How to reduce point cloud data size while exporting to rcp format in scene

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Justin Richards
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Re: How to reduce point cloud data size while exporting to rcp format in scene

Post by Justin Richards »

satheeshsp wrote: Wed Jul 10, 2024 8:45 pm I have been working on a building having 5 floors. After registration from scene software the rcp data is very heavy in size. It went upto 900 gb. I am facing difficul In importing the heavy data in revit. How we can reduce the data size. My pc spec is 128 gb ram
If you are going into Revit, create a Project Point Cloud, keep the filter at least in the middle on Eliminate duplicate points, Homogenize Point Density. Then when it's done Export Project Point Cloud.

If it's 5 larger floors I would put them in clusters by floor, right click and export the cluster as a project, then open it, create a Project Point Cloud there then export project point cloud.

RCS of the Project Point Cloud is going to look a lot better in Revit and be a lot lighter than an RCP and you can export a project, create a project point cloud, and export the RCS faster than you could export an RCP.
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Re: How to reduce point cloud data size while exporting to rcp format in scene

Post by Scott »

Justin Richards wrote: Thu Jul 11, 2024 2:23 pm
satheeshsp wrote: Wed Jul 10, 2024 8:45 pm I have been working on a building having 5 floors. After registration from scene software the rcp data is very heavy in size. It went upto 900 gb. I am facing difficul In importing the heavy data in revit. How we can reduce the data size. My pc spec is 128 gb ram
- - -
RCS of the Project Point Cloud is going to look a lot better in Revit and be a lot lighter than an RCP and you can export a project, create a project point cloud, and export the RCS faster than you could export an RCP.
Could you post some comparison images (RCS & RCP)? Thanks!
Last edited by Scott on Thu Jul 11, 2024 9:24 pm, edited 1 time in total.
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Re: How to reduce point cloud data size while exporting to rcp format in scene

Post by Justin Richards »

Scott wrote: Thu Jul 11, 2024 6:59 pm
Could you post some comparison images (RCP & RCP)? Thanks!
RCP project export vs. RCS point cloud export...
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Re: How to reduce point cloud data size while exporting to rcp format in scene

Post by VXGrid »

Justin Richards wrote: Thu Jul 11, 2024 9:14 pm
Scott wrote: Thu Jul 11, 2024 6:59 pm
Could you post some comparison images (RCP & RCP)? Thanks!
RCP project export vs. RCS point cloud export...
This is wild!
The reason why I am really confused is:
The RCP file only includes information about which RCS files are in the project.
Look at the data size.
How can the results then be different?
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Re: How to reduce point cloud data size while exporting to rcp format in scene

Post by ProCro »

@Justin Richards

Are you experiencing sometimes gaps when PPC created (where single or multiple scan data exists)?

@VXGrid I'm using this method for PoinCab - much better colored results!
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Re: How to reduce point cloud data size while exporting to rcp format in scene

Post by karenlaserr »

I suggest trying a subsample value of 4 or 5 for a large project when creating the project point cloud in Scene. That should significantly reduce the file size while maintaining good enough detail for Revit.
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Re: How to reduce point cloud data size while exporting to rcp format in scene

Post by Justin Richards »

VXGrid wrote: Fri Jul 12, 2024 10:33 am

This is wild!
The reason why I am really confused is:
The RCP file only includes information about which RCS files are in the project.
Look at the data size.
How can the results then be different?
It's the Project Point Cloud and all the benefits that come along with it vs a collection of scan point clouds overlapping each other. If I delete and replace the individual scan point clouds in ReCap with the RCS of the Project Point Cloud, it will look just like the example on the right when loaded into Revit.
ProCro wrote: Sat Jul 13, 2024 1:53 pm @Justin Richards

Are you experiencing sometimes gaps when PPC created (where single or multiple scan data exists)?
I haven't had any issues with missing points on project point cloud
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Re: How to reduce point cloud data size while exporting to rcp format in scene

Post by VXGrid »

Justin Richards wrote: Tue Jul 16, 2024 3:40 pm
VXGrid wrote: Fri Jul 12, 2024 10:33 am

This is wild!
The reason why I am really confused is:
The RCP file only includes information about which RCS files are in the project.
Look at the data size.
How can the results then be different?
It's the Project Point Cloud and all the benefits that come along with it vs a collection of scan point clouds overlapping each other. If I delete and replace the individual scan point clouds in ReCap with the RCS of the Project Point Cloud, it will look just like the example on the right when loaded into Revit.
ProCro wrote: Sat Jul 13, 2024 1:53 pm @Justin Richards

Are you experiencing sometimes gaps when PPC created (where single or multiple scan data exists)?
I haven't had any issues with missing points on project point cloud
But unifying the RCP project should have the same effect.
The structured scans are not shown, they are only loaded once a panorama aka mirrorball is opened, what is visualized is the unstructured point cloud.
I mean that's the reason that unify based on static scans will reduce the project size by more than 50%
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Re: How to reduce point cloud data size while exporting to rcp format in scene

Post by Justin Richards »

VXGrid wrote: Tue Jul 16, 2024 3:43 pm

But unifying the RCP project should have the same effect.
The structured scans are not shown, they are only loaded once a panorama aka mirrorball is opened, what is visualized is the unstructured point cloud.
I mean that's the reason that unify based on static scans will reduce the project size by more than 50%
Yeah that's a good point and it would be a good opportunity to decimate the scan.


Here's and RCS exported from ReCap without decimation.
Recap Unified .png
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