# `CauldronGPU.Pose`
[🔗](https://github.com/jaman/cauldron/blob/v0.3.3/cauldron_gpu/lib/cauldron_gpu/pose.ex#L1)

How an instance's mesh is bent this tick, applied on the graphics card before drawing,
shadows and ray tracing.

  * `blend_to` and `blend` — vertex animation: each vertex moves `blend` (0 to 1) of the
    way to the same vertex of `blend_to`, a mesh handle with as many vertices (a later
    keyframe), and the normals with it
  * `bones` — skinning: a list of 3×4 matrices, each 12 numbers row by row, used by a mesh
    uploaded with a `skin` (`CauldronGPU.Mesh`); a vertex becomes the weighted sum of its
    bones' matrices applied to it, after any blending

Up to 255 bones. A pose with neither leaves the mesh as uploaded.

    {:pose, 7, %CauldronGPU.Pose{blend_to: run_2, blend: 0.4}}

# `matrix`

```elixir
@type matrix() :: [number()]
```

# `t`

```elixir
@type t() :: %CauldronGPU.Pose{
  blend: number(),
  blend_to: CauldronGPU.Handle.t() | nil,
  bones: [matrix()]
}
```

---

*Consult [api-reference.md](api-reference.md) for complete listing*