# \[Desktop\]\[Pix4Dmodel\] Export file OBJ with layer or similar to reduce PC usage

**URL:** <https://community.pix4d.com/t/desktop-pix4dmodel-export-file-obj-with-layer-or-similar-to-reduce-pc-usage/6046>\
**Category:** PIX4Dmapper Questions/Troubleshooting\
**Created:** [February 23, 2018, 10:42am UTC](https://community.pix4d.com/t/desktop-pix4dmodel-export-file-obj-with-layer-or-similar-to-reduce-pc-usage/6046 "2018-02-23T10:42:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Davide\_Bolo](https://avatars.discourse-cdn.com/v4/letter/d/9fc29f/32.png) [@Davide\_Bolo](https://community.pix4d.com/u/Davide_Bolo)\
**Post date:** [February 23, 2018, 10:42am UTC](https://community.pix4d.com/t/desktop-pix4dmodel-export-file-obj-with-layer-or-similar-to-reduce-pc-usage/6046/1 "2018-02-23T10:42:33Z")

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Hi,

Sorry this is my first job with Pix4d.  
I performed a survey inside a cemetery, to simulate the insertion of a new funeral aedicule in Sketchup.

[https://cloud.pix4d.com/model/project/244346/mesh?shareToken=0add12ff01d6417583bcd01287376965](https://cloud.pix4d.com/model/project/244346/mesh?shareToken=0add12ff01d6417583bcd01287376965)

Through a plugin, I imported the OBJ file that produces Pix4Desktop in SK: all right, but the mesh is large (as well as the area) and the PC, although from Computer resources it seems not (12GB RAM, Athlon 860K, less than 50% working), it effort to manage it.

Specifically, I would like to divide the area that I have detected, in layers to turn them on / off when necessary in Sketckup: example, during modeling, I turn on only the triangle of terrain that interests me to properly locate my construction, and then, to render, I turn on the rest.

How can I assign the OBJ file that produces Pix4D different layers for parts of the model?

If my way of acting was not correct, how could I proceed?  
Thank you very much.

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**Author:** ![Julie\_Pichon](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/julie_pichon/32/592_2.png) [@Julie\_Pichon](https://community.pix4d.com/u/Julie_Pichon)\
**Post date:** [February 28, 2018, 7:36am UTC](https://community.pix4d.com/t/desktop-pix4dmodel-export-file-obj-with-layer-or-similar-to-reduce-pc-usage/6046/2 "2018-02-28T07:36:29Z")

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Hi Davide,

I am not familiar with Sketchup. However, you can create several mesh .obj files using Pix4Dmodel, although it requires some manual work.

You could take advantage of [processing areas](https://support.pix4d.com/hc/en-us/articles/202560179), by drawing one to reduce the model and re-run step 2 to generate a smaller mesh that will be restricted by the box. Then you replace that processing area by a new one (ensuring they overlap a bit), which would focus on a different part of the model, and proceed similarly to generate a second small mesh, etc.

Hope it helps!