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    empiire
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LIDAR scanns in A3D. How far can you take it?

Hi. 

we are currently working on a workflow for using LIDAR Scans in Augmented3d so we can better visualize whats going on on strage.

We did a few demos with Polycam exporting as a .glb and importing it directly into A3d which worked nicely.

Now we are wondering, how far we can take it. for example by scanning the whole house to have a photorealistic scale model in which we can place our lights. 

since our house is pretty big we will probably shoot way past 10.000.000 Triangles without and lights and im worried if its too much to handle for A3d, even with a suficient Visualisation PC, because of the software integration or soft limits in the software. 

Has anyone here done a really big LIDAR scan of their rig yet? how has it worked for you?

Heres a Screenshot of our small demo which already has 75k Triangles.

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    I have personally done a few lidar scans for venues, and can say that the scan itself isn't usable. What I did instead was brought the scan into a 3d editor and used the scan as a reference for a simpler model, and then took screenshots of the lidar model for texturing. It seemed to work fairly well, although I would be curious how others have done things like this. For scale, I would suggest, if possible, to rescan with some markers on surfaces that have a scale on them for reference (I use a checkerboard on 12x24" paper, where each square it exactly 1" by 1". I then use that for rescaling the lidar model to size prior to "tracing" with the modeling software (I use blender for that)

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    I have personally done a few lidar scans for venues, and can say that the scan itself isn't usable. What I did instead was brought the scan into a 3d editor and used the scan as a reference for a simpler model, and then took screenshots of the lidar model for texturing. It seemed to work fairly well, although I would be curious how others have done things like this. For scale, I would suggest, if possible, to rescan with some markers on surfaces that have a scale on them for reference (I use a checkerboard on 12x24" paper, where each square it exactly 1" by 1". I then use that for rescaling the lidar model to size prior to "tracing" with the modeling software (I use blender for that)

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  • 0 in reply to jeffrbeyer

    Thanks for your reply Jeff. 

    Ive also noticed that flat surfaces in lidar scans dont really come out flat at the other end. this doesnt bother me too much though since the main goal for me atleast is to have a photorealistic stage in A3d when looking from the FOH view.

    Is there another reason other than image quality/surface quality that makes you feel like the scan isnt usable directly in A3d.

    Just to minimize the effort, i will most likely use the scan as reference to draw simple walls since our stage is pretty big and it wouldnt be possible to scan it in one shot.

    If you dont mind me asking, how big where the venues you were scanning and what app did you use to scan?

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