nan_color does not work for GLMakie.image

[MariusDrulea]

I have a matrix "x" containing floating point values. It also contains invalid values, all set to NaN. According to documentation of GLMakie.image, there is this nan_color atribute. By default the NaN values are rendered fully transparent when displayed. However, this does not work. I am using GLMakie 0.4.0.

x = rand(50, 50)
x[15:25, :] .= NaN
image(x)

If I try heatmap(x) instead, then yes, I do get the desired transparency.

[MariusDrulea]

Update: NaN were initially displayed as black, but now the same code gives an error:

x = rand(50, 50)
x[15:25, :] .= NaN
image(x)

Error showing value of type Makie.FigureAxisPlot:
ERROR: Looking up a non-finite or NaN value in a colormap is undefined.

[SimonDanisch]

What backend is this?

[MariusDrulea]

It's GLMakie

[MariusDrulea]

Just tested today with the 0.16.5 release and NaN are rendered transparent by image(). nan_color property also works.
@SimonDanisch thanks :)