# Opacity issue with point picking on surface

**URL:** https://discourse.vtk.org/t/opacity-issue-with-point-picking-on-surface/1193
**Category:** Support
**Created:** [June 21, 2019, 7:52pm UTC](https://discourse.vtk.org/t/opacity-issue-with-point-picking-on-surface/1193 "2019-06-21T19:52:43Z")
**Posts on this page:** 1
**Showing post:** 13

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### Author: ![banesullivan](https://discourse.vtk.org/user_avatar/discourse.vtk.org/banesullivan/32/7143_2.png) [@banesullivan](https://discourse.vtk.org/u/banesullivan)
#### Post date: [July 2, 2019, 8:15pm UTC](https://discourse.vtk.org/t/opacity-issue-with-point-picking-on-surface/1193/13 "2019-07-02T20:15:35Z")

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> [@lassoan](#):
>
> However, triangulation does not need to create new points, so I would assume that point IDs are not affected.

Thats an excellent point - I suppose my application is more focused on cell picking than point picking as we want to retain the input mesh’s resolution as much as possible so I’ll have to find a work around for that.

Thanks, @lassoan!

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