[Bf-blender-cvs] [5f01048dcb9] blender-v2.83-release: Fix T75414: Incorrect masking in Color Balance modifier

[Richard Antalik]

Commit: 5f01048dcb9a146f2ffc6273f18c5d0553b3f6f1
Author: Richard Antalik
Date:   Thu Jun 18 05:41:19 2020 +0200
Branches: blender-v2.83-release
https://developer.blender.org/rB5f01048dcb9a146f2ffc6273f18c5d0553b3f6f1

Fix T75414: Incorrect masking in Color Balance modifier

Color balance factor was infinity. Clamp to +/- `FLT_MAX`

Reviewed By: sergey

Differential Revision: https://developer.blender.org/D7884

===================================================================

M	source/blender/blenkernel/intern/sequencer.c

===================================================================

diff --git a/source/blender/blenkernel/intern/sequencer.c b/source/blender/blenkernel/intern/sequencer.c
index d0527a2635a..dc27ca9e6cb 100644
--- a/source/blender/blenkernel/intern/sequencer.c
+++ b/source/blender/blenkernel/intern/sequencer.c
@@ -2342,7 +2342,9 @@ MINLINE float color_balance_fl(
     x = 0.f;
   }
 
-  return powf(x, gamma) * mul;
+  x = powf(x, gamma) * mul;
+  CLAMP(x, FLT_MIN, FLT_MAX);
+  return x;
 }
 
 static void make_cb_table_float(float lift, float gain, float gamma, float *table, float mul)