Lightmap looks unreal and the shadow looks un clear

I created a lightmap in Blender and then imported it into my ThreeJS project, however, the final result is disappointing. When I increased the lightmap intensity to 10, the outcome was much worse than before. i want the shadow to look clearer.

any advice on how can i fix this

Thanks all


the light map intensity in this is 1 :

Okay… I’d recommend you start by making sure all your color spaces are correct (your renderer is outputting sRGB encoding, and the textures going into it are sRGB encoded). Then, add a demo-environment to make sure all your materials are working. From there, rebake the map in blender w/ higher resolution (for cleaner shadows) and then try again in three.js.