# Embree problem with illegal instruction in ParaView 5.6.1

**URL:** https://discourse.paraview.org/t/embree-problem-with-illegal-instruction-in-paraview-5-6-1/2070
**Category:** Development
**Created:** [June 18, 2019, 5:19pm UTC](https://discourse.paraview.org/t/embree-problem-with-illegal-instruction-in-paraview-5-6-1/2070 "2019-06-18T17:19:23Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![Dave\_DeMarle](https://discourse.paraview.org/user_avatar/discourse.paraview.org/dave_demarle/32/27_2.png) [@Dave\_DeMarle](https://discourse.paraview.org/u/Dave_DeMarle)
#### Post date: [June 18, 2019, 5:41pm UTC](https://discourse.paraview.org/t/embree-problem-with-illegal-instruction-in-paraview-5-6-1/2070/3 "2019-06-18T17:41:01Z")

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Hey Joe.

This is the change that made AVX the minimum supported ISA.  
[https://gitlab.kitware.com/paraview/paraview-superbuild/commit/f3bbdc1d2a441ccf86498f16b5a818fc5709e6ca](https://gitlab.kitware.com/paraview/paraview-superbuild/commit/f3bbdc1d2a441ccf86498f16b5a818fc5709e6ca)  
I introduced it because MacOS no longer builds embree with SSE and AVX is quite old now.

For standalone builds you can set(embree\_BUILD\_ISA SSE2 SSE4D AVX AVX2) in your CMakeCache.txt to get back the SSE support.

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