# In an Instanced Static Mesh, in one instance, update material at runtime

**URL:** <https://forums.unrealengine.com/t/in-an-instanced-static-mesh-in-one-instance-update-material-at-runtime/2855898>\
**Category:** Rendering\
**Tags:** unreal-engine, question\
**Created:** [November 14, 2026, 6:17pm UTC](https://forums.unrealengine.com/t/in-an-instanced-static-mesh-in-one-instance-update-material-at-runtime/2855898 "2026-11-14T18:17:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ViaCognita](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/viacognita/32/906601_2.png) [@ViaCognita](https://forums.unrealengine.com/u/ViaCognita)\
**Post date:** [November 14, 2026, 6:17pm UTC](https://forums.unrealengine.com/t/in-an-instanced-static-mesh-in-one-instance-update-material-at-runtime/2855898/1 "2026-11-14T18:17:14Z")

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Hi!

I’m using Instanced Static Meshes with this Material:

 ![imagen](https://d3kjluh73b9h9o.cloudfront.net/original/4X/3/6/8/368fb83621cb0d5359987b7fcda6af8846ddc97e.png)

In one instance, I need to increase the value of the ‘Multiply’ node at runtime and then lower it after a few seconds.

How can I do it?

Thank you!

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<div class="post-metadata">

**Author:** ![ImYourBeast](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/imyourbeast/32/1220194_2.png) [@ImYourBeast](https://forums.unrealengine.com/u/ImYourBeast)\
**Post date:** [November 14, 2026, 6:58pm UTC](https://forums.unrealengine.com/t/in-an-instanced-static-mesh-in-one-instance-update-material-at-runtime/2855898/2 "2026-11-14T18:58:57Z")

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set num custom data floats to 1 on the ism component  
swap that multiply for a perinstancecustomdata node in the material  
then per instance call set custom data value with index 0  
raise it and lower it again on a timer for that one instance