README
T
Mesh3D
- ::boundsMesh3D::bounds
- ::boxMesh3D::box
- ::cubeMesh3D::cube
- ::from_objMesh3D::from_obj
- ::newMesh3D::new
- ::new_with_formatMesh3D::new_with_format
- ::planeMesh3D::plane
- ::sphereMesh3D::sphere
- ::triangle_countMesh3D::triangle_count
- ::vertex_countMesh3D::vertex_count
T
MeshBounds3D
T
VertexAttribute
- ::sizeVertexAttribute::size
T
VertexFormat
- ::hasVertexFormat::has
- ::offset_ofVertexFormat::offset_of
- ::skinned_3dVertexFormat::skinned_3d
- ::standard_3dVertexFormat::standard_3d
- ::strideVertexFormat::stride
V
push_quad
V
push_vertex
V
vertex3d_stride

mesh3d

Mesh / vertex-format primitives for 3D rendering (extracted from kagura)

moon add mizchi/mesh3d@0.2.0

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Author

mizchi

Version

0.2.0

License

Apache-2.0

Repository

github.com/mizchi/kagura

Last updated

2 months ago

Downloads

190

README

#
Mesh3D

source

pub struct Mesh3D {
  vertex_data : Array[Double]
  indices : Array[Int]
  bounds : MeshBounds3D
  format : VertexFormat
} derive(@moonbitlang/core/debug.Debug
Debug)

impl Show for Mesh3D

#
Mesh3D::bounds

source

fn Mesh3D::bounds(self : Mesh3D) -> MeshBounds3D

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Mesh3D::box

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fn Mesh3D::box(width : Double, height : Double, depth : Double) -> Mesh3D

Box mesh with given width (X), height (Y), depth (Z), bottom at y=0. 5 faces (no bottom face): front, back, right, left, top.

#
Mesh3D::cube

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fn Mesh3D::cube(size : Double) -> Mesh3D

Unit cube centered at origin with side length size.

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Mesh3D::from_obj

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fn Mesh3D::from_obj(source : String) -> Mesh3D

Parse a Wavefront OBJ string into a Mesh3D. Supports v, vn, vt, f directives. Handles scientific notation, N-gon triangulation, negative indices, and flat normal generation.

#
Mesh3D::new

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fn Mesh3D::new(vertex_data : Array[Double], indices : Array[Int]) -> Mesh3D

Create a Mesh3D with standard_3d format (stride 8).

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Mesh3D::new_with_format

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fn Mesh3D::new_with_format(vertex_data : Array[Double], indices : Array[Int], format : VertexFormat) -> Mesh3D

Create a Mesh3D with an explicit vertex format.

#
Mesh3D::plane

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fn Mesh3D::plane(width : Double, depth : Double, subdivisions? : Int) -> Mesh3D

XZ plane centered at origin with given width and depth.

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Mesh3D::sphere

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fn Mesh3D::sphere(radius : Double, segments : Int, rings : Int) -> Mesh3D

UV sphere with given radius, number of horizontal segments, and vertical rings.

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Mesh3D::triangle_count

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fn Mesh3D::triangle_count(self : Mesh3D) -> Int

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Mesh3D::vertex_count

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fn Mesh3D::vertex_count(self : Mesh3D) -> Int

#
MeshBounds3D

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pub struct MeshBounds3D {
  min_x : Double
  min_y : Double
  min_z : Double
  max_x : Double
  max_y : Double
  max_z : Double
} derive(@moonbitlang/core/debug.Debug
Debug)

impl Show for MeshBounds3D

#
VertexAttribute

source

pub enum VertexAttribute {
  Position3
  Normal3
  TexCoord2
  Joints4
  Weights4
  Tangent4
  Color4
} derive(Eq, @moonbitlang/core/debug.Debug
Debug)

Vertex attribute types for 3D mesh data.

impl Show for VertexAttribute

#
VertexAttribute::size

source

fn VertexAttribute::size(self : VertexAttribute) -> Int

Number of float components for a vertex attribute.

#
VertexFormat

source

pub struct VertexFormat {
  attributes : Array[VertexAttribute]
} derive(@moonbitlang/core/debug.Debug
Debug)

Describes the layout of vertex data as an ordered list of attributes.

impl Show for VertexFormat

#
VertexFormat::has

source

fn VertexFormat::has(self : VertexFormat, target : VertexAttribute) -> Bool

Whether this format contains the given attribute.

#
VertexFormat::offset_of

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fn VertexFormat::offset_of(self : VertexFormat, target : VertexAttribute) -> Int

Byte offset of an attribute in the vertex layout. Returns -1 if the attribute is not present.

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VertexFormat::skinned_3d

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fn VertexFormat::skinned_3d() -> VertexFormat

Skinned 3D format: position(3) + normal(3) + uv(2) + joints(4) + weights(4) = stride 16.

#
VertexFormat::standard_3d

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fn VertexFormat::standard_3d() -> VertexFormat

Standard 3D format: position(3) + normal(3) + uv(2) = stride 8.

#
VertexFormat::stride

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fn VertexFormat::stride(self : VertexFormat) -> Int

Total number of floats per vertex.

#
push_quad

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fn push_quad(indices : Array[Int], base : Int) -> Unit

Push two triangles (a quad) from 4 consecutive vertices starting at base. Winding: base, base+1, base+2, base+2, base+3, base.

#
push_vertex

source

fn push_vertex(data : Array[Double], px : Double, py : Double, pz : Double, nx : Double, ny : Double, nz : Double, u : Double, v : Double) -> Unit

#
vertex3d_stride

source

let vertex3d_stride : Int

Source Files

Site source Report issue Packages Build queue Skills Statistics

mesh3d

#Mesh3D

#Mesh3D::bounds

#Mesh3D::box

#Mesh3D::cube

#Mesh3D::from_obj

#Mesh3D::new

#Mesh3D::new_with_format

#Mesh3D::plane

#Mesh3D::sphere

#Mesh3D::triangle_count

#Mesh3D::vertex_count

#MeshBounds3D

#VertexAttribute

#VertexAttribute::size

#VertexFormat

#VertexFormat::has

#VertexFormat::offset_of

#VertexFormat::skinned_3d

#VertexFormat::standard_3d

#VertexFormat::stride

#push_quad

#push_vertex

#vertex3d_stride

Source Files

#
Mesh3D

#
Mesh3D::bounds

#
Mesh3D::box

#
Mesh3D::cube

#
Mesh3D::from_obj

#
Mesh3D::new

#
Mesh3D::new_with_format

#
Mesh3D::plane

#
Mesh3D::sphere

#
Mesh3D::triangle_count

#
Mesh3D::vertex_count

#
MeshBounds3D

#
VertexAttribute

#
VertexAttribute::size

#
VertexFormat

#
VertexFormat::has

#
VertexFormat::offset_of

#
VertexFormat::skinned_3d

#
VertexFormat::standard_3d

#
VertexFormat::stride

#
push_quad

#
push_vertex

#
vertex3d_stride