WGLMakie animations?

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1

Hi,

I use (GL)Makie for animations. When I replace using GLMakie with using WGLMakie its fails:

 ERROR: type GenericIOBuffer has no field io

Is it possible to display animations via WGLMakie ? Is there an example available ?

Thank you for your help.
Laurent

2

I think I fixed that in the most recent release. In general, it helps a ton, if you can post a small example to reproduce the error

3

Hi Simon,

thank you very much for your reply. I apologize for the missing MWE: I though that the answer might have been that this feature was not covered by WGLMakie.

Here is the MWE :

using WGLMakie # OK with GLMakie

function test(n,nh)
    scene = Scene()
    x = [(i-1)*2π/(n-1) for i in 1:n]
    y = sin.(x)
    xn = Node(y)

    scatter!(scene,lift(x -> x , xn),markersize=5,color = :red)
    lines!(scene,lift(x -> x , xn),color = :blue)

    record(scene, "output.mp4", 1:nh) do j
        y .= sin.(x .+ 2π*j/nh) 
        xn[] = y 
    end
end

test(100,100)
Pkg Status 
(MovieMakie.jl) pkg> status
Status `~/Projects/Spring.jl/MovieMakie.jl/Project.toml`
  [537997a7] AbstractPlotting v0.14.2
  [497a8b3b] DoubleFloats v1.1.15
  [e9467ef8] GLMakie v0.1.20
  [be4d8f0f] Quadmath v0.5.4
  [276b4fcb] WGLMakie v0.2.10
versionfino() 
julia> versioninfo()
Julia Version 1.5.3
Commit 788b2c77c1 (2020-11-09 13:37 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-9.0.1 (ORCJIT, skylake)
Environment:
  JULIA_EDITOR = "/snap/code/52/usr/share/code/code"
  JULIA_NUM_THREADS =

BTW, is there a simple way to skip the movie generation and only enjoy the animation ?

4

Yes, just replace record with this:

display(scene)
foreach(1:nh) do j
        y .= sin.(x .+ 2π*j/nh) 
        xn[] = y
       yield()
end
2 Likes
5

Ach, yield() of course.
Thank you very much again !

When you mention the latest version, does this mean that my MWE should work with it ? I think that I use the latest release and I obtain an error…

6

The “live” display is OK with, display,yield and WGLMakie.
Thank you again !