diff --git a/orx-fx/src/main/kotlin/blur/ApproximateGaussianBlur.kt b/orx-fx/src/main/kotlin/blur/ApproximateGaussianBlur.kt
index 8631dc6d..1612bf00 100644
--- a/orx-fx/src/main/kotlin/blur/ApproximateGaussianBlur.kt
+++ b/orx-fx/src/main/kotlin/blur/ApproximateGaussianBlur.kt
@@ -1,9 +1,6 @@
 package org.openrndr.extra.fx.blur
 
-import org.openrndr.draw.ColorBuffer
-import org.openrndr.draw.Filter
-import org.openrndr.draw.Shader
-import org.openrndr.draw.colorBuffer
+import org.openrndr.draw.*
 import org.openrndr.extra.fx.filterFragmentCode
 
 import org.openrndr.math.Vector2
@@ -14,6 +11,9 @@ import org.openrndr.math.Vector2
 class ApproximateGaussianBlur : Filter(Shader.createFromCode(Filter.filterVertexCode,
         filterFragmentCode("blur/approximate-gaussian-blur.frag"))) {
 
+    data class ColorBufferDescription(val width:Int, val height:Int, val contentScale:Double, val format:ColorFormat, val type:ColorType)
+
+
     /**
      * blur sample window, default value is 5
      */
@@ -35,7 +35,8 @@ class ApproximateGaussianBlur : Filter(Shader.createFromCode(Filter.filterVertex
     var gain: Double by parameters
 
 
-    private var intermediate: ColorBuffer? = null
+    private var intermediateCache = mutableMapOf<ColorBufferDescription, ColorBuffer>()
+
 
     init {
         window = 5
@@ -45,14 +46,9 @@ class ApproximateGaussianBlur : Filter(Shader.createFromCode(Filter.filterVertex
     }
 
     override fun apply(source: Array<ColorBuffer>, target: Array<ColorBuffer>) {
-        intermediate?.let {
-            if (it.width != target[0].width || it.height != target[0].height) {
-                intermediate = null
-            }
-        }
-
-        if (intermediate == null) {
-            intermediate = colorBuffer(target[0].width, target[0].height, target[0].contentScale, target[0].format, target[0].type)
+        val intermediateDescription = ColorBufferDescription(target[0].width, target[0].height, target[0].contentScale, target[0].format, target[0].type)
+        val intermediate = intermediateCache.getOrPut(intermediateDescription) {
+            colorBuffer(target[0].width, target[0].height, target[0].contentScale, target[0].format, target[0].type)
         }
 
         intermediate?.let {