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This documentation page refers to Godot
4.3,
and may be outdated or incorrect.
Additionally, this engine version is
no longer supported.
Check this page in the stable branch for the latest additions and corrections.
LightmapperRD
Inherits: Lightmapper < RefCounted < Object
The built-in GPU-based lightmapper for use with LightmapGI.
Description
LightmapperRD ("RD" stands for RenderingDevice) is the built-in GPU-based lightmapper for use with LightmapGI. On most dedicated GPUs, it can bake lightmaps much faster than most CPU-based lightmappers. LightmapperRD uses compute shaders to bake lightmaps, so it does not require CUDA or OpenCL libraries to be installed to be usable.
Note: Only usable when using the Vulkan backend (Forward+ or Mobile), not OpenGL.