Thinkbox Releases Sequoia 1.0!

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ifraser
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Re: Thinkbox Releases Sequoia 1.0!

Post by ifraser »

jmiranda wrote:Any fixes to the point cloud precision (big coordinates problem in 1.0)?
Yes, we have a vastly improved precision system that supports defining user coordinate system to allow you to maintain precision. It is not complete yet as there are still subtleties that we are working on that will be complete by the time 1.1 is released, but we will be showing it this week if you are coming to SPAR!

I will defer to Mark to post the technical details.

Thanks,
Ian
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Re: Thinkbox Releases Sequoia 1.0!

Post by mwiebe »

ifraser wrote:
jmiranda wrote:Any fixes to the point cloud precision (big coordinates problem in 1.0)?
Yes, we have a vastly improved precision system that supports defining user coordinate system to allow you to maintain precision. It is not complete yet as there are still subtleties that we are working on that will be complete by the time 1.1 is released, but we will be showing it this week if you are coming to SPAR!

I will defer to Mark to post the technical details.

Thanks,
Ian
There are two main things we've done for better precision support in the upcoming Sequoia 1.1. When creating the SPRT cache of the point cloud, we can take a look at the source points, determine how precisely they will be stored with different approaches, and make a good default recommendation for that storage. This precision is then kept through internal processing and display.

When producing meshes, you can specify coordinate systems or use a default that preserves the precision well, then use the resulting mesh together with that coordinate system transform even in applications that don't natively support higher precision mesh data.

We're still refining the user interface of this, how to give good defaults but communicate clearly what precision the data actually is stored at, but this will be in good shape when 1.1 is released.

Thanks,
Mark
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Re: Thinkbox Releases Sequoia 1.0!

Post by dhirota »

According to the Thinkbox folks here at SPAR2016, they have received the Z+F SDK, so they will be working on a Z+F zfs format importer into Sequoia.
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Re: Thinkbox Releases Sequoia 1.0!

Post by dhirota »

I received a copy of Sequoia v1.1b50 which loads native ZFS and ZFprj files directly into Sequoia. I will try to test multiple Z+F files to see if there are any problems, but the few I tried seemed to work OK.

I have not tried other new features, but will try them out in the next week. I think one of them is the 3D PDF.
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Re: Thinkbox Releases Sequoia 1.0!

Post by dhirota »

An update of the "zfproj" and zfs input has worked well.

I tried Sequoia on my new DELL 7710 portable workstation, which is working well with a Samsung 950 m.2 512GB SSD C: drive, 2TB Samsung 850 SSD D: drive, 64GB RAM, and Quadro M5000M with 8GB GPU RAM.

The example screen shot is my standard cathedral example with 6 - 5010X scans, reduced by 90 percent to 10% (147M faces) of original (265M lidar points). The radius used for the meshing was 3mm.

Mesh color derived from vertex point color. Will probably try the UV images to colorize a smaller mesh size later.
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Re: Thinkbox Releases Sequoia 1.0!

Post by Jason Warren »

Nice one, thank you for posting ;o)
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Re: Thinkbox Releases Sequoia 1.0!

Post by dhirota »

OK, this is where we would like to be going with our experiment of minimizing mesh size. This last Sequoia document (project) was completed at 95% mesh reduction (5% remaining, 74M faces in file, 35M displayed points) with 3mm radius and baked UV texture on the mesh.
SEQUOIA_DELL 7710.jpg
We will be trying some other variations, with smaller meshes. Next job to build a demo system with more RAM.
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Re: Thinkbox Releases Sequoia 1.0!

Post by cpw006 »

We've been using Sequoia for the last month with great results. Just figured I'd give a shout out. :D
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Re: Thinkbox Releases Sequoia 1.0!

Post by dhirota »

Chris

Have you used Sequoia with low percentage mesh remaining, less than 5%? Please share some of your examples.
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Re: Thinkbox Releases Sequoia 1.0!

Post by dhirota »

Until I build my meshing machine in the next few weeks, we are trying some meshes one per cent or less remaining from the original point cloud (99% or more culled of the original faces, which I think will change depending on the radius used to generate the meshes). In this project example, there are 265M original points in 6 Z+F 5010X scans (high resolution+quality low).

In this example I used Sequoia at 99% culled faces, using 5mm radius, which produced a mesh with 3.4M points and 7.2M faces.
1. Sequoia 99% culled.jpg
1. Sequoia 99% culled.jpg
3. Sequoia 99% culled, showing detail.jpg
4. Sequoia 99% culled, showing detail mesh.jpg
I am trying other projects, less than 1 per cent faces remaining.
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