diff options
| author | Campbell Barton <ideasman42@gmail.com> | 2010-04-17 12:55:31 +0400 |
|---|---|---|
| committer | Campbell Barton <ideasman42@gmail.com> | 2010-04-17 12:55:31 +0400 |
| commit | 3afd8d6cc859255d0b52081fbee91b6c6a012b4c (patch) | |
| tree | 262281013dbad763f94e4f3cd83d414aa24dd0bf /source/blender/blenlib/intern/math_rotation.c | |
| parent | c00e7fb89dc6f44b74036256e55e00e9287b67db (diff) | |
move camera lens/angle conversion to BLI_math
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); +} |