diff --git a/src/main.rs b/src/main.rs
index 656b002..a92e12d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -141,7 +141,7 @@ fn setup_cars(
     });
 
     let shapes = models.into_iter().map(|m| {
-        debug!("{:?}", m);
+        trace!("{:?}", m);
         meshes.add(m.bevy_mesh())
     });
 
diff --git a/src/support/brender/material.rs b/src/support/brender/material.rs
index 3b83dda..f08c462 100644
--- a/src/support/brender/material.rs
+++ b/src/support/brender/material.rs
@@ -223,7 +223,7 @@ impl Material {
             match mat {
                 Err(_) => break, // @fixme allow only Eof here
                 Ok(mat) => {
-                    debug!(".. Loaded {}", mat.material.identifier);
+                    trace!(".. Loaded {}", mat.material.identifier);
                     materials.push(mat)
                 }
             }
diff --git a/src/support/brender/model.rs b/src/support/brender/model.rs
index e177631..22abd93 100644
--- a/src/support/brender/model.rs
+++ b/src/support/brender/model.rs
@@ -206,7 +206,7 @@ impl Model {
             match m {
                 Err(_) => break, // fixme: allow only Eof here
                 Ok(m) => {
-                    debug!(".. Loaded {}", m.name);
+                    trace!(".. Loaded {}", m.name);
                     models.push(m)
                 }
             }
diff --git a/src/support/brender/pixelmap.rs b/src/support/brender/pixelmap.rs
index 46b8941..0693691 100644
--- a/src/support/brender/pixelmap.rs
+++ b/src/support/brender/pixelmap.rs
@@ -3,7 +3,7 @@ use {
     crate::support,
     byteorder::ReadBytesExt,
     culpa::{throw, throws},
-    log::debug,
+    log::trace,
     std::io::prelude::BufRead,
     support::brender::resource::file_type,
 };
@@ -61,9 +61,15 @@ impl FromStream for PixelMap {
                     pixelmap.origin_x = origin_x;
                     pixelmap.origin_y = origin_y;
 
-                    debug!(
+                    trace!(
                         "Pixelmap {} (type {}, row_bytes {}, {}x{} origin {}x{})",
-                        identifier, r#type, row_bytes, width, height, origin_x, origin_y
+                        identifier,
+                        r#type,
+                        row_bytes,
+                        width,
+                        height,
+                        origin_x,
+                        origin_y
                     );
                 }
                 Chunk::Pixels(PixelsChunk {
@@ -75,9 +81,10 @@ impl FromStream for PixelMap {
                     pixelmap.unit_bytes = unit_bytes;
                     pixelmap.data = data;
 
-                    debug!(
+                    trace!(
                         "Pixelmap data in {} units, {} bytes each",
-                        units, unit_bytes
+                        units,
+                        unit_bytes
                     );
                 }
                 Chunk::AddMap() => {}
diff --git a/src/support/brender/resource.rs b/src/support/brender/resource.rs
index 5cf157a..d734add 100644
--- a/src/support/brender/resource.rs
+++ b/src/support/brender/resource.rs
@@ -33,6 +33,60 @@ pub trait FromStreamExt {
     ) -> Result<Self::Output, Error>;
 }
 
+struct ChunkType(u32);
+
+impl std::fmt::Display for ChunkType {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(
+            f,
+            "{}",
+            match self.0 {
+                chunk::END => "END",
+                chunk::PIXELMAP => "PIXELMAP",
+                chunk::MATERIAL => "MATERIAL",
+                chunk::ANIM => "ANIM",
+                chunk::ANIM_TRANSFORM => "ANIM_TRANSFORM",
+                chunk::ANIM_RATE => "ANIM_RATE",
+                chunk::FILE_INFO => "FILE_INFO",
+                chunk::PIVOT => "PIVOT",
+                chunk::MATERIAL_INDEX => "MATERIAL_INDEX",
+                chunk::VERTICES => "VERTICES",
+                chunk::VERTEX_UV => "VERTEX_UV",
+                chunk::FACE_MATERIAL => "FACE_MATERIAL",
+                chunk::COLOUR_MAP_REF => "COLOUR_MAP_REF",
+                chunk::INDEX_BLEND_REF => "INDEX_BLEND_REF",
+                chunk::INDEX_SHADE_REF => "INDEX_SHADE_REF",
+                chunk::SCREENDOOR_REF => "SCREENDOOR_REF",
+                chunk::PIXELS => "PIXELS",
+                chunk::ADD_MAP => "ADD_MAP",
+                chunk::ACTOR => "ACTOR",
+                chunk::ACTOR_MODEL => "ACTOR_MODEL",
+                chunk::ACTOR_TRANSFORM => "ACTOR_TRANSFORM",
+                chunk::ACTOR_MATERIAL => "ACTOR_MATERIAL",
+                chunk::ACTOR_LIGHT => "ACTOR_LIGHT",
+                chunk::ACTOR_CAMERA => "ACTOR_CAMERA",
+                chunk::ACTOR_BOUNDS => "ACTOR_BOUNDS",
+                chunk::ACTOR_ADD_CHILD => "ACTOR_ADD_CHILD",
+                chunk::TRANSFORM_MATRIX34 => "TRANSFORM_MATRIX34",
+                chunk::TRANSFORM_MATRIX34_LP => "TRANSFORM_MATRIX34_LP",
+                chunk::TRANSFORM_QUAT => "TRANSFORM_QUAT",
+                chunk::TRANSFORM_EULER => "TRANSFORM_EULER",
+                chunk::TRANSFORM_LOOK_UP => "TRANSFORM_LOOK_UP",
+                chunk::TRANSFORM_TRANSLATION => "TRANSFORM_TRANSLATION",
+                chunk::TRANSFORM_IDENTITY => "TRANSFORM_IDENTITY",
+                chunk::BOUNDS => "BOUNDS",
+                chunk::LIGHT => "LIGHT",
+                chunk::CAMERA => "CAMERA",
+                chunk::FACES => "FACES",
+                chunk::MODEL => "MODEL",
+                chunk::ACTOR_CLIP_PLANE => "ACTOR_CLIP_PLANE",
+                chunk::PLANE => "PLANE",
+                _ => "UNKNOWN",
+            }
+        )
+    }
+}
+
 //------------------------------------------------------------------
 /// A binary resource file consisting of chunks with specific size.
 /// Reading from such file yields array of chunk results, some of
@@ -50,9 +104,11 @@ impl FromStream for ChunkHeader {
     fn from_stream<R: ReadBytesExt>(source: &mut R) -> Self::Output {
         let chunk_type = source.read_u32::<BigEndian>()?;
         let size = source.read_u32::<BigEndian>()?;
-        debug!(
-            "Loaded chunk type {chunk_type}/0x{:x} size {}",
-            chunk_type, size
+        trace!(
+            "Loaded chunk type {chunk_type}/0x{:x} {} size {}",
+            chunk_type,
+            ChunkType(chunk_type),
+            size
         );
         Self::Output { chunk_type, size }
     }
diff --git a/src/support/render_manager.rs b/src/support/render_manager.rs
index a6bd492..1e6e6ec 100644
--- a/src/support/render_manager.rs
+++ b/src/support/render_manager.rs
@@ -28,12 +28,12 @@ pub struct RenderManager {
     program: Program,
 }
 
-fn debug_tree(name: &String, actor_name: &String, stack: &[Matrix4<f32>]) {
-    debug!("{} for {}: stack depth {}", name, actor_name, stack.len());
-    for x in stack.iter().rev() {
-        debug!(".. {:?}", x);
-    }
-}
+// fn debug_tree(name: &String, actor_name: &String, stack: &[Matrix4<f32>]) {
+//     debug!("{} for {}: stack depth {}", name, actor_name, stack.len());
+//     for x in stack.iter().rev() {
+//         debug!(".. {:?}", x);
+//     }
+// }
 
 // Load VertexBuffer
 // Load IndexBuffers for each material