# 3dsMax BabylonExporter doesn't export metallic value when roughness map is set

**URL:** <https://forum.babylonjs.com/t/3dsmax-babylonexporter-doesnt-export-metallic-value-when-roughness-map-is-set/24186>\
**Category:** Bugs\
**Tags:** material\
**Created:** [September 29, 2021, 9:00am UTC](https://forum.babylonjs.com/t/3dsmax-babylonexporter-doesnt-export-metallic-value-when-roughness-map-is-set/24186 "2021-09-29T09:00:44Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![brinx87](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/brinx87/32/13820_2.png) [@brinx87](https://forum.babylonjs.com/u/brinx87)\
**Post date:** [September 29, 2021, 9:00am UTC](https://forum.babylonjs.com/t/3dsmax-babylonexporter-doesnt-export-metallic-value-when-roughness-map-is-set/24186/1 "2021-09-29T09:00:44Z")

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When creating a PBRmat in 3dsMax and exporting it via BabylonjsExporter (Version:20210811.2) the metallic value gets ignored (set to 0) if there is a roughnessmap set.  
The bug occurred a few Versions earlier but I decided to wait reporting the bug.

Thanks for your help…

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**Author:** ![Cedric](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/cedric/32/2742_2.png) [@Cedric](https://forum.babylonjs.com/u/Cedric)\
**Post date:** [September 29, 2021, 12:34pm UTC](https://forum.babylonjs.com/t/3dsmax-babylonexporter-doesnt-export-metallic-value-when-roughness-map-is-set/24186/2 "2021-09-29T12:34:32Z")

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ping @Guillaume_Pelletier

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**Author:** ![Guillaume\_Pelletier](https://sea2.discourse-cdn.com/flex024/user_avatar/forum.babylonjs.com/guillaume_pelletier/32/3695_2.png) [@Guillaume\_Pelletier](https://forum.babylonjs.com/u/Guillaume_Pelletier)\
**Post date:** [September 29, 2021, 2:01pm UTC](https://forum.babylonjs.com/t/3dsmax-babylonexporter-doesnt-export-metallic-value-when-roughness-map-is-set/24186/3 "2021-09-29T14:01:54Z")

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Hey guy’s,  
This is NOT a bug but the behavior of Max. Either Map OR values. In order to let you export both, we expose a check box, “use scale values” under the babylon’s material properties, which might make the tricks
