# Cryptomatte is here - Amazing!

**URL:** <https://blenderartists.org/t/cryptomatte-is-here-amazing/1132013>\
**Category:** Compositing and Post Processing\
**Created:** [October 29, 2018, 6:36pm UTC](https://blenderartists.org/t/cryptomatte-is-here-amazing/1132013 "2018-10-29T18:36:09Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![anon72338821](https://blenderartists.org/letter_avatar_proxy/v4/letter/a/db5fbb/32.png) [@anon72338821](https://blenderartists.org/u/anon72338821)\
**Post date:** [October 29, 2018, 8:10pm UTC](https://blenderartists.org/t/cryptomatte-is-here-amazing/1132013/2 "2018-10-29T20:10:50Z")

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I had some luck:  
a) Enable Cryptomatte renderpass:  
 ![01_EnableRenderpasses](https://blenderartists.org/uploads/default/original/4X/e/d/3/ed36e22146320e96cf690d8d1381ce4d9422a116.png)

b) Render, and add nodes like this:

 ![02a_GetCollors](https://blenderartists.org/uploads/default/original/4X/3/a/a/3aaae667611f4db2b11119421a02ab8d11aece4d.png)  
That is just to pick the colors. So pick an object you want to isolate (I will pick the blue box)

c) Use now the matte output :  
 ![03_GetMAtte](https://blenderartists.org/uploads/default/original/4X/2/1/d/21d5a2143f876249965bab4df769fc11792041f4.png)  
And there you have your mask.

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