diff --git a/Cargo.lock b/Cargo.lock
index eebf635..855d0fc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -6853,6 +6853,7 @@ dependencies = [
  "three-d",
  "three-d-asset",
  "tracing",
+ "tracing-subscriber",
  "tracing-wasm",
  "wasm-bindgen",
  "wasm-bindgen-futures",
diff --git a/crates/polymodel-renderer-worker/Cargo.toml b/crates/polymodel-renderer-worker/Cargo.toml
index cb51033..1d9fe36 100644
--- a/crates/polymodel-renderer-worker/Cargo.toml
+++ b/crates/polymodel-renderer-worker/Cargo.toml
@@ -63,6 +63,7 @@ png = "0.18"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 three-d = { version = "0.19.0", default-features = false, features = ["window"] }
+tracing-subscriber = { version = "0.3", default-features = false, features = ["std", "fmt"] }
 winit = "0.28.7"
 
 [dev-dependencies]
diff --git a/crates/polymodel-renderer-worker/src/bin/ldraw_preview.rs b/crates/polymodel-renderer-worker/src/bin/ldraw_preview.rs
index 785a585..28e3120 100644
--- a/crates/polymodel-renderer-worker/src/bin/ldraw_preview.rs
+++ b/crates/polymodel-renderer-worker/src/bin/ldraw_preview.rs
@@ -98,6 +98,11 @@ impl PickerInput {
 
 #[cfg(not(target_arch = "wasm32"))]
 fn main() {
+    let _ = tracing_subscriber::fmt()
+        .with_max_level(tracing::Level::DEBUG)
+        .with_writer(std::io::stderr)
+        .try_init();
+
     let args = env::args().skip(1).collect::<Vec<_>>();
     if args.iter().any(|arg| arg == "--help") {
         println!(