Three.js: Size capped at 256 for PointsMaterial

[Karolusrex]

Description of the problem

Any value above 256 for the "size" parameter of PointsMaterial is not respected. Instead, the actual size will be capped at 256.

The problem can be reproduced by running the example with billboard points and then changing the size parameter at line 57: https://github.com/mrdoob/three.js/blob/master/examples/webgl_points_billboards.html#L57.

Three.js version

• dev
• r108

Browser

• [x] Chrome

OS

• [x] Linux

[Mugen87]

Can you please report what values are logged with the following fiddle:

https://jsfiddle.net/b89njg3d/

[Karolusrex]

Float32Array(2) [1, 255]

[Mugen87]

In this case you hit a WebGL/hardware limitation. Please follow the advices in this issue: https://github.com/mrdoob/three.js/issues/293#issuecomment-1450344

[Karolusrex]

Thank you for the information. I've been googling quite some time without finding anything on this. I think it could be valuable to include this in the documentation as a sidenote for the PointMaterial size.

[Mugen87]

Feel free to add a note if you like 👍

[mrdoob]

@Karolusrex here's the link if you would like to document it:

https://github.com/mrdoob/three.js/edit/dev/docs/api/en/materials/PointsMaterial.html