diff --git a/orx-jumpflood/src/commonMain/kotlin/fx/InnerBevel.kt b/orx-jumpflood/src/commonMain/kotlin/fx/InnerBevel.kt
index 61d13dc8..586b9ee0 100644
--- a/orx-jumpflood/src/commonMain/kotlin/fx/InnerBevel.kt
+++ b/orx-jumpflood/src/commonMain/kotlin/fx/InnerBevel.kt
@@ -23,7 +23,7 @@ private class InnerBevelFilter : Filter(filterShaderFromCode(jf_inner_bevel, "in
 }
 
 @Description("Inner bevel")
-class InnerBevel : Filter() {
+class InnerBevel : Filter1to1() {
     @DoubleParameter("threshold", 0.0, 1.0)
     var threshold = 0.01
 
diff --git a/orx-jumpflood/src/commonMain/kotlin/fx/Inpaint.kt b/orx-jumpflood/src/commonMain/kotlin/fx/Inpaint.kt
index b2db47c5..058ea77c 100644
--- a/orx-jumpflood/src/commonMain/kotlin/fx/Inpaint.kt
+++ b/orx-jumpflood/src/commonMain/kotlin/fx/Inpaint.kt
@@ -28,7 +28,7 @@ private class InpaintFilter : Filter(filterShaderFromCode(jf_inpaint, "inpaint")
 }
 
 @Description("Inpaint")
-class Inpaint : Filter() {
+class Inpaint : Filter1to1() {
     @DoubleParameter("width", 0.0, 1.0)
     var width = 0.5
 
diff --git a/orx-jumpflood/src/commonMain/kotlin/fx/OuterGlow.kt b/orx-jumpflood/src/commonMain/kotlin/fx/OuterGlow.kt
index c2181409..ead88eaa 100644
--- a/orx-jumpflood/src/commonMain/kotlin/fx/OuterGlow.kt
+++ b/orx-jumpflood/src/commonMain/kotlin/fx/OuterGlow.kt
@@ -32,7 +32,7 @@ private class OuterGlowFilter : Filter(filterShaderFromCode(jf_outer_glow, "oute
 }
 
 @Description("Outer glow")
-class OuterGlow : Filter() {
+class OuterGlow : Filter1to1() {
     @DoubleParameter("width", 0.0, 50.0)
     var width = 5.0
 
diff --git a/orx-jvm/orx-poisson-fill/src/main/kotlin/PoissonBlender.kt b/orx-jvm/orx-poisson-fill/src/main/kotlin/PoissonBlender.kt
index 78a89b81..743aced1 100644
--- a/orx-jvm/orx-poisson-fill/src/main/kotlin/PoissonBlender.kt
+++ b/orx-jvm/orx-poisson-fill/src/main/kotlin/PoissonBlender.kt
@@ -65,7 +65,7 @@ class PoissonBlender(val width: Int, val height: Int, type: ColorType = ColorTyp
 
 }
 
-class PoissonBlend: Filter() {
+class PoissonBlend: Filter2to1() {
     private var blender: PoissonBlender? = null
 
     val alphaToBitmap = AlphaToBitmap()