From b8935be2c320722526e1748602604d77d9394e2f Mon Sep 17 00:00:00 2001
From: rdb <git@rdb.name>
Date: Sun, 9 Feb 2014 10:41:26 +0000
Subject: [PATCH] fix bug LP#1277916: MeshDrawer causes crash if setBudget not
 explicitly called

---
 panda/src/grutil/meshDrawer.I   | 1 +
 panda/src/grutil/meshDrawer.cxx | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/panda/src/grutil/meshDrawer.I b/panda/src/grutil/meshDrawer.I
index 1e22a653e9..e1aeace6e8 100644
--- a/panda/src/grutil/meshDrawer.I
+++ b/panda/src/grutil/meshDrawer.I
@@ -29,6 +29,7 @@ MeshDrawer() {
   _uv = NULL;
   _color = NULL;
   _budget = 5000;
+  _vdata = NULL;
 }
 
 ////////////////////////////////////////////////////////////////////
diff --git a/panda/src/grutil/meshDrawer.cxx b/panda/src/grutil/meshDrawer.cxx
index 8aeb9d7d65..e270a43786 100644
--- a/panda/src/grutil/meshDrawer.cxx
+++ b/panda/src/grutil/meshDrawer.cxx
@@ -110,6 +110,11 @@ void MeshDrawer::begin(NodePath camera, NodePath render) {
   if (_normal != NULL) delete _normal;
   if (_uv != NULL)     delete _uv;
   if (_color != NULL)  delete _color;
+
+  if (_vdata == NULL) {
+    generator(_budget);
+  }
+
   _vertex = new GeomVertexRewriter(_vdata, "vertex");
   _uv = new GeomVertexRewriter(_vdata, "texcoord");
   _normal = new GeomVertexRewriter(_vdata, "normal");