From 5a1921d7bd2dcec456a4aa43c38cbdb5b6e09712 Mon Sep 17 00:00:00 2001
From: Frederic Junod <frederic.junod@camptocamp.com>
Date: Mon, 6 Jan 2020 10:52:16 +0100
Subject: [PATCH] Use a function to get the value of the gradient

---
 src/ol/layer/Heatmap.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ol/layer/Heatmap.js b/src/ol/layer/Heatmap.js
index 646777a0d3..eb7abdf0ad 100644
--- a/src/ol/layer/Heatmap.js
+++ b/src/ol/layer/Heatmap.js
@@ -294,7 +294,9 @@ class Heatmap extends VectorLayer {
               gl_FragColor.rgb *= gl_FragColor.a;
             }`,
           uniforms: {
-            u_gradientTexture: this.gradient_
+            u_gradientTexture: function() {
+              return this.gradient_;
+            }.bind(this)
           }
         }
       ]