Compositor: Add Invert option to the movie clip stabilization node

This appears to be really common workflow when you stabilize shot to make compo
easier (roto, some effects and so) and then re-introduce the motion back.

Surely it's doable with some magic nodes and manual network for transforming
but such workflow is too common in VFX to resist adding one small option in
single node for this.

1 files changed, 14 insertions, 8 deletions

diff --git a/source/blender/compositor/nodes/COM_Stabilize2dNode.cpp b/source/blender/compositor/nodes/COM_Stabilize2dNode.cpp
index d1babcc8103..f25c7b3fc2d 100644
--- a/source/blender/compositor/nodes/COM_Stabilize2dNode.cpp
+++ b/source/blender/compositor/nodes/COM_Stabilize2dNode.cpp
@@ -40,11 +40,13 @@ Stabilize2dNode::Stabilize2dNode(bNode *editorNode) : Node(editorNode)
 
 void Stabilize2dNode::convertToOperations(NodeConverter &converter, const CompositorContext &context) const
 {
+	bNode *editorNode = this->getbNode();
 	NodeInput *imageInput = this->getInputSocket(0);
-	MovieClip *clip = (MovieClip *)getbNode()->id;
+	MovieClip *clip = (MovieClip *)editorNode->id;
+	bool invert = (editorNode->custom2 & CMP_NODEFLAG_STABILIZE_INVERSE) != 0;
 	
 	ScaleOperation *scaleOperation = new ScaleOperation();
-	scaleOperation->setSampler((PixelSampler)this->getbNode()->custom1);
+	scaleOperation->setSampler((PixelSampler)editorNode->custom1);
 	RotateOperation *rotateOperation = new RotateOperation();
 	rotateOperation->setDoDegree2RadConversion(false);
 	TranslateOperation *translateOperation = new TranslateOperation();
@@ -53,24 +55,28 @@ void Stabilize2dNode::convertToOperations(NodeConverter &converter, const Compos
 	MovieClipAttributeOperation *xAttribute = new MovieClipAttributeOperation();
 	MovieClipAttributeOperation *yAttribute = new MovieClipAttributeOperation();
 	SetSamplerOperation *psoperation = new SetSamplerOperation();
-	psoperation->setSampler((PixelSampler)this->getbNode()->custom1);
-	
+	psoperation->setSampler((PixelSampler)editorNode->custom1);
+
 	scaleAttribute->setAttribute(MCA_SCALE);
 	scaleAttribute->setFramenumber(context.getFramenumber());
 	scaleAttribute->setMovieClip(clip);
-	
+	scaleAttribute->setInvert(invert);
+
 	angleAttribute->setAttribute(MCA_ANGLE);
 	angleAttribute->setFramenumber(context.getFramenumber());
 	angleAttribute->setMovieClip(clip);
-	
+	angleAttribute->setInvert(invert);
+
 	xAttribute->setAttribute(MCA_X);
 	xAttribute->setFramenumber(context.getFramenumber());
 	xAttribute->setMovieClip(clip);
-	
+	xAttribute->setInvert(invert);
+
 	yAttribute->setAttribute(MCA_Y);
 	yAttribute->setFramenumber(context.getFramenumber());
 	yAttribute->setMovieClip(clip);
-	
+	yAttribute->setInvert(invert);
+
 	converter.addOperation(scaleAttribute);
 	converter.addOperation(angleAttribute);
 	converter.addOperation(xAttribute);