warp.volume_world_to_index_dir#

warp.volume_world_to_index_dir(
id: uint64,
xyz: vec3f,
) → vec3f#

  • Kernel

  • Python

  • Differentiable

Transform the direction xyz from world space to the volume’s index space using the linear part of the volume’s affine transform.

For positions, use volume_world_to_index() instead.

Parameters:

  • id – The id of a warp.Volume.

  • xyz – Direction in world space.

Returns:

The transformed direction in index space with float32 precision. Translation is not applied, and the vector is not renormalized.

See volume_index_to_world() for a usage example.

warp.volume_world_to_index_dir(
id: uint64,
xyz: vec3d,
) → vec3d

  • Kernel

  • Python

  • Differentiable

Transform the direction xyz from world space to the volume’s index space using the linear part of the volume’s affine transform (float64 precision).

The float64 overload of volume_world_to_index_dir(). Behavior and usage match the default float32 overload; see it for details and a usage example.