Bad rendering of colored "sphere" symbols in html outputs

dmurdoch / rgl

rgl is a 3D visualization system based on OpenGL. It provides a medium to high level interface for use in R, currently modelled on classic R graphics, with extensions to allow for interaction.

https://dmurdoch.github.io/rgl/

GNU General Public License v2.0

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Bad rendering of colored "sphere" symbols in html outputs #135

Closed sdray closed 3 years ago

sdray commented 3 years ago

IDear all.

Thanks for your excellent work on rgl. For some courses, I use some rgl code in Rmd documents. I notice that the rendering of 3D plots has been modified so that representations with type = 's' returns black circles instead of colored spheres. See for instance the page at https://dmurdoch.github.io/rgl/articles/WebGL.html

Do you know how to solve this problem (graphics in rgl window are correct).

Cheers

dmurdoch commented 3 years ago

I don't see the issue you're talking about -- the spheres display properly for me. Could you be more specific, and/or include a screenshot of what you're seeing?

sdray commented 3 years ago

Sorry for the partial description. I did not know if the problem was related to building or the display of the plots. It seems that it is the display that did not work well. Here is what I obtain:

I obtain the same black circles on Firefox 92.0, Chrome 93.0.4577.82 and Rstudio Viewer on my fresh install (July) of Ubuntu 20.04.3 LTS

Sorry to bother you, as it seems to be more a system/browser problem than an rgl issue.

dmurdoch commented 3 years ago

That's likely an issue with the GPU driver. You might get some kind of hint about it if you look at the browser console log.

It could still be an rgl issue: I may be making assumptions that don't hold on your system, but I don't really know what they would be.

You could try the Github version. There has been one bug fix that might be relevant:

shade3d(), wire3d() and dots3d() overrode "front" and "back" material settings in mesh objects.

though I kind of doubt it.

sdray commented 3 years ago

Thanks. I think that you are right. I have a new dell laptop and it seems that drivers for GPU are not (yet) fully available. I tried to update the BIOS, update the OS (21.04) and rgl from github but no changes. I think that I should wait for new drivers for ubuntu.

Thanks you answer. Cheers