diff --git a/egui_glium/src/painter.rs b/egui_glium/src/painter.rs
index e5dc378d17c..e190171a5a4 100644
--- a/egui_glium/src/painter.rs
+++ b/egui_glium/src/painter.rs
@@ -25,8 +25,8 @@ pub struct Painter {
     /// Index is the same as in [`egui::TextureId::User`].
     user_textures: HashMap<u64, Rc<SrgbTexture2d>>,
 
-    // TODO: 128-bit texture space?
-    next_native_tex_id: u64,
+    #[cfg(feature = "epi")]
+    next_native_tex_id: u64, // TODO: 128-bit texture space?
 }
 
 impl Painter {
@@ -57,6 +57,7 @@ impl Painter {
             egui_texture: None,
             egui_texture_version: None,
             user_textures: Default::default(),
+            #[cfg(feature = "epi")]
             next_native_tex_id: 1 << 32,
         }
     }
@@ -222,6 +223,7 @@ impl Painter {
 
     // ------------------------------------------------------------------------
 
+    #[cfg(feature = "epi")]
     pub fn set_texture(
         &mut self,
         facade: &dyn glium::backend::Facade,
diff --git a/egui_glow/src/misc_util.rs b/egui_glow/src/misc_util.rs
index 6d527ed6105..0ce12000bee 100644
--- a/egui_glow/src/misc_util.rs
+++ b/egui_glow/src/misc_util.rs
@@ -1,8 +1,6 @@
 #![allow(unsafe_code)]
 use glow::HasContext;
 use std::option::Option::Some;
-#[cfg(target_arch = "wasm32")]
-use wasm_bindgen::JsValue;
 
 pub(crate) fn srgbtexture2d(
     gl: &glow::Context,
diff --git a/egui_glow/src/painter.rs b/egui_glow/src/painter.rs
index 0c848094cef..1a45281d441 100644
--- a/egui_glow/src/painter.rs
+++ b/egui_glow/src/painter.rs
@@ -41,8 +41,10 @@ pub struct Painter {
 
     /// Index is the same as in [`egui::TextureId::User`].
     user_textures: HashMap<u64, glow::Texture>,
-    // TODO: 128-bit texture space?
-    next_native_tex_id: u64,
+
+    #[cfg(feature = "epi")]
+    next_native_tex_id: u64, // TODO: 128-bit texture space?
+
     /// Stores outdated OpenGL textures that are yet to be deleted
     textures_to_destroy: Vec<glow::Texture>,
 
@@ -192,6 +194,7 @@ impl Painter {
                 vertex_buffer,
                 element_array_buffer,
                 user_textures: Default::default(),
+                #[cfg(feature = "epi")]
                 next_native_tex_id: 1 << 32,
                 textures_to_destroy: Vec::new(),
                 destroyed: false,
@@ -386,6 +389,7 @@ impl Painter {
 
     // ------------------------------------------------------------------------
 
+    #[cfg(feature = "epi")]
     pub fn set_texture(&mut self, gl: &glow::Context, tex_id: u64, image: &epi::Image) {
         self.assert_not_destroyed();
 
diff --git a/egui_web/src/webgl1.rs b/egui_web/src/webgl1.rs
index db7751fc2db..39cba041edb 100644
--- a/egui_web/src/webgl1.rs
+++ b/egui_web/src/webgl1.rs
@@ -34,8 +34,7 @@ pub struct WebGlPainter {
     /// Index is the same as in [`egui::TextureId::User`].
     user_textures: HashMap<u64, WebGlTexture>,
 
-    // TODO: 128-bit texture space?
-    next_native_tex_id: u64,
+    next_native_tex_id: u64, // TODO: 128-bit texture space?
 }
 
 impl WebGlPainter {
diff --git a/egui_web/src/webgl2.rs b/egui_web/src/webgl2.rs
index e774f984973..207bc833e42 100644
--- a/egui_web/src/webgl2.rs
+++ b/egui_web/src/webgl2.rs
@@ -34,8 +34,7 @@ pub struct WebGl2Painter {
     /// Index is the same as in [`egui::TextureId::User`].
     user_textures: HashMap<u64, WebGlTexture>,
 
-    // TODO: 128-bit texture space?
-    next_native_tex_id: u64,
+    next_native_tex_id: u64, // TODO: 128-bit texture space?
 }
 
 impl WebGl2Painter {
diff --git a/epi/src/lib.rs b/epi/src/lib.rs
index 3dbcd86f903..436041b0ff1 100644
--- a/epi/src/lib.rs
+++ b/epi/src/lib.rs
@@ -419,11 +419,10 @@ pub trait NativeTexture {
     /// The native texture type.
     type Texture;
 
-    /// Bind native texture to egui texture
+    /// Bind native texture to an egui texture id.
     fn register_native_texture(&mut self, native: Self::Texture) -> egui::TextureId;
 
-    /// Change id's actual pointing texture
-    /// only for user texture
+    /// Change what texture the given id refers to.
     fn replace_native_texture(&mut self, id: egui::TextureId, replacing: Self::Texture);
 }