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

Transforms standing a model made in map axes (x forward, y left, z up) at a point of a
map, in the renderer's frame, matching `CauldronGPU.Bsp.transform/1` and
`CauldronGPU.Bsp.point/2`: map units times `scale` metres, +Z up turned to +Y up.

    CauldronGPU.Placement.transform(1 / 32, {480.0, -352.0, 88.0}, 90)

# `vec3`

```elixir
@type vec3() :: {number(), number(), number()}
```

# `transform`

```elixir
@spec transform(number(), vec3(), number() | vec3()) :: CauldronGPU.Transform.t()
```

The transform for a model at map point `origin` turned by `angles`: a yaw in degrees
(0 along +X, counter-clockwise from above), or `{pitch, yaw, roll}` in degrees, applied
roll about x, then pitch about y, then yaw about z.

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