Splat scale feature

[Bishadkoju]

Hi, would it be possible to implement "Splat Scale" feature as in Unity GaussianSplatting Viewer .

Also, Instead of showing the mesh cursor, I would like to change the color of the splat that the mouse is hovering. How can i implement this ? Thank you.

[mkkellogg]

This would be a pretty easy thing to control through an API function, something like Viewer.setSplatScale(). I will try to add a function like that soon :)

[Bishadkoju]

Also , in the current implementation would it be possible to change the color of a single or multiple splats in runtime? could you guide me through it ? I'm trying to implement something like this feature (from supersplat). Thanks;

[mkkellogg]

I'm including a function to set splat scale in the branch I'm about to merge: https://github.com/mkkellogg/GaussianSplats3D/pull/177. The function is SplatMesh.setSplatScale() As for changing the color of specific splats, that will be more work, and I'll leave it up to you to implement that :) To do that you'd have to follow a similar approach as sending any of the other splat data to the shader. I would store a boolean to designate whether or not a splat is selected in one of those data textures.

[Bishadkoju]

Sure, thank you :)

[nosy-b]

Oo fun I added a setSplatScale on my code the other day :) Though I didn't find a way in the shader to make splats look like pointclouds when small (dot/circle and not ellipse), I didn't find a way to discard from a length to center quad nor force the scaleX to equal scaleY . if you got an idea that would be awesome @mkkellogg :)

[mkkellogg]

In the branch I'm about to merge (https://github.com/mkkellogg/GaussianSplats3D/tree/orthographic_projection) I'm adding a function to enable point-cloud rendering, where each splat is rendered as a circle: SplatMesh.setPointCloudModeEnabled(), which will hopefully solve that issue :)

[mkkellogg]

These methods are now in the latest release: v0.3.7. Let me know how they work out for you!

[mkkellogg]

I'm going to close this for now, let me know if you encounter any trouble with the updates!