Fixed Constraint projection code in perspective mode. When using a planar constraints, it follows the movement of the mouse exactly instead of just casting on the plane.

In user terms: the motion on screen of the selection follows the motion of the mouse pointer.

Gives some errors when the constraint plane is nearly perpendicular to the view port though.

Added a debug print function for 4D vectors to arithb.c

Optimised the 3D -> view projection functions in view.c (a bit).

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/blenlib/intern/arithb.c b/source/blender/blenlib/intern/arithb.c
index 095f8fb5052..95e07dda0c8 100644
--- a/source/blender/blenlib/intern/arithb.c
+++ b/source/blender/blenlib/intern/arithb.c
@@ -961,6 +961,14 @@ void printvecf( char *str,  float v[3])
 
 }
 
+void printvec4f( char *str,  float v[4])
+{
+	printf("%s\n", str);
+	printf("%f %f %f %f\n",v[0],v[1],v[2], v[3]);
+	printf("\n");
+
+}
+
 void printmatrix4( char *str,  float m[][4])
 {
 	printf("%s\n", str);