Low fps using RectAreaLight: alternatives?

Questions
1

Hi guys, I am building a scify scene where I am using RectAreaLights to simulate strip lights (you can see the RectAreaLightHelpers in the image).

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I have noticed a very low fps performance when using these type of lights (no more than 20-30 fps). If I use any other type of light such as SpotLight or PointLight I get 60 fps steady.

Is there anything I can do to improve performance? Or some other technique I can use to simulate strip lights?

threejs: r98
browsers: safari, chrome
os: macos, windows, ios

2

Crossposting:

3

Hi!
Maybe try to use lightmap?
https://threejs.org/examples/?q=lightm#webgl_materials_lightmap

1 Like
4

Also see:

5

Thanks for the suggestion, I need to study the topic a bit first (never used a lightmap ^_^)