Commits on Jan 24, 2024

1. Add a Preview Bake button for quick iteration with LightmapGI …

   When using the Preview Bake button instead of Bake Lightmaps,
   low quality settings will be used instead of settings from the
   LightmapGI node. A node configuration warning will be displayed
   besides the LightmapGI node to inform the user that the bake
   was done in preview mode. This preview bake warning is persisted
   to storage to make teamwork easier.
   
   This helps iterate quicker on a scene's lighting since you don't
   need to wait as much time to see results.
   
   On a simple test scene, Preview Bake is about 3 times faster
   than a "final" bake with the default LightmapGI settings
   (if denoising is not the bottleneck). This metric will vary depending
   on CPU and GPU speed, as the baking process is performed on the GPU
   but denoising is performedon the CPU.
   
   The preview bake settings can be adjusted in the Project Settings.
   
   This also prints a message with the effective quality settings
   before beginning the lightmapping process.

   

   Calinou committed Jan 24, 2024
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