javascript - mering same geometry with different ambient colors -


i create custom geometry , use meshphongmaterial material. because geometry large, want merge them in 1 geometry better performance. problem want use different ambient color each child geometry. think can change color using more material , change materialindex each face, maybe not work , may costs lot of time , use more texture. there simple way archive this? i'm not sure how three.js render different material have no idea this.thanks help.

the merge won't since materials stay different.


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