# Surface reconstruction using Activiz control

**URL:** https://discourse.vtk.org/t/surface-reconstruction-using-activiz-control/3279
**Category:** Support
**Created:** [May 12, 2020, 4:55am UTC](https://discourse.vtk.org/t/surface-reconstruction-using-activiz-control/3279 "2020-05-12T04:55:27Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![janhavi\_deshpande](https://discourse.vtk.org/user_avatar/discourse.vtk.org/janhavi_deshpande/32/1774_2.png) [@janhavi\_deshpande](https://discourse.vtk.org/u/janhavi_deshpande)
#### Post date: [May 12, 2020, 4:55am UTC](https://discourse.vtk.org/t/surface-reconstruction-using-activiz-control/3279/1 "2020-05-12T04:55:27Z")

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Hello, I am trying to render 3D surface using set of contours. I found that surface reconstruction is taking lesser time with activiz control than c++. Why does implementation using activiz takes less time?  
Also I want to improve the time further through GPU implementation. Does activiz provide support for GPU?