diff --git a/README.md b/README.md
index 4207eab..3cd380d 100644
--- a/README.md
+++ b/README.md
@@ -27,9 +27,18 @@ application/json
 Add these to the `Allowed file extensions`
 
 ```
-gltf, bin, json, obj, mtl
+gltf, glb
 ```
 
+### Usage
+
+* Create an item and upload a GLTF or GLB 3D image file.
+* Include and other assosiated files (if any) in the same item.
+
+### Background image
+An equirectangular image can be set as the background image.
+To activate this feature, add a file to the item called `sky-box-image` (png o jpg)
+
 ## LISENCE
 The module is released under the [MIT] License.
 
diff --git a/view/common/block-layout/render-3d.phtml b/view/common/block-layout/render-3d.phtml
index b1df5b1..7b92807 100644
--- a/view/common/block-layout/render-3d.phtml
+++ b/view/common/block-layout/render-3d.phtml
@@ -6,18 +6,6 @@ $this->headScript()->appendFile($this->assetUrl('js/height_calculator.js',
                                                   'Render3D'));
 ?>
 
-<script>
-console.log(<?= json_encode($urls, JSON_UNESCAPED_SLASHES) ?>)
-</script>
-
-<!--
-<style>
-	#<?= $id ?> {
-		height: <?= $height ?>px;
-		width: <?= $width ?>px;
-	}
-</style>
--->
 <style>
 model-viewer {
   width: 100%;