# Point Cloud and mesh never ends processing

**URL:** <https://community.pix4d.com/t/point-cloud-and-mesh-never-ends-processing/8098>\
**Category:** PIX4Dmapper Questions/Troubleshooting\
**Created:** [March 7, 2019, 1:30pm UTC](https://community.pix4d.com/t/point-cloud-and-mesh-never-ends-processing/8098 "2019-03-07T13:30:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Pedro\_Towers](https://avatars.discourse-cdn.com/v4/letter/p/a3d4f5/32.png) [@Pedro\_Towers](https://community.pix4d.com/u/Pedro_Towers)\
**Post date:** [March 7, 2019, 1:30pm UTC](https://community.pix4d.com/t/point-cloud-and-mesh-never-ends-processing/8098/1 "2019-03-07T13:30:00Z")

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Hello, I am writing to ask about a problem we are having with some test mosaic we are processing,

When processing reaches stage 2 it gets stuck in Step 2/10 at 33% on Poisson Surface Reconstruction.

Eventually some time it finishes , some time it doesn’t and keeps on that percentage forever. What can be the issue ?

&nbsp;

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<div class="post-metadata">

**Author:** ![Pix4D\_Alumni\_MV](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/pix4d_alumni_mv/32/2071_2.png) [@Pix4D\_Alumni\_MV](https://community.pix4d.com/u/Pix4D_Alumni_MV)\
**Post date:** [March 7, 2019, 2:25pm UTC](https://community.pix4d.com/t/point-cloud-and-mesh-never-ends-processing/8098/2 "2019-03-07T14:25:55Z")

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Hi Pedro,

You might be interested into this article:  
[Poisson Surface Reconstruction freezes at 40% while generating the 3D Textured Mesh](https://support.pix4d.com/hc/en-us/articles/213083703-Poisson-Surface-Reconstruction-freezes-at-40-while-generating-the-3D-Textured-Mesh)  
As shown in this article, you can try to decrease in the processing options the&nbsp;_Maximum Octree Depth_. When this value is high, it highly complexifies the calculation and leads to the crash.

You can try to solve it by lowering the Octree depth:&nbsp; Processing Options \> Step 2 \> 3D textured mesh, custom \> Octree depth and lower it by 1 or 2 units:

 ![](https://global.discourse-cdn.com/pix4d/original/2X/6/604a98193eee95bf8fb12f56185b03b7723ad658.png)

Hope this will help,

Best,