Actual mesh size vs lightmap res

Development Rendering
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Hi All,

I have some doubts about a particular subject wich is the relation between the actual mesh size (square meters) vs the lightmap resolution, and in wich way it can be controlled.

The case is that I am developing a large architectural visualization project, and I would like to know if there is some way to control the lightmap resolution of objects depending on their actual size. I don’t mean a BP way, but more of a workflow strategy.

All of this assuming that my knowledge on lightmaps is right.

Thanks!!

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Lightmap resolution doesn’t necessarily correlate with size, for example you can have a floor which is very simple and you can use planar mapping which is very efficient, which can mean that you don’t necessarily need a high resolution lightmap because it uses the space so well. In other cases, it can depend on the amount of detail in the shadows that you need, which you won’t necessarily know what you need until after you’ve built the lighting already.