warp.transform\_vector
======================

.. function:: warp._src.lang.transform_vector(xform: Transformation[Float], vec: Vector[Float,Literal[3]]) -> Vector[Float,Literal[3]]

   .. hlist::
      :columns: 8

      * Kernel
      * Differentiable

   Apply a transform to a vector.
   
   Treat the homogeneous coordinate as w=0 (rotation only).

.. function:: warp._src.lang.transform_vector(mat: Matrix[Float,Literal[4],Literal[4]], vec: Vector[Float,Literal[3]]) -> Vector[Float,Literal[3]]
   :noindex:

   .. hlist::
      :columns: 8

      * Kernel
      * Differentiable

   Apply a transform to a vector.
   
   Treat the homogeneous coordinate as w=0.
   
   The transformation is applied treating ``vec`` as a column vector, e.g.: ``y = mat*vec``.
   
   This is in contrast to some libraries, notably USD, which applies transforms to row vectors, ``y^T = vec^T*mat^T``.
   If the transform is coming from a library that uses row-vectors, then users should transpose the transformation
   matrix before calling this method.