Add default-antialias-enable configuration variable

panda/src/pgraph/antialiasAttrib.cxx

@@ -35,7 +35,7 @@ int AntialiasAttrib::_attrib_slot;
 //               M_faster to specify a performance/quality tradeoff
 //               hint.
 //
-//               If M_none is specified, no antialiasing is performed.  
+//               If M_none is specified, no antialiasing is performed.
 //
 //               If M_multisample is specified, it means to use the
 //               special framebuffer multisample bits for
@@ -74,18 +74,22 @@ make(unsigned short mode) {
 ////////////////////////////////////////////////////////////////////
 CPT(RenderAttrib) AntialiasAttrib::
 make_default() {
-  return return_new(new AntialiasAttrib(M_none));
+  if (default_antialias_enable) {
+    return return_new(new AntialiasAttrib(M_auto));
+  } else {
+    return return_new(new AntialiasAttrib(M_none));
+  }
 }
 
 ////////////////////////////////////////////////////////////////////
 //     Function: AntialiasAttrib::output
 //       Access: Public, Virtual
-//  Description: 
+//  Description:
 ////////////////////////////////////////////////////////////////////
 void AntialiasAttrib::
 output(ostream &out) const {
   out << get_type() << ":";
-  
+
   int type = get_mode_type();
   char sep = ' ';
 

panda/src/pgraph/config_pgraph.cxx

@@ -305,6 +305,11 @@ ConfigVariableInt max_lenses
           "this can be used as a simple sanity check.  Set it larger or "
           "smaller to suit your needs."));
 
+ConfigVariableBool default_antialias_enable
+("default-antialias-enable", false,
+ PRC_DESC("Set this true to enable the M_auto antialiasing mode for all "
+          "nodes by default."));
+
 ConfigVariableBool polylight_info
 ("polylight-info", false,
  PRC_DESC("Set this true to view some info statements regarding the polylight. "

panda/src/pgraph/config_pgraph.h

@@ -58,6 +58,7 @@ extern EXPCL_PANDA_PGRAPH ConfigVariableBool premunge_data;
 extern ConfigVariableBool preserve_geom_nodes;
 extern ConfigVariableBool flatten_geoms;
 extern EXPCL_PANDA_PGRAPH ConfigVariableInt max_lenses;
+extern ConfigVariableBool default_antialias_enable;
 
 extern ConfigVariableBool polylight_info;
 extern ConfigVariableDouble lod_fade_time;