Add sketches to comments on 2D images and 3D models

When reviewing a 2D image (.psd, .jpg, .png, .bmp, and .webp) or a 3D model (.fbx, .glb and .gltf), you can draw sketches on it to annotate the specific area you are commenting on. For example, if you are reviewing a character asset and want to change the eye color, you can add a comment instructing the artist to change the eye color and use the pen tool to circle the eye to change on the asset.

On this page:

Add sketches to comments on 2D images

Add sketches to comments on 2D image assets

Open the asset in a project. See Browse projects.
Click Comments to view existing comments, including the user who commented and when. To learn more about changing the comments shown and the asset view, see View comments.

If the right panel is hidden, click the Show right panel button at the bottom of the panel.
To sketch on a previous asset version, select the version to comment on in the list next to the asset filename. Comments are applied to the current version of the asset by default.
Click Sketch next to the comment to enable sketch mode.

When in sketch mode, comments and sketches on the asset are not shown. If there are unsaved sketch changes on the asset, the vertical ellipsis button is not available.

To leave sketch mode, click the enabled Sketch button in the comment. If you sketched on the asset and leave sketch mode or the asset page, you are prompted to discard your sketches. No undo is available. Click Discard to discard any sketches or Keep editing to continue sketching.
In the sketch toolbar, click or select a tool to use to sketch on the asset. See Sketch toolbar.
When you finish adding a sketch, enter a comment to associate with the sketch.

If you do not enter a comment, when you click Add in the comment, (Sketch on asset preview) is shown as the comment.
Click Add.

Your comment and sketch are added to the Comments tab. You can hide and show sketches on comments to see the 2D image more clearly. See Hide and show sketches

Add sketches to comments on 2D images in an asset bundle

Open a 2D image in an asset bundle in a project. See Browse projects.
Click Comments to view existing comments, including the user who commented and when. To learn more about changing the comments shown and the asset view, see View comments.

If the right panel is hidden, click the Show right panel button at the bottom of the panel.
Click Sketch next to the comment to enable sketch mode.

When in sketch mode, comments and sketches on the 2D image are not shown. If there are unsaved sketch changes on the asset, the vertical ellipsis button is not available.

To leave sketch mode, click the enabled Sketch button in the comment. If you sketched on the asset and leave sketch mode or the asset page, you are prompted to discard your sketches. No undo is available. Click Discard to discard any sketches or Keep editing to continue sketching.
In the sketch toolbar, click or select a tool to use to sketch on the 2D image. See Sketch toolbar.
When you finish adding a sketch, enter a comment to associate with the sketch.

If you do not enter a comment, when you click Add in the comment, (Sketch on asset preview) is shown as the comment.
Click Add.

Your comment and sketch are added to the Comments tab. You can hide and show sketches on comments to see the 2D image more clearly. See Hide and show sketches

Add sketches to comments on 2D images in an asset bundle review

Open a 2D image in an asset bundle review in a project. See Browse projects.
Click Review Comments, existing comments are shown, including the user who commented and when. To learn more about changing the comments shown and the asset view, see View comments.

If the right panel is hidden, click the Show right panel button at the bottom of the panel.
Click Sketch next to the comment to enable sketch mode.

When in sketch mode, comments and sketches on the 2D image are not shown. If there are unsaved sketch changes on the asset, the vertical ellipsis button is not available.

To leave sketch mode, click the enabled Sketch button in the comment. If you sketched on the asset and leave sketch mode or the asset page, you are prompted to discard your sketches. No undo is available. Click Discard to discard any sketches or Keep editing to continue sketching.
In the sketch toolbar, click or select a tool to use to sketch on the 2D image. See Sketch toolbar.
When you finish adding a sketch, enter a comment to associate with the sketch.

If you do not enter a comment, when you click Add in the comment, (Sketch on asset preview) is shown as the comment.
Click Add.

Your comment and sketch are added to the Review comments tab. You can hide and show sketches on comments to see the 2D image more clearly. See Hide and show sketches

Hide and show sketches

To hide all sketches, click the Show/hide sketches on image button on the canvas toolbar. If you hide all sketches, but show specific sketches on comments, a blue dot is shown on the button to indicate that some sketches are shown.
To show a specific sketch, click the Show sketch on asset preview button in the associated comment. To hide the sketch, click the Hide sketch on asset preview button .
To show all hidden sketches, click the Show/hide sketches on image button on the canvas toolbar.

Add sketches to comments on 3D models

Add sketches to comments on 3D model assets

The current view of the 3D model is added to your comment when you click the Add a comment field.

Open the asset in a project. See Browse projects.
Click Comments to view existing comments, including the user who commented and when. To learn more about changing the comments shown and the asset view, see View comments.

If the right panel is hidden, click the Show right panel button at the bottom of the panel.
To sketch on a previous asset version, select the version to comment on in the list next to the asset filename. Comments are applied to the current version of the asset by default.
Adjust the asset view to the position you want to show in your comment. Once you start sketching, you cannot change the view.
- If the model has a skeleton (also known as rigging) and you want to show it in your comment, click Viewer settings and toggle Skeleton on.
- If it is an animated model, click Viewer settings, select the animation to lock, and pause it at the time stamp you want to show in your comment.
Click Sketch next to the comment to enable sketch mode.

To leave sketch mode, click the enabled Sketch button in the comment. If you sketched on the asset and leave sketch mode or the asset page, you are prompted to discard your sketches. No undo is available. Click Discard to discard any sketches or Keep editing to continue sketching.
In the sketch toolbar, click or select a tool to use to sketch on the asset. See Sketch toolbar.
When you finish adding a sketch, enter a comment to associate with the sketch.
If the asset view changed before you drew your sketch, click Update lock below the comment to lock the current view to the comment.
Click Add.

Your comment is added to the Comments tab and your sketch is added to the comment as a .webp image attachment.

To delete a sketch after you have added it to a comment, click the sketch file attachment on the comment to open it and click Delete attachment above the image.

Add sketches to comments on 3D models in an asset bundle

The current view of the 3D model is added to your comment when you click the Add a comment field.

Open a 3D model in an asset bundle in a project. See Browse projects.
Click Comments to view existing comments, including the user who commented and when. To learn more about changing the comments shown and the asset view, see View comments.

If the right panel is hidden, click the Show right panel button at the bottom of the panel.
Adjust the 3D model view to the position you want to show in your comment. Once you start sketching, you cannot change the view.
- If the model has a skeleton (also known as rigging) and you want to show it in your comment, click Viewer settings and toggle Skeleton on.
- If it is an animated model, click Viewer settings, select the animation to lock, and pause it at the time stamp you want to show in your comment.
Click Sketch next to the comment to enable sketch mode.

To leave sketch mode, click the enabled Sketch button in the comment. If you sketched on the asset and leave sketch mode or the asset page, you are prompted to discard your sketches. No undo is available. Click Discard to discard any sketches or Keep editing to continue sketching.
In the sketch toolbar, click or select a tool to use to sketch on the asset. See Sketch toolbar.
When you finish adding a sketch, enter a comment to associate with the sketch.
If the 3D model view changed before you drew your sketch, click Update lock below the comment to lock the current view to the comment.
Click Add.

Your comment is added to the Comments tab and your sketch is added to the comment as a .webp image attachment.

To delete a sketch after you have added it to a comment, click the sketch file attachment on the comment to open it and click Delete attachment above the image.

Add sketches to comments on 3D models in an asset bundle review

The current view of the 3D model is added to your comment when you click the Add a comment field.

Open a 3D model in an asset bundle review in a project. See Browse projects.
Click Review Comments, existing comments are shown, including the user who commented and when. To learn more about changing the comments shown and the asset view, see View comments.

If the right panel is hidden, click the Show right panel button at the bottom of the panel.
Adjust the 3D model view to the position you want to show in your comment. Once you start sketching, you cannot change the view.
- If the model has a skeleton (also known as rigging) and you want to show it in your comment, click Viewer settings and toggle Skeleton on.
- If it is an animated model, click Viewer settings, select the animation to lock, and pause it at the time stamp you want to show in your comment.
Click Sketch next to the comment to enable sketch mode.

To leave sketch mode, click the enabled Sketch button in the comment. If you sketched on the asset and leave sketch mode or the asset page, you are prompted to discard your sketches. No undo is available. Click Discard to discard any sketches or Keep editing to continue sketching.
In the sketch toolbar, click or select a tool to use to sketch on the asset. See Sketch toolbar.
When you finish adding a sketch, enter a comment to associate with the sketch.
If the 3D model view changed before you drew your sketch, click Update lock below the comment to lock the current view to the comment.
Click Add.

Your comment is added to the Review Comments tab and your sketch is added to the comment as a .webp image attachment.

To delete a sketch after you have added it to a comment, click the sketch file attachment on the comment to open it and click Delete attachment above the image.

Sketch toolbar

Button	Name	Description
	Pen	Draw freeform on the asset
	Highlighter	Highlight an area of the asset
	Eraser	Erase a specific sketch. Click a sketch to erase it.
	Shape: Line, Rectangle, Ellipse, or Arrow	Draw a shape on the asset
	Color	Select the color of the sketch
	Size	Select the size of the lines in the sketch
	Clear all	Clear all sketches on the asset