Cube.ixx File

Unit-cube mesh asset with positions, normals, UVs, and indexed triangles. More...

Included Headers

#include <span> #include <array> #include <helios.engine.rendering.mesh.types.MeshData> #include <helios.engine.rendering.mesh.types.PrimitiveType> #include <helios.engine.rendering.common.types.Vertex>

Namespaces Index

namespace	helios
namespace	engine
namespace	rendering
namespace	mesh
namespace	assets

Classes Index

struct	Cube
	Static cube mesh definition with per-face vertices. More...

Description

Unit-cube mesh asset with positions, normals, UVs, and indexed triangles.

File Listing

The file content with the documentation metadata removed is:

1

5module;

6

7#include <span>

8#include <array>

9

10export module helios.engine.rendering.mesh.assets:Cube;

11

12import helios.engine.rendering.common.types.Vertex;

13import helios.engine.rendering.mesh.types.PrimitiveType;

14import helios.engine.rendering.mesh.types.MeshData;

15

16using namespace helios::engine::rendering::common::types;

17using namespace helios::engine::rendering::mesh::types;

18export namespace helios::engine::rendering::mesh::assets {

19

27 struct Cube {

28

32 static constexpr std::array<Vertex, 24> vertices{{

33 // n (z = 1.0)

34 {{-1.0f, -1.0f, 1.0f}, { 0.0f, 0.0f, 1.0f}, {0.0f, 0.0f}}, // Bottom-left

35 {{ 1.0f, -1.0f, 1.0f}, { 0.0f, 0.0f, 1.0f}, {1.0f, 0.0f}}, // Bottom-right

36 {{ 1.0f, 1.0f, 1.0f}, { 0.0f, 0.0f, 1.0f}, {1.0f, 1.0f}}, // Top-right

37 {{-1.0f, 1.0f, 1.0f}, { 0.0f, 0.0f, 1.0f}, {0.0f, 1.0f}}, // Top-left

38

39 // f (z = -1.0)

40 {{-1.0f, -1.0f, -1.0f}, { 0.0f, 0.0f, -1.0f}, {1.0f, 0.0f}}, // Bottom-left

41 {{ 1.0f, -1.0f, -1.0f}, { 0.0f, 0.0f, -1.0f}, {0.0f, 0.0f}}, // Bottom-right

42 {{ 1.0f, 1.0f, -1.0f}, { 0.0f, 0.0f, -1.0f}, {0.0f, 1.0f}}, // Top-right

43 {{-1.0f, 1.0f, -1.0f}, { 0.0f, 0.0f, -1.0f}, {1.0f, 1.0f}}, // Top-left

44

45 // l (x = -1.0)

46 {{-1.0f, -1.0f, -1.0f}, {-1.0f, 0.0f, 0.0f}, {0.0f, 0.0f}}, // Bottom-left

47 {{-1.0f, -1.0f, 1.0f}, {-1.0f, 0.0f, 0.0f}, {1.0f, 0.0f}}, // Bottom-right

48 {{-1.0f, 1.0f, 1.0f}, {-1.0f, 0.0f, 0.0f}, {1.0f, 1.0f}}, // Top-right

49 {{-1.0f, 1.0f, -1.0f}, {-1.0f, 0.0f, 0.0f}, {0.0f, 1.0f}}, // Top-left

50

51 // r (x = 1.0)

52 {{ 1.0f, -1.0f, -1.0f}, { 1.0f, 0.0f, 0.0f}, {1.0f, 0.0f}}, // Bottom-left

53 {{ 1.0f, -1.0f, 1.0f}, { 1.0f, 0.0f, 0.0f}, {0.0f, 0.0f}}, // Bottom-right

54 {{ 1.0f, 1.0f, 1.0f}, { 1.0f, 0.0f, 0.0f}, {0.0f, 1.0f}}, // Top-right

55 {{ 1.0f, 1.0f, -1.0f}, { 1.0f, 0.0f, 0.0f}, {1.0f, 1.0f}}, // Top-left

56

57 // b (y = -1.0)

58 {{-1.0f, -1.0f, -1.0f}, { 0.0f, -1.0f, 0.0f}, {0.0f, 1.0f}}, // Bottom-left

59 {{ 1.0f, -1.0f, -1.0f}, { 0.0f, -1.0f, 0.0f}, {1.0f, 1.0f}}, // Bottom-right

60 {{ 1.0f, -1.0f, 1.0f}, { 0.0f, -1.0f, 0.0f}, {1.0f, 0.0f}}, // Top-right

61 {{-1.0f, -1.0f, 1.0f}, { 0.0f, -1.0f, 0.0f}, {0.0f, 0.0f}}, // Top-left

62

63 // t (y = 1.0)

64 {{-1.0f, 1.0f, -1.0f}, { 0.0f, 1.0f, 0.0f}, {0.0f, 0.0f}}, // Bottom-left

65 {{ 1.0f, 1.0f, -1.0f}, { 0.0f, 1.0f, 0.0f}, {1.0f, 0.0f}}, // Bottom-right

66 {{ 1.0f, 1.0f, 1.0f}, { 0.0f, 1.0f, 0.0f}, {1.0f, 1.0f}}, // Top-right

67 {{-1.0f, 1.0f, 1.0f}, { 0.0f, 1.0f, 0.0f}, {0.0f, 1.0f}} // Top-left

68 }};

69

70

74 static constexpr std::array<unsigned int, 36> indices = {

75 // n

76 0, 1, 2, 2, 3, 0,

77 // f

78 4, 5, 6, 6, 7, 4,

79 // l

80 8, 9, 10, 10, 11, 8,

81 // r

82 12, 13, 14, 14, 15, 12,

83 // b

84 16, 17, 18, 18, 19, 16,

85 // t

86 20, 21, 22, 22, 23, 20

87 };

88

92 static constexpr helios::engine::rendering::mesh::types::PrimitiveType primitiveType = mesh::types::PrimitiveType::Triangles;

93

99 static MeshData meshData() {

100 return MeshData{

101 std::span{vertices},

102 std::span{indices},

103 primitiveType

104 };

105

106 };

107

108 };

109

110}

---

Generated via doxygen2docusaurus 2.0.0 by Doxygen 1.9.8.