diff --git a/crates/renderling/src/lib.rs b/crates/renderling/src/lib.rs
index c97d2451..b0959ff8 100644
--- a/crates/renderling/src/lib.rs
+++ b/crates/renderling/src/lib.rs
@@ -1011,7 +1011,7 @@ mod test {
     // spheres with different metallic roughnesses lit by an environment map.
     //
     // see https://learnopengl.com/PBR/Lighting
-    fn gltf_pbr_metallic_roughness_spheres() {
+    fn pbr_metallic_roughness_spheres() {
         let ss = 600;
         let mut r =
             Renderling::headless(ss, ss).with_background_color(Vec3::splat(0.0).extend(1.0));
@@ -1088,95 +1088,9 @@ mod test {
         let hdr_image = SceneImage::from_hdr_path("../../img/hdr/resting_place.hdr").unwrap();
         let skybox = crate::skybox::Skybox::new(&device, &queue, hdr_image, camera);
         stage.set_skybox(skybox);
-        stage.set_has_bloom(true);
 
         let img = r.render_image().unwrap();
-        img_diff::assert_img_eq("pbr_metallic_roughness_spheres.png", img);
-    }
-
-    #[test]
-    // Tests the initial implementation of pbr metallic roughness on an array of
-    // spheres with different metallic roughnesses lit by an environment map.
-    //
-    // see https://learnopengl.com/PBR/Lighting
-    fn legacy_pbr_metallic_roughness_spheres() {
-        let ss = 600;
-        let mut r =
-            Renderling::headless(ss, ss).with_background_color(Vec3::splat(0.0).extend(1.0));
-
-        let radius = 0.5;
-        let mut icosphere = icosahedron::Polyhedron::new_isocahedron(radius, 5);
-        icosphere.compute_triangle_normals();
-        let icosahedron::Polyhedron {
-            positions,
-            normals,
-            cells,
-            ..
-        } = icosphere;
-        log::info!("icosphere created");
-
-        let to_vertex = |ndx: &usize| -> Vertex {
-            let p: [f32; 3] = positions[*ndx].0.into();
-            let n: [f32; 3] = normals[*ndx].0.into();
-            Vertex::default().with_position(p).with_normal(n)
-        };
-        let sphere_vertices = cells.iter().flat_map(|icosahedron::Triangle { a, b, c }| {
-            let p0 = to_vertex(&a);
-            let p1 = to_vertex(&b);
-            let p2 = to_vertex(&c);
-            vec![p0, p1, p2]
-        });
-
-        let ss = ss as f32;
-        let projection = camera::perspective(ss, ss);
-        let k = 7;
-        let diameter = 2.0 * radius;
-        let spacing = radius * 0.25;
-        let len = (k - 1) as f32 * (diameter + spacing);
-        let half = len / 2.0;
-        let view = camera::look_at(
-            Vec3::new(half, half, 1.6 * len),
-            Vec3::new(half, half, 0.0),
-            Vec3::Y,
-        );
-
-        let mut builder = r
-            .new_scene()
-            .with_camera(projection, view)
-            .with_skybox_image_from_path("../../img/hdr/resting_place.hdr");
-        let (start, count) = builder.add_meshlet(sphere_vertices);
-
-        for i in 0..k {
-            let roughness = i as f32 / (k - 1) as f32;
-            let x = (diameter + spacing) * i as f32;
-            for j in 0..k {
-                let metallic = j as f32 / (k - 1) as f32;
-                let y = (diameter + spacing) * j as f32;
-                let material_id = builder.add_material(PbrMaterial {
-                    albedo_factor: Vec4::new(1.0, 1.0, 1.0, 1.0),
-                    metallic_factor: metallic,
-                    roughness_factor: roughness,
-                    ..Default::default()
-                });
-                let _entity = builder
-                    .new_entity()
-                    .with_starting_vertex_and_count(start, count)
-                    .with_material(material_id)
-                    .with_position([x, y, 0.0])
-                    .build();
-            }
-        }
-
-        let scene = builder.build().unwrap();
-        r.setup_render_graph(RenderGraphConfig {
-            scene: Some(scene),
-            with_screen_capture: true,
-            with_bloom: false,
-            ..Default::default()
-        });
-
-        let img = r.render_image().unwrap();
-        img_diff::assert_img_eq("pbr_metallic_roughness_spheres.png", img);
+        img_diff::assert_img_eq("pbr/metallic_roughness_spheres.png", img);
     }
 
     #[test]
diff --git a/test_img/pbr/metallic_roughness_spheres.png b/test_img/pbr/metallic_roughness_spheres.png
new file mode 100644
index 00000000..b2fa23b3
Binary files /dev/null and b/test_img/pbr/metallic_roughness_spheres.png differ
diff --git a/test_img/pbr_metallic_roughness_spheres.png b/test_img/pbr_metallic_roughness_spheres.png
deleted file mode 100644
index 7949927e..00000000
Binary files a/test_img/pbr_metallic_roughness_spheres.png and /dev/null differ