The Lightmapper is an addon for Blender that implements lightmapping and denoising capabilities for global illumination texture baking with support for 32-bit HDR Lightmaps. Baking is done through Cycles.

Development information thread here: http://forums.armory3d.org/t/hdr-lightmaps-addon/3074/6

It's free and open-source.

• Cycles-based automated lightmap baking

• Per-object settings and individual resolution setting

• Denoising with Intel OIDN (Bundled)

• Automatic CPU/GPU option and switching

• Scalable lightmapping quality and resolution

• OpenCV Based filtering options for post-processing

• Automatic Installation for OpenCV

• Direct 32-bit RGBE (.hdr) export for Armory/EEVEE/Unity

• RGBM/RGBD png encoding for non-compatible engines (Godot/UE4/Etc.)

• Automatic node-management (Setup, backup, restoration)

• More stability
• More documentation
• New denoising option - NVIDIA Optix
• Automated AO baking and node management
• New filtering options
• Equirectangular panoramic rendering with EEVEE
• Cubemap panoramic rendering with EEVEE
• Spherical Coefficient gathering
• Additional bake-time Object/Light/World controls
• Lightmap Adjustment Tools
• Addon refactoring
• Network Rendering
• Texel Density management
• UV/Lightmap Preparation tools
• and more....

Installation of the addon is straight forward. Get the latest release here, and select the zip-package:

https://github.com/Naxela/HDR_Lightmapper/releases

The addon consists of 2 panel for now:

The main panel located under the Render context tab controls quality and general settings for the baking process, including denoising, filtering, lightmap-location and more:

The second panel is located under the object tab, and controls the individual baking resolution as well as specific unwrap settings for the object:

The easiest way to get started is:

• Make a scene with a cube, a plane and a light
• Select the cube and the plane
• Click "Build Light for selected" in the main HDR Lightmapper panel
• Baking should take a few seconds
• Turn on Eevee with World Light for better and quick visual review:

Blender, Lightmapping and Armory

Naxela's Laboratory (No quality scaling, requires decent specs):

Experiment 1: http://laboratory.naxela.info/experiment_1/

Experiment 2: http://laboratory.naxela.info/experiment_2/

Experiment 3: http://laboratory.naxela.info/experiment_3/