A few questions regarding Pointclouds
Dear all,
I bought BricsCAD a few weeks ago, and now that my AutoCAD subscription has ended, I’m starting to work more deeply with BricsCAD. The only issue is that I am very used to many AutoCAD routines, and I am struggling to apply them in BricsCAD.
For context, I have 15 years of experience working with point clouds in AutoCAD. I understand this is not the same software, but many of the features should be similar. With that in mind, I have a couple of questions:
- Point Cloud Cropping
Is it possible to save point cloud crops? I work with very large powerplant models, and every time I need to go back a step on a slice, the entire point cloud reappears. I then need to start all over again to reach the point I was working on. Is there a way to save these crop states? - Performance Issues
I have a 12th Gen processor, 128 GB RAM, and an RTX 4000. I Have started with 1000000 points, then reduced it to 500000 points, but the point cloud feels laggy when I pan or orbit. Sometimes it doesn’t even render the entire cloud, and I see “squares” with very few points in the middle of the cloud.
Is there any configuration I might be missing to improve performance?
Thank you very much in advance for your help.
Best regards,
Hugo Pinto
Comments
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For Point Cloud cropping, there are 2 other methods next to traditional cropping:
- PointcloudCropSolid: turn a solid into a cropping volume. Cropping can be toggled in the properties panel and you can still modify the solid (pushpull). A cropsolid is stored in the drawing
- PointCloudRegion is a point attribute, accessible in the PointCloudManager, where you can toggle visibility. You can give it a name and it is saved in the cached point cloud. So it will be available in any drawing where the cache is attached.
About the performance, with this hardware, you should be able to load the maximum of points (50e6). Are you sure you force Bricscad to work on that gpu? Can be checked with REDSDKINFO command
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Hi Plet, thank you for your answer. PointcloudCropSolid works greatly. i can work with this. Amazing, thanks.
PointCloudRegion, this one i couldnt make it to work:
: _pointcloudreference
Auto saving open drawings... C:\Users\SupremeXpansion\AppData\Local\Temp\3D_7547.SV$
:
:
Cancel
:
:
: _pointcloudreference
Created link in dwg to point cloud 3D_5950.SV$ to cached data...An error occurred while rendering entity 738: Unknown error
In regards performance, i am not sure how to force bricscad to do this. when i use this comand ''REDSDKINFO '' this is what it brings:
: REDSDKINFO
RedSDK version: 5.1 (build 5971)
RenderUsingHardware: Hybrid hardware/software mode with preferred hardware rendering.
OpenGL window creation succeeded.
Operating system: Win_ten64
Desktop composition (Aero) is enabled.
Local GPU:
GPU information:
name: 'NVIDIA Quadro RTX 4000'
chipset: 'GXXX'
class: 'HW_NVIDIA_G400'
asicID: '0x1eb1'
vendorID: '0x10de'
recommended driver: 'Operating system proprietary graphic driver'
Installed driver:
driver: 'NVIDIA Forceware 553.35'
dll version: ''
This driver is newer than all internal known revisions.
validation: 'Ok'
Installed driver is up-to-date.
Selected GPU (created for GPU check):
Chipset: HW_NVIDIA_G400
Vendor: NVIDIA Corporation ( IsNVidia )
OpenGL version: 4.6.0 NVIDIA 553.35
Renderer: Quadro RTX 4000/PCIe/SSE2
OpenGL extensions: GL_AMD_multi_draw_indirect GL_AMD_s0 -
driver: 'NVIDIA Forceware 553.35'
dll version: ''
This driver is newer than all internal known revisions.
validation: 'Ok'
Installed driver is up-to-date.Hmmh, is this a GPU driver offered by Windows Update ?
As on the Nvidia page you will find 581.42 :
Quadro RTX 4000 | Windows 10 64-bit
Windows 10 64-bit
Windows 11NVIDIA RTX Driver Release 580What is a Production Branch/Studio Driver?This driver provides optimal stability and performance. Production Branch drivers offer ISV certification, long life-cycle support, and access to the same functionality as corresponding Studio Drivers of the same version.
Formerly known as Quadro Optimal Driver for Enterprise (ODE).Driver Version: R580 U4 (581.42) Release Date: 2025 September 30 File Size: 712.66 MB
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I'm glad crop solids help. For point cloud region, maybe this article about point cloud manager can help:
As zoomer suggests, maybe try updating to the latest driver first. If problems persist, it is better to create a support request.
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Hi Zoomer you are totally right. I have installed everything from scratch last month and this driver were installed automatically. i will give it a try and post the feedback
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Unfortunatly it didnt work at all.
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The squares that you see is because the POINTMAX budget is so low. Can you with 15-20e6? Or is performance then unacceptable?
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