UT3Tangent.sum_tangents

t3toolbox.uniform_manifold.UT3Tangent.sum_tangents(axis=None)

def sum_tangents(self, axis=None) -> 'UT3Tangent':

Sum over the tangent stack K (a batch of tangents at the shared frame) into one tangent.

Corewise (= the tensor sum, by linearity); the frame stack C is preserved. axis indexes within K (default: the whole tangent stack). The masks OR over the summed axes – a no-op for a single-frame K stack (constant masks), but the correct reduction in general.

Return type:

UT3Tangent