Forum: help

RE: rgl.snapshot() rendering only part of 3D model [ Reply ] By: Duncan Murdoch on 2020-02-07 19:15	[forum:47373]
I can't think of what might be causing your problem, other than perhaps a buggy video driver. I'm using the same Ubuntu version in VirtualBox on a Mac, and it works fine with the new code.

RE: rgl.snapshot() rendering only part of 3D model [ Reply ]
By: R van velzen on 2020-02-07 18:42

[forum:47372]

test.png (9) downloads

Thanks for getting back to me and making changes to the code. I ran the following and unfortunately the issue remains (see attached output png):

devtools::install_version("rgl", version="0.100.47", repos="http://r-forge.r-project.org")
library(rgl)
x <- sort(rnorm(1000))
y <- rnorm(1000)
z <- rnorm(1000) + atan2(x, y)
plot3d(x, y, z, col = rainbow(1000))
par3d(windowRect = c(0,0,600,600))
Sys.sleep(1)
rgl.snapshot("test.png")

For what it's worth: this is not an issue on Mac OSX Catalina so I am able to generate rendered images on my macbook but it would be ideal if it worked also on my Linux workstation that is much faster.

Thanks again

RE: rgl.snapshot() rendering only part of 3D model [ Reply ] By: Duncan Murdoch on 2020-02-07 15:31	[forum:47370]
I've committed some changes that should make the snapshot method more reliable. Could you try version 0.100.47, and see if this helps with your issue?

RE: rgl.snapshot() rendering only part of 3D model [ Reply ]
By: R van velzen on 2020-02-06 06:47

[forum:47369]

Thanks for the fast support. However, adding a wait does not resolve my issue (also, I normally called the commands one by one in Rstudio so that there was already a 'manual' wait between the calls.

Installing from R-forge also does not resolve the issue.

install.packages("rgl",repos="http://r-forge.r-project.org")
library(rgl)
x <- sort(rnorm(1000))
y <- rnorm(1000)
z <- rnorm(1000) + atan2(x, y)
plot3d(x, y, z, col = rainbow(1000))
par3d(windowRect = c(0,0,600,600))
Sys.sleep(1)
rgl.snapshot("test.png")

Could there be some other issue?

Thanks again

RE: rgl.snapshot() rendering only part of 3D model [ Reply ]
By: Duncan Murdoch on 2020-02-06 00:25

[forum:47368]

This looks like a bug that has been fixed in the unreleased version. I think the problem is that the change to the size of the windowRect happens slowly, and rgl proceeds to the snapshot before it is complete.

I get the right output if I insert Sys.sleep(1) there:

library(rgl)
x <- sort(rnorm(1000))
y <- rnorm(1000)
z <- rnorm(1000) + atan2(x, y)
plot3d(x, y, z, col = rainbow(1000))
par3d(windowRect = c(0,0,600,600))
Sys.sleep(1)
rgl.snapshot("test.png")

The unreleased version has the wait built in; if you install from R-forge you should see things working properly.

rgl.snapshot() rendering only part of 3D model [ Reply ]
By: R van velzen on 2020-02-05 22:36

[forum:47367]

test.png (11) downloads

I am on Ubuntu 18.04.3 LTS using R version 3.6.2. When I call plot.3d() an R-X11 window opens to show the RGL device and renders the 3D model. Then, when I call rgl.snapshot() an image is rendered in the R plot window. However, this only shows a small part of the entire model.

This is true with my usual setup running R from Rstudio Version 1.1.463. It is also true when running R directly from the terminal.

Below is a minimal example showing this issue on my system:
library(rgl)
x <- sort(rnorm(1000))
y <- rnorm(1000)
z <- rnorm(1000) + atan2(x, y)
plot3d(x, y, z, col = rainbow(1000))
par3d(windowRect = c(0,0,600,600))
rgl.snapshot("test.png")

the resulting output is attached.

Any advice on how to resolve this issue?

Thanks, Robin