Vkm::Engine::MeshAsset Struct Reference

CPU-side geometry: indexed triangle mesh plus a cached local-space AABB. More...

#include <mesh_asset.h>

Inheritance diagram for Vkm::Engine::MeshAsset:

Public Member Functions
Math::AABB	bounds () const noexcept
	The local-space bounds as one box.
void	computeAndSetBounds ()
	Compute the local-space AABB from vertex positions and store it in boundsMin / boundsMax.
void	computeAndSetSkinRadius (const SkeletonAsset &rig)
	Compute how far a vertex sits from the bones that drive it and store it in skinRadius.
Public Member Functions inherited from Vkm::Engine::Resource
	Resource (const Resource &other)
	Duplicate other's contents and name, but not its identity.
const std::string &	name () const noexcept
	Serializable identity; non-empty and unique within its type once added.
uint64_t	uid () const noexcept
	Process-unique id stamped by add(); names the asset, not the slot it sits in.
uint64_t	version () const noexcept
	Change counter the backend keys GPU re-uploads on; moved by commit().
bool	isHidden () const noexcept
	Added by ResourceManager::addPrivate: not user-facing, not saved.
nlohmann::json &	sourceJson ()
	Mutable source JSON, allocating a null document if there is none.
const nlohmann::json &	sourceJson () const
	Const source JSON; asserts hasSource(), so guard the call with it.

Public Attributes
std::vector< SkinVertex >	skin = {}
	Per-vertex rig binding: empty, or exactly vertices.size() long.
std::string	skeleton = ""
	Name of the rig skin's indices address; empty when unskinned.
float	skinRadius = 0.0f
	Largest distance from a vertex to any bone that influences it.
glm::vec3	boundsMin {0}
	Local space.
glm::vec3	boundsMax {0}
	Local space.
bool	loading = false
	True while an async decode is in flight.

Detailed Description

CPU-side geometry: indexed triangle mesh plus a cached local-space AABB.

Member Function Documentation

bounds()

Math::AABB Vkm::Engine::MeshAsset::bounds ( ) const

inlinenoexcept

The local-space bounds as one box.

Returns

The box spanning boundsMin to boundsMax.

computeAndSetBounds()

void Vkm::Engine::MeshAsset::computeAndSetBounds

(

)

Compute the local-space AABB from vertex positions and store it in boundsMin / boundsMax.

An empty mesh yields a zero-extent box at the origin.

computeAndSetSkinRadius()

void Vkm::Engine::MeshAsset::computeAndSetSkinRadius

(

const SkeletonAsset &

rig

)

Compute how far a vertex sits from the bones that drive it and store it in skinRadius.

Required after filling a skinned mesh: zero is a wrong box, not a small one (see VisibilitySystem). Zero when unskinned or the skin is not parallel.

Parameters

rig	The rig skin's bone indices address, for the bind-pose origins.

Member Data Documentation

skin

std::vector<SkinVertex> Vkm::Engine::MeshAsset::skin = {}

Per-vertex rig binding: empty, or exactly vertices.size() long.

A mesh is skinned iff this is non-empty.

skeleton

std::string Vkm::Engine::MeshAsset::skeleton = ""

Name of the rig skin's indices address; empty when unskinned.

A compatibility tag, not a dependency: the pose comes from whatever rig drives it. SkeletalAnimationSystem warns when the two names disagree.

skinRadius

float Vkm::Engine::MeshAsset::skinRadius = 0.0f

Largest distance from a vertex to any bone that influences it.

What a bone-origin box is inflated by to contain the skin. Zero when unskinned.

loading

bool Vkm::Engine::MeshAsset::loading = false

True while an async decode is in flight.

Cleared by AsyncLoaderSystem; until then the mesh is empty and draws nothing.

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

• resource/asset/mesh_asset.h