# 3D reconstruction of BMP image sequence

**URL:** https://discourse.vtk.org/t/3d-reconstruction-of-bmp-image-sequence/7290
**Category:** Support
**Created:** [November 28, 2021, 2:32am UTC](https://discourse.vtk.org/t/3d-reconstruction-of-bmp-image-sequence/7290 "2021-11-28T02:32:50Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Wenhui-person](https://discourse.vtk.org/user_avatar/discourse.vtk.org/wenhui-person/32/4345_2.png) [@Wenhui-person](https://discourse.vtk.org/u/Wenhui-person)
#### Post date: [November 28, 2021, 2:32am UTC](https://discourse.vtk.org/t/3d-reconstruction-of-bmp-image-sequence/7290/1 "2021-11-28T02:32:50Z")

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In the VTK 3D reconstruction surface rendering method, the required obj format file is exported, but it is found that there are no surface elements in the obj file. What should I do?