[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [32223] trunk/blender/source/blender/ editors/mesh/editmesh_mods.c: attempt to fix [#21179] r26939 - Lasso tool does not work when drawing counter clock wise

[Campbell Barton]

Revision: 32223
          http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=32223
Author:   campbellbarton
Date:     2010-10-01 09:49:00 +0200 (Fri, 01 Oct 2010)

Log Message:
-----------
attempt to fix [#21179] r26939 - Lasso tool does not work when drawing counter clock wise

can't test this so guessing this is caused by face culling.

Modified Paths:
--------------
    trunk/blender/source/blender/editors/mesh/editmesh_mods.c

Modified: trunk/blender/source/blender/editors/mesh/editmesh_mods.c
===================================================================
--- trunk/blender/source/blender/editors/mesh/editmesh_mods.c	2010-10-01 05:19:40 UTC (rev 32222)
+++ trunk/blender/source/blender/editors/mesh/editmesh_mods.c	2010-10-01 07:49:00 UTC (rev 32223)
@@ -258,6 +258,7 @@
 	unsigned int *dr, *drm;
 	struct ImBuf *buf, *bufmask;
 	int a;
+	GLboolean is_cull;
 	
 	/* method in use for face selecting too */
 	if(vc->obedit==NULL) {
@@ -276,6 +277,10 @@
 	glDisable(GL_DEPTH_TEST);
 	
 	glColor3ub(0, 0, 0);
+
+	/* some opengl drivers have problems with draw direction */
+	glGetBooleanv(GL_CULL_FACE, &is_cull);
+	if(is_cull) glDisable(GL_CULL_FACE);
 	
 	/* yah, opengl doesn't do concave... tsk! */
 	ED_region_pixelspace(vc->ar);
@@ -302,6 +307,9 @@
 	}
 	IMB_freeImBuf(buf);
 	IMB_freeImBuf(bufmask);
+	
+	if(is_cull) glEnable(GL_CULL_FACE);
+
 	return 1;
 	
 }