# Lightmap for metal does not work
**URL:** https://discourse.threejs.org/t/lightmap-for-metal-does-not-work/20550
**Category:** Questions
**Tags:** lightmap, materials
**Created:** [November 9, 2020, 8:43am UTC](https://discourse.threejs.org/t/lightmap-for-metal-does-not-work/20550 "2020-11-09T08:43:48Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@RichardBao](https://discourse.threejs.org/u/RichardBao)
#### Post date: [November 9, 2020, 8:43am UTC](https://discourse.threejs.org/t/lightmap-for-metal-does-not-work/20550/1 "2020-11-09T08:43:49Z")
Hey guys, i had some problem making metal surface looking correct in THREE, i have baked lightmap for my mesh and here is the lightmap(through baking glossy pass in blender).
the lightmap looks correct. and all other non-metal mesh’s lightmap works ok.
but when the metal mesh just doesn’t work.
this is how it looks in THREE.
here is what it should look like(in blender)
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### Author:  [@Mugen87](https://discourse.threejs.org/u/Mugen87)
#### Post date: [November 9, 2020, 9:36am UTC](https://discourse.threejs.org/t/lightmap-for-metal-does-not-work/20550/2 "2020-11-09T09:36:07Z")
Have you applied an environment map to your model? Keep in mind that Blender shows reflections which is not yet true for your app.
Besides, a light map should be in grayscale which seems not true for your generated texture.
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### Author:  [@RichardBao](https://discourse.threejs.org/u/RichardBao)
#### Post date: [November 9, 2020, 9:43am UTC](https://discourse.threejs.org/t/lightmap-for-metal-does-not-work/20550/3 "2020-11-09T09:43:34Z")
the lightmap is colored because the light source is has color, so i suppose it’s not a problem.
i tried applied environment map to it as well. still the same.
but if i manually decrease the metalness to anything but 1. it could work, here is metalness != 1
the lightmap just doesn’t work on metal surface.
and if i make the metalness != 1. the lightmap can work instantly,
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### Author:  [@Mugen87](https://discourse.threejs.org/u/Mugen87)
#### Post date: [November 9, 2020, 9:47am UTC](https://discourse.threejs.org/t/lightmap-for-metal-does-not-work/20550/4 "2020-11-09T09:47:47Z")
How does it look with metalness `0.99`?
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### Author:  [@RichardBao](https://discourse.threejs.org/u/RichardBao)
#### Post date: [November 9, 2020, 9:56am UTC](https://discourse.threejs.org/t/lightmap-for-metal-does-not-work/20550/5 "2020-11-09T09:56:19Z")
I just test different value again.
the lightmap can show up only when metalness value \<= 0.9.
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### Author:  [@donmccurdy](https://discourse.threejs.org/u/donmccurdy)
#### Post date: [November 9, 2020, 5:27pm UTC](https://discourse.threejs.org/t/lightmap-for-metal-does-not-work/20550/6 "2020-11-09T17:27:26Z")
Metallic materials require an environment map — if an environment map is having no effect on the material, something may be set up incorrectly, can you share a demo to debug?
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### Author:  [@RichardBao](https://discourse.threejs.org/u/RichardBao)
#### Post date: [November 10, 2020, 1:47am UTC](https://discourse.threejs.org/t/lightmap-for-metal-does-not-work/20550/7 "2020-11-10T01:47:23Z")
I’ll try create a simple one to debug.