diff options
Diffstat (limited to 'source/blender/blenkernel/intern/sequencer.c')
| -rw-r--r-- | source/blender/blenkernel/intern/sequencer.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/source/blender/blenkernel/intern/sequencer.c b/source/blender/blenkernel/intern/sequencer.c index a4c1527c3c5..bd3e0129bcc 100644 --- a/source/blender/blenkernel/intern/sequencer.c +++ b/source/blender/blenkernel/intern/sequencer.c @@ -1494,7 +1494,7 @@ static StripColorBalance calc_cb(StripColorBalance * cb_) int c; for (c = 0; c < 3; c++) { - cb.lift[c] = 2.0f - pow(cb.lift[c], 2); + cb.lift[c] = 2.0f - cb.lift[c]; } if(cb.flag & SEQ_COLOR_BALANCE_INVERSE_LIFT) { @@ -1526,10 +1526,10 @@ static StripColorBalance calc_cb(StripColorBalance * cb_) return cb; } -/* pow(p[c] * cb.gain[c] + cb.lift[c], cb.gamma[c]) * mul;*/ -MINLINE float color_balance_fl(const float v, const float lift, const float gain, const float gamma, const float mul) +/* note: lift is actually 2-lift */ +MINLINE float color_balance_fl(float v, const float lift, const float gain, const float gamma, const float mul) { - return powf(powf(v * gain, lift), gamma) * mul; + return powf((((v - 1.0f) * lift) + 1.0f) * gain, gamma) * mul; } static void make_cb_table_byte(float lift, float gain, float gamma, |