# Point Cloud Rending

**URL:** https://discourse.vtk.org/t/point-cloud-rending/14444
**Category:** Support
**Created:** [August 21, 2024, 8:17am UTC](https://discourse.vtk.org/t/point-cloud-rending/14444 "2024-08-21T08:17:39Z")
**Posts on this page:** 3
**Page:** 1

<div class="post-metadata">

### Author: ![metamurk](https://discourse.vtk.org/user_avatar/discourse.vtk.org/metamurk/32/9665_2.png) [@metamurk](https://discourse.vtk.org/u/metamurk)
#### Post date: [August 21, 2024, 8:17am UTC](https://discourse.vtk.org/t/point-cloud-rending/14444/1 "2024-08-21T08:17:39Z")

</div>

Hello together,

I’m rendering medium size point clouds (up to 20m points) with vtk.  
I’m ussing gaussian splatting for rendering.

I have to issues:  
When I zoom out, my point cloud disappeares relativly fast. How can I prevent this?

I have relativly strong mourier effects. Is there a way to prevent this?

Thank you 🙂

---

<div class="post-metadata">

### Author: ![lgivord](https://discourse.vtk.org/user_avatar/discourse.vtk.org/lgivord/32/3543_2.png) [@lgivord](https://discourse.vtk.org/u/lgivord)
#### Post date: [August 21, 2024, 8:47am UTC](https://discourse.vtk.org/t/point-cloud-rending/14444/2 "2024-08-21T08:47:11Z")

</div>

Hello @metamurk,

> When I zoom out, my point cloud disappeares relativly fast. How can I prevent this?

I guess that’s probably because your data is out of the clipping range of the camera. You can control it by setting a different clipping range see [VTK: vtkCamera Class Reference](https://vtk.org/doc/nightly/html/classvtkCamera.html#a77b10f3b45f612721edb05e2a810d285)

> I have relativly strong mourier effects. Is there a way to prevent this?

That’s always a diffcult task and we can only reduce this effect, some people use post process anti aliasing like MSAA.

In some case using multisampling can reduce this effect, I believe you should have an option in VTK for that probably in the vtkRenderWindow.

---

<div class="post-metadata">

### Author: ![lgivord](https://discourse.vtk.org/user_avatar/discourse.vtk.org/lgivord/32/3543_2.png) [@lgivord](https://discourse.vtk.org/u/lgivord)
#### Post date: [August 21, 2024, 8:51am UTC](https://discourse.vtk.org/t/point-cloud-rending/14444/3 "2024-08-21T08:51:40Z")

</div>

btw if you use gaussian splatting in vtk I believe you do your own mapper.

I’m curious about how you support that. I don’t know if it’s possible for you but it would be an awesome contribution to vtk if you can backport it to VTK 🙂