Apply shader to tileset(multiple meshes at once)

Questions
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1

i use lib for load tileset that add a lot of meshes on scene dynamically. what i want is to write a shader that for example highlight area based on uniform values(coords of bbox). i tries to use onBeforeCompile added on every loaded mesh runtime with my shader and it’s kinda work but maybe there is a better approach.
As i understand EffectComposer dont help with it, cause highlight boundaries i pass as world space coords.

2

I like your approach. :slight_smile:

There’s also scene.overrideMaterial that you can use to render a bunch of things w the same material .. but your method sounds more efficient.