Crop Compositing Node:

This commit adds a new node, crop, to the compositor. This node can be used to
crop input image. It has two modes of operation. It can either crop image
size (Crop Image Size option) or crop while retaining original size of the
image. This latter mode can be used to preview the crop.

Use X1, Y1, X2, Y2 controls to manage the area to be cropped.

Note that I added a check for image preview min and max values to node_update.
This is because it could give inappropriate values in certain cases when
Crop Image Size option was toggled (values such as x1=0, y1=0, x2=60, y2=0 would
result in eternal loop due to bad min and max (min bigger than max!)). The check 
makes sure that min and max values are always valid.

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/makesdna/DNA_node_types.h b/source/blender/makesdna/DNA_node_types.h
index 40ceb9f0c46..5f20939fc23 100644
--- a/source/blender/makesdna/DNA_node_types.h
+++ b/source/blender/makesdna/DNA_node_types.h
@@ -214,6 +214,10 @@ typedef struct NodeChroma {
 	float key[4];
 } NodeChroma;
 
+typedef struct NodeTwoXYs {
+	short x1, x2, y1, y2;
+} NodeTwoXYs;
+
 typedef struct NodeGeometry {
 	char uvname[32];
 	char colname[32];