diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_base_inline.c')
-rw-r--r-- | source/blender/blenlib/intern/math_base_inline.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/source/blender/blenlib/intern/math_base_inline.c b/source/blender/blenlib/intern/math_base_inline.c index 983fd3b6543..49f9faf1704 100644 --- a/source/blender/blenlib/intern/math_base_inline.c +++ b/source/blender/blenlib/intern/math_base_inline.c @@ -656,6 +656,18 @@ MINLINE int compare_ff_relative(float a, float b, const float max_diff, const in return ((ua.i < 0) != (ub.i < 0)) ? 0 : (abs(ua.i - ub.i) <= max_ulps) ? 1 : 0; } +MINLINE bool compare_threshold_relative(const float value1, const float value2, const float thresh) +{ + const float abs_diff = fabsf(value1 - value2); + /* Avoid letting the threshold get too small just because the values happen to be close to zero. + */ + if (fabsf(value2) < 1) { + return abs_diff > thresh; + } + /* Using relative threshold in general. */ + return abs_diff > thresh * fabsf(value2); +} + MINLINE float signf(float f) { return (f < 0.0f) ? -1.0f : 1.0f; |