From 15583865b62913f4ea78a3a37818236bf5a5930c Mon Sep 17 00:00:00 2001
From: Tom Payne <twpayne@gmail.com>
Date: Thu, 7 Nov 2013 16:55:30 +0100
Subject: [PATCH] Re-use batches when animating or interacting

---
 src/ol/renderer/canvas/canvasvectorlayerrenderer.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/ol/renderer/canvas/canvasvectorlayerrenderer.js b/src/ol/renderer/canvas/canvasvectorlayerrenderer.js
index 4f02284d59..063390600b 100644
--- a/src/ol/renderer/canvas/canvasvectorlayerrenderer.js
+++ b/src/ol/renderer/canvas/canvasvectorlayerrenderer.js
@@ -1,6 +1,7 @@
 goog.provide('ol.renderer.canvas.VectorLayer');
 
 goog.require('goog.vec.Mat4');
+goog.require('ol.ViewHint');
 goog.require('ol.extent');
 goog.require('ol.renderer.canvas.Layer');
 goog.require('ol.renderer.vector');
@@ -105,6 +106,11 @@ ol.renderer.canvas.VectorLayer.prototype.getVectorLayer = function() {
 ol.renderer.canvas.VectorLayer.prototype.prepareFrame =
     function(frameState, layerState) {
 
+  if (frameState.viewHints[ol.ViewHint.ANIMATING] ||
+      frameState.viewHints[ol.ViewHint.INTERACTING]) {
+    return;
+  }
+
   var vectorLayer = this.getVectorLayer();
   var vectorSource = vectorLayer.getVectorSource();
   var frameStateExtent = frameState.extent;