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MOCView
A real-time brick viewer — import LDraw (.ldr) files, explore with live previews and walkthroughs, and export photorealistic rendered images.

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Early Access Software

Get involved with this software as it develops.

Note: This Early Access software is not complete and may or may not change further. If you are not excited to use this software in its current state, then you should wait to see if it progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“This software is currently in Early Access.
Real-time rendering, part compatibility, and performance optimization involve a wide range of hardware configurations and usage scenarios. Early Access allows us to continuously improve stability, performance, and overall user experience based on community feedback.
The current Early Access version is fully usable for model presentation and rendering output, while some advanced features are still under development.”

Approximately how long will this software be in Early Access?

“The duration of Early Access will depend on the progress of feature expansion and optimization. There is currently no fixed end date, and the software will continue to receive updates and improvements throughout development.”

How is the full version planned to differ from the Early Access version?

“The full version is planned to further expand the presentation capabilities of the software, including more diverse environments, enhanced interaction features, more advanced rendering options, as well as continued improvements to performance and compatibility.”

What is the current state of the Early Access version?

“Current features include:
LDraw / LDR file import
Real-time rendering with physically-based visuals
Camera controls: aperture, focal length, exposure, depth of field
Image capture and export
Advanced viewing tools: layer separation, step display, rapid building visualization, and more”

Will this software be priced differently during and after Early Access?

“The software is currently available for free. The availability and usage of existing core functionality will not be affected during or after Early Access.”

How are you planning on involving the Community in your development process?

“Community feedback plays an important role in development. We actively monitor the Steam Community discussions for bug reports and suggestions, using real-world usage insights to continuously improve software performance and feature design.”
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About This Software

MOCView is a creative tool designed for brick enthusiasts and MOC designers, helping them present their creations with high-quality visuals. Import your LDraw (.ldr) files to instantly view your builds in a real-time viewport.

Explore your models using free-camera or first-person controls, and adjust photographic settings such as aperture, focal length, exposure, and depth of field to capture stunning images. Whether you are designing, documenting, or sharing your latest MOC, MOCView lets you showcase your work with realism and efficiency.

Core Features:

  • Seamless import of LDraw (.ldr), including files exported from Stud.io.

  • Real-time viewport with photorealistic rendering.

  • Step inside with a first-person, immersive walkthrough.

  • Intuitive camera controls: aperture, focal length, exposure, depth of field.

  • Advanced display tools: Layer Peel, Step Display, Quick Build, and more.

  • Easy Create Shot.

This software uses parts data from the LDraw® Parts Library. The LDraw® Parts Library is licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0).

LDraw® is a trademark of the Estate of James Jessiman, which does not sponsor, authorize, or endorse this software. Parts data © , used with permission.

This software is not affiliated with, sponsored, authorized, or endorsed by the LEGO Group.

The demo material includes the MOC “Italian_Street_Corner”, originally designed by brick__engineer and published on Rebrickable.

This work is used here with the permission of the creator. All rights remain with brick__engineer.

System Requirements

    Minimum:
    • OS: win10
    • Memory: 16 GB RAM
    • DirectX: Version 12
    • Storage: 11 GB available space
    Recommended:
    • OS: win11
    • Memory: 16 GB RAM
    • DirectX: Version 12
    • Storage: 11 MB available space
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