diff --git a/crates/polymodel-renderer-worker/src/worker.rs b/crates/polymodel-renderer-worker/src/worker.rs
index bfe34b2..0d3c8a5 100644
--- a/crates/polymodel-renderer-worker/src/worker.rs
+++ b/crates/polymodel-renderer-worker/src/worker.rs
@@ -202,9 +202,6 @@ fn parse_compound_source(
     Ok((stats, scene, source.resources))
 }
 
-const WORKER_ID: u64 = 1;
-const INITIAL_CANVAS_ATTACHMENTS: u64 = 2;
-const INITIAL_CANVAS_SAMPLES: u64 = 1;
 const MAX_UNKNOWN_FETCH_BYTES: u64 = 128 * 1024 * 1024;
 
 fn next_generation(current: u32) -> Result<u32, &'static str> {
@@ -1272,8 +1269,6 @@ fn handle_load_mesh(
         previous.controller.abort();
     }
     let state_clone = state.clone();
-    let load_epoch = identity.load_epoch;
-    let scene_generation = state.borrow().scene_generation;
     spawn_local(async move {
         let result = load_mesh_async_with_verification(
             &primary_url,
@@ -2198,8 +2193,6 @@ fn handle_render_preview_image(
     let state_clone = state.clone();
     spawn_local(async move {
         let result = render_preview_request(
-            &state_clone,
-            identity,
             format,
             &primary_url,
             width.max(1),
@@ -2231,8 +2224,6 @@ fn handle_render_preview_image(
 }
 
 async fn render_preview_request(
-    state: &Rc<RefCell<WorkerState>>,
-    identity: LoadIdentity,
     format: MeshFormat,
     primary_url: &str,
     width: u32,