# Vray dirt "replace map" - keep map as sub-map - use unoccluded colour slot!

**URL:** <https://forums.chaos.com/t/vray-dirt-replace-map-keep-map-as-sub-map-use-unoccluded-colour-slot/61750>\
**Category:** Requests\
**Created:** [January 12, 2017, 5:03pm UTC](https://forums.chaos.com/t/vray-dirt-replace-map-keep-map-as-sub-map-use-unoccluded-colour-slot/61750 "2017-01-12T17:03:11Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![Margarita.Stoeva](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/margarita.stoeva/32/15122_2.png) [@Margarita.Stoeva](https://forums.chaos.com/u/Margarita.Stoeva)\
**Post date:** [February 27, 2017, 12:54pm UTC](https://forums.chaos.com/t/vray-dirt-replace-map-keep-map-as-sub-map-use-unoccluded-colour-slot/61750/9 "2017-02-27T12:54:51Z")

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Hello!

> [@Vrayfur: no bending - no gravity effect...](https://forums.chaos.com/t/vrayfur-no-bending-no-gravity-effect/53607/8):
>
> When I replace a bitmap in the diffuse channel to add some dirt, the option to keep the current map is there but it goes into the “radius” section, rather than “unoccluded colour”

I’m happy to inform you that this is fixed for the upcoming release - the submap will be automatically placed in the “unoccluded colour” slot.

> [@dlparisi](#):
>
> … another minor irritation in the vraydirt parameters is that if I drag a map slot from the lower portion (where the full map is listed, not just the ‘M’) I’m only given the option to instance or copy the map, not swap it.

This is still in the To do lists.

Best regards,  
Margarita

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