diff --git a/src/main/java/org/osm2world/core/target/Renderable.java b/src/main/java/org/osm2world/core/target/Renderable.java
deleted file mode 100644
index 72b36b565..000000000
--- a/src/main/java/org/osm2world/core/target/Renderable.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package org.osm2world.core.target;
-
-/**
- * object that can be rendered/exported to a {@link Target}
- */
-public interface Renderable {
-
-	/**
-	 * outputs the 3D geometry.
-	 * Most objects will use the same code for all {@link Target} implementations,
-	 * but some may use special-case handling with instanceof checks.
-	 */
-	public void renderTo(CommonTarget target);
-
-}
diff --git a/src/main/java/org/osm2world/core/world/data/WorldObject.java b/src/main/java/org/osm2world/core/world/data/WorldObject.java
index d657fb602..5ade23776 100644
--- a/src/main/java/org/osm2world/core/world/data/WorldObject.java
+++ b/src/main/java/org/osm2world/core/world/data/WorldObject.java
@@ -18,7 +18,6 @@
 import org.osm2world.core.math.algorithms.CAGUtil;
 import org.osm2world.core.math.shapes.PolygonShapeXZ;
 import org.osm2world.core.math.shapes.SimplePolygonShapeXZ;
-import org.osm2world.core.target.Renderable;
 import org.osm2world.core.target.common.mesh.Mesh;
 import org.osm2world.core.target.common.model.Model;
 import org.osm2world.core.target.common.model.ModelInstance;
@@ -51,7 +50,7 @@ public default List<Mesh> buildMeshesForModelHierarchy() {
 	/**
 	 * returns another world object this is part of, if any (e.g. a room is part of a building).
 	 * Parents are responsible for rendering their children, so only root objects (those returning null here)
-	 * will have their {@link Renderable#renderTo(org.osm2world.core.target.Target)} methods called.
+	 * will have their {@link #buildMeshes()} and {@link #getSubModels()} methods called directly.
 	 */
 	public default @Nullable WorldObject getParent() { return null; }
 
diff --git a/src/main/java/org/osm2world/core/world/modules/building/BuildingBottom.java b/src/main/java/org/osm2world/core/world/modules/building/BuildingBottom.java
index 7a5de65cc..e15316e52 100644
--- a/src/main/java/org/osm2world/core/world/modules/building/BuildingBottom.java
+++ b/src/main/java/org/osm2world/core/world/modules/building/BuildingBottom.java
@@ -12,11 +12,10 @@
 import org.osm2world.core.math.TriangleXZ;
 import org.osm2world.core.math.algorithms.TriangulationUtil;
 import org.osm2world.core.target.CommonTarget;
-import org.osm2world.core.target.Renderable;
 import org.osm2world.core.target.common.material.Material;
 
 /** the underside of a {@link BuildingPart} */
-class BuildingBottom implements Renderable {
+class BuildingBottom {
 
 	private final BuildingPart buildingPart;
 	private final Material material;
@@ -30,7 +29,6 @@ public BuildingBottom(BuildingPart buildingPart, Material material, PolygonWithH
 		this.floorHeight = floorHeight;
 	}
 
-	@Override
 	public void renderTo(CommonTarget target) {
 
 		double floorEle = buildingPart.building.getGroundLevelEle() + floorHeight - 0.01;
diff --git a/src/main/java/org/osm2world/core/world/modules/building/indoor/IndoorWall.java b/src/main/java/org/osm2world/core/world/modules/building/indoor/IndoorWall.java
index a8ef339dc..3bdd1bb2b 100644
--- a/src/main/java/org/osm2world/core/world/modules/building/indoor/IndoorWall.java
+++ b/src/main/java/org/osm2world/core/world/modules/building/indoor/IndoorWall.java
@@ -19,7 +19,6 @@
 import org.osm2world.core.math.*;
 import org.osm2world.core.math.algorithms.TriangulationUtil;
 import org.osm2world.core.target.CommonTarget;
-import org.osm2world.core.target.Renderable;
 import org.osm2world.core.target.common.material.Material;
 import org.osm2world.core.target.common.material.Materials;
 import org.osm2world.core.world.attachment.AttachmentSurface;
@@ -28,7 +27,7 @@
 
 import com.google.common.collect.Sets;
 
-public class IndoorWall implements Renderable {
+public class IndoorWall {
 
 	private final double straightnessTolerance = 0.001;
 	private final double wallThickness = 0.1;
@@ -961,7 +960,6 @@ private void renderTo(CommonTarget target, Boolean renderSides, Boolean attachme
 		}
 	}
 
-    @Override
     public void renderTo(CommonTarget target) {
     	renderTo(target, true, false);
     }
diff --git a/src/main/java/org/osm2world/core/world/modules/building/roof/Roof.java b/src/main/java/org/osm2world/core/world/modules/building/roof/Roof.java
index 5b02a2a8e..cc34e454f 100644
--- a/src/main/java/org/osm2world/core/world/modules/building/roof/Roof.java
+++ b/src/main/java/org/osm2world/core/world/modules/building/roof/Roof.java
@@ -19,7 +19,6 @@
 import org.osm2world.core.math.PolygonWithHolesXZ;
 import org.osm2world.core.math.VectorXZ;
 import org.osm2world.core.target.CommonTarget;
-import org.osm2world.core.target.Renderable;
 import org.osm2world.core.target.common.material.Material;
 import org.osm2world.core.world.attachment.AttachmentSurface;
 import org.osm2world.core.world.modules.building.BuildingPart;
@@ -71,8 +70,7 @@ public Collection<AttachmentSurface> getAttachmentSurfaces(double baseEle, int l
 	}
 
 	/**
-	 * renders the roof. The same as {@link Renderable#renderTo(CommonTarget)},
-	 * but it also needs the lower elevation of the roof (which is not yet known at construction time).
+	 * renders the roof. Needs the lower elevation of the roof (which is not yet known at construction time).
 	 */
 	public abstract void renderTo(CommonTarget target, double baseEle);