From 70d982f1d50f3fed123e79f531947b8380b9b3dd Mon Sep 17 00:00:00 2001 From: Brecht Van Lommel Date: Fri, 5 Jan 2007 23:55:09 +0000 Subject: Fix for bug #5510: Alt-B clipping doesn't work in side view. This seems to be a bug in some gluUnProject implementations, used the same workaround as sculpt mode did already. --- source/blender/src/editview.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'source/blender/src/editview.c') diff --git a/source/blender/src/editview.c b/source/blender/src/editview.c index 16c695288a4..3b375a0319f 100644 --- a/source/blender/src/editview.c +++ b/source/blender/src/editview.c @@ -2541,6 +2541,11 @@ void view3d_edit_clipping(View3D *v3d) glGetIntegerv(GL_VIEWPORT, viewport); glGetDoublev(GL_MODELVIEW_MATRIX, mvmatrix); glGetDoublev(GL_PROJECTION_MATRIX, projmatrix); + + /* near zero floating point values can give issues with gluUnProject + in side view on some implementations */ + if(fabs(mvmatrix[0]) < 1e-6) mvmatrix[0]= 0.0; + if(fabs(mvmatrix[5]) < 1e-6) mvmatrix[5]= 0.0; /* Set up viewport so that gluUnProject will give correct values */ viewport[0] = 0; -- cgit v1.2.3