diff --git a/orx-filter-extension/README.md b/orx-filter-extension/README.md
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index 30d0c8f9..00000000
--- a/orx-filter-extension/README.md
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@@ -1,21 +0,0 @@
-# orx-filter-extension
-
-To apply graphics filters on every animation frame using `extend(FILTER_NAME())`.
-
-##### API
-
-```kotlin
-fun <F : Filter> Program.extend(filter: F, configuration: F.() -> Unit = {}): Extension
-```
-
-##### Usage
-
-```kotlin
-fun main() = application {
-    program {
-        extend(FXAA()) {
-            // this function is executed every frame
-        }
-    }
-}
-```
diff --git a/orx-filter-extension/src/main/kotlin/FilterExtension.kt b/orx-filter-extension/src/main/kotlin/FilterExtension.kt
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--- a/orx-filter-extension/src/main/kotlin/FilterExtension.kt
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-package org.openrndr.extra.filterextension
-
-import org.openrndr.Extension
-import org.openrndr.Program
-import org.openrndr.color.ColorRGBa
-import org.openrndr.draw.*
-import org.openrndr.math.Matrix44
-
-/**
- * Extends the [Program] with a [Filter]. This is achieved by wrapping the Filter in an Extension.
- */
-fun <F : Filter> Program.extend(filter: F, configuration: F.() -> Unit = {}): Extension {
-
-    val filterExtension = object : Extension {
-        override var enabled: Boolean = true
-
-        var renderTarget: RenderTarget? = null
-        var filtered: ColorBuffer? = null
-        override fun beforeDraw(drawer: Drawer, program: Program) {
-
-            drawer.pushStyle()
-            if (renderTarget == null || renderTarget?.width != program.width || renderTarget?.height != program.height) {
-                renderTarget?.let {
-                    it.colorBuffer(0).destroy()
-                    it.detachColorAttachments()
-                    it.destroy()
-                }
-
-                filtered?.destroy()
-                renderTarget = renderTarget(program.width, program.height) {
-                    colorBuffer()
-                    depthBuffer()
-                }
-
-                filtered = colorBuffer(program.width, program.height)
-
-                renderTarget?.let {
-                    drawer.withTarget(it) {
-                        clear(program.backgroundColor ?: ColorRGBa.TRANSPARENT)
-                    }
-                }
-            }
-            renderTarget?.bind()
-            program.backgroundColor?.let {
-                drawer.clear(it)
-            }
-        }
-
-        override fun afterDraw(drawer: Drawer, program: Program) {
-            drawer.popStyle()
-            renderTarget?.unbind()
-
-            filter.configuration()
-            renderTarget?.let {
-                filtered?.let { filtered ->
-                    drawer.isolated {
-                        drawer.ortho()
-                        drawer.view = Matrix44.IDENTITY
-                        drawer.model = Matrix44.IDENTITY
-                        filter.apply(it.colorBuffer(0), filtered)
-                        drawer.image(filtered)
-                    }
-                }
-            }
-        }
-    }
-
-    return extend(filterExtension)
-}
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