From 284e6ab9038c997e62250b1c3d5d686c250d3dfe Mon Sep 17 00:00:00 2001
From: David Manthey <david.manthey@kitware.com>
Date: Thu, 11 Apr 2019 08:07:20 -0400
Subject: [PATCH] Don't remove and readd the actor when rebuilding webgl
 points.

Also, don't rerender as part of build; other actions rerender when
appropriate, so this is wasted time.
---
 src/webgl/pointFeature.js | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/src/webgl/pointFeature.js b/src/webgl/pointFeature.js
index a9c8396646..07de3cb3d4 100644
--- a/src/webgl/pointFeature.js
+++ b/src/webgl/pointFeature.js
@@ -456,15 +456,10 @@ var webgl_pointFeature = function (arg) {
    * @returns {this}
    */
   this._build = function () {
-
-    if (m_actor) {
-      m_this.renderer().contextRenderer().removeActor(m_actor);
-    }
-
     createGLPoints();
-
-    m_this.renderer().contextRenderer().addActor(m_actor);
-    m_this.renderer().contextRenderer().render();
+    if (!m_this.renderer().contextRenderer().hasActor(m_actor)) {
+      m_this.renderer().contextRenderer().addActor(m_actor);
+    }
     m_this.buildTime().modified();
     return m_this;
   };