diff --git a/src/filters/displacement/DisplacementFilter.js b/src/filters/displacement/DisplacementFilter.js
index b5d030c..a50bdc6 100644
--- a/src/filters/displacement/DisplacementFilter.js
+++ b/src/filters/displacement/DisplacementFilter.js
@@ -56,11 +56,9 @@
      */
     apply(filterManager, input, output)
     {
-        const ratio =  (1 / output.destinationFrame.width) * (output.size.width / input.size.width);
-
         this.uniforms.filterMatrix = filterManager.calculateSpriteMatrix(this.maskMatrix, this.maskSprite);
-        this.uniforms.scale.x = this.scale.x * ratio;
-        this.uniforms.scale.y = this.scale.y * ratio;
+        this.uniforms.scale.x = this.scale.x;
+        this.uniforms.scale.y = this.scale.y;
 
          // draw the filter...
         filterManager.applyFilter(this, input, output);

diff --git a/src/filters/displacement/DisplacementFilter.js b/src/filters/displacement/DisplacementFilter.js
index b5d030c..a50bdc6 100644
--- a/src/filters/displacement/DisplacementFilter.js
+++ b/src/filters/displacement/DisplacementFilter.js
@@ -56,11 +56,9 @@
      */
     apply(filterManager, input, output)
     {
-        const ratio =  (1 / output.destinationFrame.width) * (output.size.width / input.size.width);
-
         this.uniforms.filterMatrix = filterManager.calculateSpriteMatrix(this.maskMatrix, this.maskSprite);
-        this.uniforms.scale.x = this.scale.x * ratio;
-        this.uniforms.scale.y = this.scale.y * ratio;
+        this.uniforms.scale.x = this.scale.x;
+        this.uniforms.scale.y = this.scale.y;
 
          // draw the filter...
         filterManager.applyFilter(this, input, output);
diff --git a/src/filters/displacement/displacement.frag b/src/filters/displacement/displacement.frag
index e7e4053..c310299 100644
--- a/src/filters/displacement/displacement.frag
+++ b/src/filters/displacement/displacement.frag
@@ -6,14 +6,15 @@
 uniform sampler2D uSampler;
 uniform sampler2D mapSampler;
 
+uniform vec4 filterArea;
 uniform vec4 filterClamp;
 
 void main(void)
 {
-   vec4 map =  texture2D(mapSampler, vFilterCoord);
+  vec4 map =  texture2D(mapSampler, vFilterCoord);
 
-   map -= 0.5;
-   map.xy *= scale;
+  map -= 0.5;
+  map.xy *= scale / filterArea.xy;
 
-   gl_FragColor = texture2D(uSampler, clamp(vec2(vTextureCoord.x + map.x, vTextureCoord.y + map.y), filterClamp.xy, filterClamp.zw));
+  gl_FragColor = texture2D(uSampler, clamp(vec2(vTextureCoord.x + map.x, vTextureCoord.y + map.y), filterClamp.xy, filterClamp.zw));
 }