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Diffstat (limited to 'source/blender/blenlib/intern/math_rotation.c')
-rw-r--r-- | source/blender/blenlib/intern/math_rotation.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/source/blender/blenlib/intern/math_rotation.c b/source/blender/blenlib/intern/math_rotation.c index 4af0a3a4248..a8212a531a6 100644 --- a/source/blender/blenlib/intern/math_rotation.c +++ b/source/blender/blenlib/intern/math_rotation.c @@ -1503,3 +1503,13 @@ void copy_dq_dq(DualQuat *dq1, DualQuat *dq2) memcpy(dq1, dq2, sizeof(DualQuat)); } +/* lense/angle conversion (radians) */ +float lens_to_angle(float lens) +{ + return 2.0f * atan(16.0f/lens); +} + +float angle_to_lens(float angle) +{ + return 16.0f / tan(angle * 0.5f); +} |