• Use external converter and enable Pack colors (and use v3 material with packed in the name)
• Use LODS (Start distance: points start decreasing at this distance, End distance: 0 points will be displayed after this distance)
• Use smaller point size
• Use smaller tile size, if your cloud is very dense in small area (the bigger the single tile, the slower it is)
• If loading causes frame lags: Adjust GPU upload steps. Smaller value cause more frame jumps (since it has to upload data to gpu from main thread) larger values make it smoother, but then it takes more frames to fill data.

• Try using file extensions that match the data: https://github.com/unitycoder/UnityPointCloudViewer/wiki/Import-Formats
• So if your data is "XYZRGB", use "filename.xyzrgb" (default method for detecting file formats is using file extension)

• https://github.com/unitycoder/UnityPointCloudViewer/issues/142

• Check https://github.com/unitycoder/UnityPointCloudViewer/issues/137
• And https://github.com/unitycoder/UnityPointCloudViewer/issues/125

• See URP issue above
• Or, test disabling other plugins from scene (like Graphy, or anything that uses UI or separate cameras for rendering)

Make sure you build x64 (64bit bit exe), instead of 32bit.

Adjusting android material(shader) pointsize is not visible in the editor, only in builds.
If start unity with commandline params: -force-glgore or -force-gles, then it might work in editor too.
https://docs.unity3d.com/Manual/CommandLineArguments.html

Delete scalars in CloudCompare (forum post)

"LAS Import might fail - only pointDataRecordFormat #2 & #3 are supported (Your file is 0)" Its unknown las format, you need to open it in CloudCompare (or other external tools), then save as LAS 1.3/1.4 format.

"Assets\PointCloudTools\PointCloudViewerDX11\Scripts\PointCloudViewerTilesDX11.cs(1025,28): error CS0227: Unsafe code may only appear if compiling with /unsafe. Enable "Allow 'unsafe' code" in Player Settings to fix this error."

Need to enable [x] Allow 'unsafe' Code in Project/Player settings

filename.bin cannot be opened with ReadAllBytes(), it might be too large >2gb UnityEngine.Debug:LogError(Object)

Limitation in the readallbytes, but in the next update (around summer 2019) can load these larger files too. https://github.com/unitycoder/UnityPointCloudViewer/issues/1

Check if your data uses commas instead of dots (only dots are supported)

// bad data
2295027     
683,099976 880,200012 5544,700195
704,700012 879,400024 5538,500000

// good data
2295027   
683.099976 880.200012 5544.700195
704.700012 879.400024 5538.500000

• If you are using DX12 mode, its not supported in most shaders
• Make sure your point cloud gets scaled and offset near 0,0,0 (otherwise it might be too far to see/find) or too big (if data is millimeters and its not scaled to unity meters)

• When converting data, set -minpoints= value (its default to 500 or 1000, so any tile that has less than that points, is skipped)

• For V3 must enable -randomize=true in the converter

• Disable SRP Batcher (from urp renderer, enable show additional options: https://docs.unity3d.com/Manual/SRPBatcher.html )

• Check if your Unity titlebar has text "<DX11>", if it says "<DX11 on DX10GPU>" that won't work
• Also set your Camera background to white, just in case the points are black
• Points can also far away from view, try using (x) AutoOffset near 0,0,0
• Points might be scaled too much (so they become one single point in scene), try without scaling or with different values

• You need to download the custom DX11 versions, more info here

• Use "UnityCoder/PointCloud/Mesh/AndroidColorSize" shader for webgl (shader is in "PointCloudViewerPro\Assets\PointCloudTools\Shaders\Mesh\Mobile" -folder)

• Check console for errors (if there are errors and you have "break on error", it stops playing and cloud wont load)

The referenced script on this Behaviour (Game Object '') is missing! The referenced script (Unknown) on this Behaviour is missing!

If you are in BIRP, then urp and hdrp resources can be deleted. (they cause those issues).

• Import Unity UI package into project

• Then need to add HDRP reference manually into that missing assembly definition file (Assets/PointCloudTools/SRP/HDRP/AssemblyDefinitionHDRP.asmdef)
• info https://github.com/unitycoder/UnityPointCloudViewer/issues/151#issuecomment-2872558253

• Place your v3 tile files in StreamingAssets/ with dot in the foldername (so its not visible and doesnt get .meta files generated) ".mycloud/" etc.

Enable [x] Detect intensity range (or use [x] custom intensity), to correctly scale your intensity values for packed points.

• in PointCloudTilesViewer inspector: Disable [x] Use URP Custom pass (if you dont have custom pass in your URP renderer)
• Set "Minimum Tile Point Count" to 0 in the viewer inspector (in case your tiles have less than the default 256 points)