diff options
Diffstat (limited to 'source/blender/blenlib/BLI_math_matrix.h')
| -rw-r--r-- | source/blender/blenlib/BLI_math_matrix.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/source/blender/blenlib/BLI_math_matrix.h b/source/blender/blenlib/BLI_math_matrix.h index 03b6ff25a4f..ac9364fc254 100644 --- a/source/blender/blenlib/BLI_math_matrix.h +++ b/source/blender/blenlib/BLI_math_matrix.h @@ -15,8 +15,6 @@ * * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV. * All rights reserved. - * - * The Original Code is: some of this file. */ #pragma once @@ -431,6 +429,20 @@ void mat3_to_size(float size[3], const float M[3][3]); void mat4_to_size(float size[3], const float M[4][4]); /** + * Return the largest scale on any axis, the equivalent of calling: + * \code{.c} + * mat3_to_size(size_v3, mat); + * size = size_v3[max_axis_v3(size_v3)]; + * \endcode + * .. without 2x unnecessary `sqrtf` calls. + */ +float mat3_to_size_max_axis(const float M[3][3]); +/** + * Only the first 3 axes are used. + */ +float mat4_to_size_max_axis(const float M[4][4]); + +/** * Extract scale factors from the matrix, with correction to ensure * exact volume in case of a sheared matrix. */ |