https://github.com/alexismorin/Auto-Lightmap-Adjuster

UE4 & Unity plugin to Automatically adjust lightmap scale for meshes in your scene
https://github.com/alexismorin/Auto-Lightmap-Adjuster

Last synced: 4 months ago
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UE4 & Unity plugin to Automatically adjust lightmap scale for meshes in your scene

• Host: GitHub
• URL: https://github.com/alexismorin/Auto-Lightmap-Adjuster
• Owner: alexismorin
• License: mit
• Created: 2019-05-08T20:42:17.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2019-05-09T15:52:52.000Z (almost 6 years ago)
• Last Synced: 2023-11-07T16:09:43.454Z (over 1 year ago)
• Language: C++
• Size: 27.5 MB
• Stars: 174
• Watchers: 8
• Forks: 21
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome_unreal_engine_4_-_5 - Auto Lightmap Adjuster
• awesome_unreal_engine_4_-_5 - Auto Lightmap Adjuster

README

        
# Auto-Lightmap-Adjuster

## UE4 & Unity plugin to automatically adjust lightmap scale for meshes in your scene 

![header](images/header.png)

In both Unity and Unreal, adjusting the lightmap scale of various meshes in your scene is a necessary yet always tedious process. With lightmap stitching and denoising algorithms like Optix coming in, lightmap resolutions required for good-looking lightmaps are a lot lower than they used to be, and as fast at the lightbakes are in a well-optmized game engine scene adjusting arcane numbers or resolutions to reduce noise isn't really the most productive use of one's time. 

With this engine-agnostic plugin, correct lightmap resolution for your meshes is now one click away, with the package offering various resolutions depending on the engine use case.

### Usage - Unity

![unitysettings](images/unitysettings.png)

The package installed, simply navigate to the new *Tools/Adjust Lightmap Scale* menu items and select your resolution:

- *Mobile* is good for preview renders or mobile games (duh).

- *Desktop and Consoles* is what's going to work best for probably most game or cutscene usecases, it's a good tradeoff between resolution and memory.

- *Film & TV rendering* is for real-time render stuff or cutscenes - unless you're running an RTX rig you're going to have a bad time having this in a game.

![unityresults](images/unityresults.png)

### Usage - Unreal

![unrealsettings](images/unrealsettings.png)

The plugin installed, simply navigate to the new *Windows/Lightmap Scale* menu bar items and select your resolution:

- *Performance* is good for preview renders or mobile games (duh).

- *Balanced* is what's going to work best for probably most game or cutscene usecases, it's a good tradeoff between resolution and memory.

- *Quality* is for real-time render stuff or cutscenes - unless you're running an RTX rig you're going to have a bad time having this in a game.

![unrealresults](images/unrealresults.png)

### Install process

The repository is split for the two engines: the *Plugin* folder's for Unreal and the *Packages* folder for Unity.

#### Unity 2019.2

![packman](images/packman.png)

This is a plugin that makes use of Unity's *Package Manager* feature. Just drop the *com.alexismorin.autolightmapadjuster* folder into your *packages* folder (found at the same level as the Assets folder) and it should work out-of-the-box. If you're using a pre-packman version of Unity (maybe supported, can be made to work if you're courageous), take the stuff inside the *com.alexismorin.autolightmapadjuster* folder and then drag it anywhere into your regular project hierarchy.

#### Unreal 4.22

![plugins](images/plugins.png)

Just drag the *AutoLightmapAdjuster* folder into your project's *Plugins* folder (create it at the same level as your content folder if you don't have one already) and open your project - things should work out by themselves.

Per usual, this was whipped up in a couple of hours on my couch - bugs beware, tweak or fork as you wish.

### Bugs

- Unreal will sometimes not refresh the new lightmap sizes; just select all the static meshes in the scene and toggle on and off the override setting - that'll fix it.