Requirement: I have a dynamic point cloud, whose rendering rate changes per frame. The value of the point cloud is read from some I/O or file so you can consider that each frame a new values are uploaded from host to device. I have small code below from PCS example:- const scene = new Scene(engine…

Sure let me approach with custom mesh and implement it. Thank you. Closing this issue.

Yes, it is the same problem. Regarding drawing only some particles and not others, it seems it is not supported by PCS. What you can do is updating only some particles by passing a start/end index to the setParticles call but all the particles will still be displayed.

Thanks for confirming the first part. I will wait for the another next beta to test it. I believe that’s the case with PCS I am faced this issue and thought to double check. Closing this. Highly appreciate your help.

If I use Custom Meshes in place of PCS will it help or be the same case? Otherwise, what would be the best class to serve transient geometry(who’s vertex and vertex count changes per frame). I want to avoid constant allocation and deallocation per frame as it may drain performance. So my expectatio…

Yes, creating a custom mesh may be the solution. You would have to handle yourself the creation/updating of the vertex and index buffers.

Simple Point Cloud System not working on WebGPU

Bugs

giraphics February 21, 2022, 1:39pm 2

@Evgeni_Popov is the gl_PointSize is a culprit here? Is this bug a duplicate of Custom mesh with Point primitive does not renders in WebGL2 and gives error on WebGPU ?

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WebGPU StandardMaterial doesn't recognize pointSize Feature requests material , webgpu , point-cloud	10	312	February 5, 2025
Custom mesh with Point primitive does not renders in WebGL2 and gives error on WebGPU Bugs webgpu , webgl	3	840	February 21, 2022
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Simple Point Cloud System not working on WebGPU

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