diff --git a/blade-render/code/debug.inc.wgsl b/blade-render/code/debug.inc.wgsl
index 5a2e4382..00ec256f 100644
--- a/blade-render/code/debug.inc.wgsl
+++ b/blade-render/code/debug.inc.wgsl
@@ -12,6 +12,8 @@ struct DebugVariance {
     count: u32,
 }
 struct DebugEntry {
+    custom_index: u32,
+    depth: f32,
     tex_coords: vec2<f32>,
     base_color_texture: u32,
     normal_texture: u32,
diff --git a/blade-render/code/fill-gbuf.wgsl b/blade-render/code/fill-gbuf.wgsl
index 4f777903..0c53e56b 100644
--- a/blade-render/code/fill-gbuf.wgsl
+++ b/blade-render/code/fill-gbuf.wgsl
@@ -124,6 +124,8 @@ fn main(@builtin(global_invocation_id) global_id: vec3<u32>) {
 
         let hit_position = camera.position + intersection.t * ray_dir;
         if (enable_debug) {
+            debug_buf.entry.custom_index = intersection.instance_custom_index;
+            debug_buf.entry.depth = intersection.t;
             debug_buf.entry.tex_coords = tex_coords;
             debug_buf.entry.base_color_texture = entry.base_color_texture;
             debug_buf.entry.normal_texture = entry.normal_texture;
diff --git a/blade-render/src/render/mod.rs b/blade-render/src/render/mod.rs
index 34b06759..c9b13671 100644
--- a/blade-render/src/render/mod.rs
+++ b/blade-render/src/render/mod.rs
@@ -105,6 +105,8 @@ impl Default for PostProcConfig {
 pub struct SelectionInfo {
     pub std_deviation: mint::Vector3<f32>,
     pub std_deviation_history: u32,
+    pub custom_index: u32,
+    pub depth: f32,
     pub tex_coords: mint::Vector2<f32>,
     pub base_color_texture: Option<blade_asset::Handle<crate::Texture>>,
     pub normal_texture: Option<blade_asset::Handle<crate::Texture>>,
@@ -114,6 +116,8 @@ impl Default for SelectionInfo {
         Self {
             std_deviation: [0.0; 3].into(),
             std_deviation_history: 0,
+            custom_index: 0,
+            depth: 0.0,
             tex_coords: [0.0; 2].into(),
             base_color_texture: None,
             normal_texture: None,
@@ -135,6 +139,8 @@ struct DebugVariance {
 #[repr(C)]
 #[derive(Debug)]
 struct DebugEntry {
+    custom_index: u32,
+    depth: f32,
     tex_coords: [f32; 2],
     base_color_texture: u32,
     normal_texture: u32,
@@ -1537,6 +1543,8 @@ impl Renderer {
                 }
             },
             std_deviation_history: db_v.count,
+            custom_index: db_e.custom_index,
+            depth: db_e.depth,
             tex_coords: db_e.tex_coords.into(),
             base_color_texture: self
                 .texture_resource_lookup
diff --git a/examples/scene/main.rs b/examples/scene/main.rs
index 4df0c2dc..daf83d7a 100644
--- a/examples/scene/main.rs
+++ b/examples/scene/main.rs
@@ -497,6 +497,13 @@ impl Example {
                             ui.colored_label(egui::Color32::WHITE, format!("2^{}", power));
                             self.need_accumulation_reset |= ui.button("Reset").clicked();
                         });
+                        ui.horizontal(|ui| {
+                            ui.label("Depth:");
+                            ui.colored_label(
+                                egui::Color32::WHITE,
+                                format!("{:.2}", selection.depth),
+                            );
+                        });
                         ui.horizontal(|ui| {
                             ui.label("Texture coords:");
                             ui.colored_label(