White Balance modifier for the VSE

This snippet creates a white balance modifier for the video sequence editor. It is useful for everyone who likes to set a new white point in the video source (easily via the eyedropper). Just select a point in the source file where you know that it should be white. The algorithm will then shift the colors towards your new white point.

See attached the image for a quick demo.

{F270576}

Reviewers: psy-fi

Reviewed By: psy-fi

Subscribers: Blendify

Projects: #bf_blender

Differential Revision: https://developer.blender.org/D1698

1 files changed, 10 insertions, 1 deletions

diff --git a/source/blender/makesdna/DNA_sequence_types.h b/source/blender/makesdna/DNA_sequence_types.h
index e5c102b1d2d..bb49419b2ac 100644
--- a/source/blender/makesdna/DNA_sequence_types.h
+++ b/source/blender/makesdna/DNA_sequence_types.h
@@ -307,11 +307,12 @@ typedef struct SequenceModifierData {
 	int type, flag;
 	char name[64]; /* MAX_NAME */
 
-	/* mask input, either sequence or maks ID */
+	/* mask input, either sequence or mask ID */
 	int mask_input_type, pad;
 
 	struct Sequence *mask_sequence;
 	struct Mask     *mask_id;
+	struct Scene    *scene;
 } SequenceModifierData;
 
 typedef struct ColorBalanceModifierData {
@@ -344,6 +345,13 @@ typedef struct SequencerMaskModifierData {
 	SequenceModifierData modifier;
 } SequencerMaskModifierData;
 
+typedef struct WhiteBalanceModifierData {
+	SequenceModifierData modifier;
+
+	float white_value[3];
+	float pad;
+} WhiteBalanceModifierData;
+
 /* ***************** Scopes ****************** */
 
 typedef struct SequencerScopes {
@@ -519,6 +527,7 @@ enum {
 	seqModifierType_HueCorrect     = 3,
 	seqModifierType_BrightContrast = 4,
 	seqModifierType_Mask           = 5,
+	seqModifierType_WhiteBalance   = 6,
 
 	NUM_SEQUENCE_MODIFIER_TYPES
 };