PackCAD Mockup User Interface

PackCAD Mockup is an online tool that converts flat designs and dielines into realistic 3D packaging mockups. This guide walks through the app’s layout, menus, and key controls.

The Main Layout

The interface is organized into four main areas:

• Header - The top bar with Preferences ( ), File and View menus, and Account controls.
• Left Menu - A vertical list of operations that define your project, from importing a dieline through folding.
• 2D and 3D Views - The center of the screen, where you see your dieline and folded model.
• Detail Menus - When you select an operation in the left menu, its detail menu appears on the right side of the screen with controls for that step.

Header

Preferences

Click in the header to open the Preferences menu. Preferences let you set defaults that persist across sessions. Settings changed elsewhere in the app (e.g., adjusting the view layout or thickness from a detail menu) are temporary and will reset on your next visit. To make a setting persistent, set it here.

The Preferences menu is organized into four sections:

• General - Toggle Dark Mode and set the default Units (in, mm, or cm).
• View - Set defaults for View Layout, Panel Color Mode, and Edge Color Mode; toggle the visibility of Ground Plane Pro, Shadow Pro, and Origin Pro; and set the Background Color Pro.
• Material & Thickness - Set the default Material type, Flute Size and Flute Angle (for corrugated cardboard), Thickness, and thickness Offset Direction.
• Camera - Set the default Camera Type (Perspective or Orthographic) and FOV (field of view, for perspective cameras).

Preferences are saved locally on your device and won’t sync across different devices or browsers. Each setting you’ve changed shows a small reset button ( ) next to it, and when anything differs from its default, a Restore Defaults button appears at the top of the menu to reset everything at once.

File Menu

The File menu contains project and export actions:

• New Project - Start a fresh project.
• Open Project... - Load a previously saved project file (JSON).
• Save Project (Ctrl/Command + S) - Save your current project as a JSON file.
• Export 3D Model... Pro - Export your folded design as a 3D file (glTF, GLB, OBJ, or HTML).
• Export Screenshot... Pro - Export a high-resolution screenshot of your 3D model.
• Render... - Create a photorealistic rendering of your packaging. See the Photorealistic Rendering guide.

View Menu

The View menu controls how your design is displayed:

• View Layout - Switch between Folded Model (3D focused), Dieline (2D focused), Split Horizontally, and Split Vertically. You can also use the 2 and 3 hotkeys for the dieline and folded model views.
• Panel Color Mode - Choose how panels are colored: Artwork (shows your uploaded print graphics), White, or Multicolor (each panel a different color, useful for verifying your dieline was parsed correctly).
• Edge Color Mode - Choose how fold and cut lines are displayed: Mountain / Valley (creases are colored red or blue based on their fold direction and angle; cut lines are black), Black (cut lines are solid, fold lines are dashed), or Hidden (don’t render crease or cut lines).
• 3D View - Toggle the visibility of the Ground Plane Pro, Shadow Pro, and Origin Pro. Open Camera Settings..., or set a custom Background Color… Pro.
• Dark Mode - Toggle between light and dark themes.

Other Header Controls

On the right side of the header, you’ll find:

• What’s New - View the changelog. A green dot appears when there are unread updates.
• Docs - Opens the documentation site.
• Feedback ( ) - Send feedback or report an issue.
• Account - Sign in, view your subscription, or manage your account.

Left Menu

The left menu lists the operations that make up your project. Operations are applied in order from top to bottom, and each one transforms your design in some way. They’re organized into three collapsible sections — Setup, Folding Simulation, and Postprocessing. Click a section heading to collapse or expand it. The Folding Simulation and Postprocessing sections start collapsed and open automatically once you import a dieline.

The Setup section defines your physical package:

1. Import Dieline - Upload your dieline SVG file.
2. Material & Thickness - Choose a material type and thickness.
3. Artwork - Upload exterior and interior artwork (PNG/JPG).

The Folding Simulation section folds it into 3D shape:

4. Folding Setup - Select the bottom panel and (optional) origin point.
5. Folding Keyframes - Define fold angles and build a folding animation. You can add multiple keyframes using Add Keyframe at the bottom. Click in the section heading to replay the folding animation (R hotkey).

The Postprocessing section turns your folded mockup into final imagery:

6. Render - Open the Render tool to create photorealistic renderings of your packaging. Saved renders appear as a small thumbnail stack on this item. See the Photorealistic Rendering guide.

Click any operation to select it and open its detail menu on the right (the Render tool opens as a full-screen view instead). See Getting Started for a full walkthrough of these steps.

Enable / Disable

The Artwork operation and individual Folding Keyframes can be toggled on and off. Hover to reveal the visibility toggle ( ), then click to disable the operation ( ) and temporarily remove its effect from the design without deleting it. Click again to re-enable.

Reordering Keyframes

Folding keyframes can be reordered by grabbing the grip ( ) and dragging them to a new position. Keyframes are applied sequentially, so their order determines the folding animation sequence.

Detail Menus

When you select an operation in the left menu, its detail menu appears on the right side of the screen. Each detail menu contains the settings and controls specific to that operation.

For example:

• The Import Dieline detail menu shows the uploaded file, dimensions, and unit settings. Click Dieline Inspector... to review how your cut and crease lines were parsed.
• The Material & Thickness detail menu lets you choose a material type, set a thickness value, and control the offset direction.
• The Artwork detail menu lets you upload and manage exterior and interior artwork files. Use to swap the interior and exterior artwork, or open a file’s menu to mirror, download, or delete it.
• The Folding Setup detail menu is where you select the bottom panel. Expand Advanced Options to also set an optional origin point.
• The Folding Keyframe detail menu contains simulation controls and fold angle constraints. See 3D Packaging Folding Animation for a detailed guide.

Alerts

If an operation has errors or warnings, an alert badge appears on the operation in the left menu and on the upper-left corner of its detail menu. Click the badge to see the error/warning messages.

2D and 3D Views

The center of the screen shows your design in 2D (the flat dieline) and 3D (the folded model). There are four view layouts, controlled from the View menu or keyboard shortcuts:

• Folded Model (3 hotkey) — 3D view fills the screen, with a small 2D picture-in-picture in the corner.
• Dieline (2 hotkey) — 2D view fills the screen, with a small 3D picture-in-picture in the corner.
• Split Horizontally - 3D on the left, 2D on the right.
• Split Vertically - 3D on top, 2D on bottom.

Picture-in-Picture

In the Folded Model and Dieline layouts, the smaller view appears as a picture-in-picture window in the bottom-left corner. Click it to quickly swap which view is focused (or use the 3 and 2 hotkeys). You can also hide the picture-in-picture window and restore it later using the toggle button.

3D View Controls

A small toolbar appears in the top-left of the 3D view containing the following controls:

• Center 3D View - Reset the center/zoom of the camera to fit your model.
• Ground Plane Pro - Toggle the ground plane grid visibility (z = 0).
• Shadow Pro - Toggle the shadow visibility beneath your model.
• Origin Pro - Toggle the origin indicator visibility (x = 0, y = 0, z = 0).

Camera interaction: Click and drag to orbit, scroll to zoom, and right-click and drag (or Ctrl/Command + drag, or two-finger drag) to pan.

2D View Controls

A small toolbar appears in the top-left of the 2D view containing the following controls:

• Center 2D View - Reset the center/zoom of the camera to fit your dieline.

Interaction: Right-click and drag (or Ctrl/Command + drag) to pan, and scroll to zoom toward your cursor.

Keyboard Shortcuts

The following hotkeys are available throughout the app: