant, N >
	Array of several vertex attribute variant instances. More...

Enumerations
enum	primitive_type : std::uint8_t {   primitive_type::points, primitive_type::lines, primitive_type::line_strip, primitive_type::line_loop,   primitive_type::triangles, primitive_type::triangle_strip, primitive_type::triangle_fan, primitive_type::triangles_adjacency,   primitive_type::quads, primitive_type::tetrahedrons, primitive_type::patches }
	The shape primitive type enumeration. More...
enum	attrib_data_type {   attrib_data_type::none, attrib_data_type::ubyte, attrib_data_type::int_16, attrib_data_type::int_32,   attrib_data_type::uint_16, attrib_data_type::uint_32, attrib_data_type::float_ }
	Shape vertex attribute data type enumeration. More...
enum	index_data_type : std::uint8_t { index_data_type::none, index_data_type::unsigned_8, index_data_type::unsigned_16, index_data_type::unsigned_32 }
	Shape element index type enumeration. More...
enum	generator_capability { generator_capability::element_strips, generator_capability::element_fans, generator_capability::primitive_restart }
	Shape generator capability bit enumeration. More...
enum	vertex_attrib_kind : std::uint16_t {   vertex_attrib_kind::object_id, vertex_attrib_kind::position, vertex_attrib_kind::normal, vertex_attrib_kind::tangential,   vertex_attrib_kind::bitangential, vertex_attrib_kind::pivot, vertex_attrib_kind::pivot_pivot, vertex_attrib_kind::vertex_pivot,   vertex_attrib_kind::box_coord, vertex_attrib_kind::face_coord, vertex_attrib_kind::wrap_coord, vertex_attrib_kind::color,   vertex_attrib_kind::weight, vertex_attrib_kind::occlusion, vertex_attrib_kind::polygon_id, vertex_attrib_kind::material_id }
	Shape vertex attribute kind enumeration. More...

Functions
static auto	add_triangle_adjacency (std::shared_ptr< generator > gen, drawing_variant var) noexcept
	Constructs instances of triangle_adjacency_gen modifier.
static auto	add_triangle_adjacency (std::shared_ptr< generator > gen) noexcept
	Constructs instances of triangle_adjacency_gen modifier.
static auto	center (std::shared_ptr< generator > gen) noexcept
	Constructs instances of centered_gen modifier.
static auto	unit_cube (vertex_attrib_bits attr_bits)
	Constructs instances of unit_cube_gen. More...
static constexpr auto	operator| (generator_capability a, generator_capability b) noexcept -> generator_capabilities
	Bitwise-or operator for generator_capability enumerators.
static auto	unit_icosahedron (vertex_attrib_bits attr_bits)
	Constructs instances of unit_icosahedron_gen. More...
static auto	occlude (std::shared_ptr< generator > gen, span_size_t samples=8) noexcept
	Constructs instances of occluded_gen modifier.
static auto	rebox (std::shared_ptr< generator > gen) noexcept
	Constructs instances of reboxed_gen modifier.
static auto	unit_round_cube (vertex_attrib_bits attr_bits, int divisions)
	Constructs instances of unit_round_cube_gen. More...
static auto	scale (std::shared_ptr< generator > gen, std::array< float, 3 > s) noexcept
	Constructs instances of scaled_gen modifier.
static auto	unit_screen (vertex_attrib_bits attr_bits)
	Constructs instances of unit_screen_gen. More...
static auto	unit_sphere (vertex_attrib_bits attr_bits, valid_if_greater_than< int, 2 > rings, valid_if_greater_than< int, 3 > sections)
	Constructs instances of unit_sphere_gen. More...
static auto	unit_sphere (vertex_attrib_bits attr_bits)
	Constructs instances of unit_sphere_gen. More...
static auto	to_patches (std::shared_ptr< generator > gen) noexcept
	Constructs instances of to_patches_gen modifier.
static auto	to_quads (std::shared_ptr< generator > gen) noexcept
	Constructs instances of to_quads_gen modifier.
static auto	unit_torus (vertex_attrib_bits attr_bits, valid_if_greater_than< int, 4 > rings, valid_if_greater_than< int, 3 > sections, valid_if_ge0_lt1< float > radius_ratio)
	Constructs instances of unit_torus_gen.
static auto	unit_torus (vertex_attrib_bits attr_bits)
	Constructs instances of unit_torus_gen. More...
static auto	translate (std::shared_ptr< generator > gen, std::array< float, 3 > d) noexcept
	Constructs instances of translated_gen modifier.
static auto	unit_twisted_torus (vertex_attrib_bits attr_bits, int twist, valid_if_greater_than< int, 2 > rings, valid_if_greater_than< int, 3 > sections, valid_if_ge0_lt1< float > radius_ratio)
	Constructs instances of unit_twisted_torus_gen. More...
static auto	unit_twisted_torus (vertex_attrib_bits attr_bits)
	Constructs instances of unit_twisted_torus_gen. More...
static auto	from_value_tree (valtree::compound source, main_ctx_parent parent)
	Constructs instances of value_tree_loader. More...
static constexpr auto	all_vertex_attrib_bits () noexcept -> vertex_attrib_bits
	Returns vertex_attrib_bits value with all bits set.
static constexpr auto	operator| (vertex_attrib_kind a, vertex_attrib_kind b) noexcept -> vertex_attrib_bits
	Bitwise-or operator for vertex_attrib_kind bits.
static constexpr auto	operator/ (vertex_attrib_kind attrib, span_size_t variant_index) noexcept -> vertex_attrib_variant
	Operator for constructing of vertex_attrib_variant from kind and index.
static constexpr auto	operator+ (vertex_attrib_variant a) noexcept -> vertex_attrib_variants< 1 >
	Operator for creating of single element array of vertex attrib variant. More...
static constexpr auto	operator+ (vertex_attrib_variant a, vertex_attrib_variant b) noexcept -> vertex_attrib_variants< 2 >
	Operator for creating of two element array of vertex attrib variants. More...
template<std::size_t N>
static constexpr auto	operator+ (const vertex_attrib_variants< N > &a, vertex_attrib_variant b) noexcept -> vertex_attrib_variants< N+1 >
	Operator for concatenation of vertex attrib variants into an array. More...
template<std::size_t N>
static auto	get_attrib_bits (const vertex_attrib_variants< N > &vaals) noexcept -> vertex_attrib_bits
	Extracts vertex attribute kind bits from and vertex attribute variants array. More...
static auto	attrib_values_per_vertex (vertex_attrib_kind attr) noexcept -> span_size_t
	Gets the default number of values per vertex for an attribute kind.
static auto	attrib_values_per_vertex (vertex_attrib_variant vav) noexcept
	Gets the default number of values per vertex for an attribute variant.

Detailed Description

Shape generator and loader code is placed in this namespace.