ImageGLView.data is a Float64Array which WebGL does not support

[pllim]

Loading an astronomical image into Imviz in Jdaviz triggers this, as noticed by @rosteen . Not sure where the fix should be.

bqplot-image-gl/js/lib/imagegl.js

Lines 286 to 289 in bd7bac1

	} else if(data instanceof Float64Array) {
	console.warn('ImageGLView.data is a Float64Array which WebGL does not support, will convert to a Float32Array (consider sending float32 data for better performance).');
	data = Float32Array.from(data);
	type = THREE.FloatType;

[pllim]

Maybe here? 🤷

https://github.com/glue-viz/glue/blob/ad14432229255dc31c5756434cc18bf14657c92b/glue/core/component.py#L143

[mwcraig]

I think the fix is to convert the data to float32 on the python side before sending the data to glue and friends...

[mwcraig]

Actually, maybe that isn't it....I see this if I create an image mark without any data. Setting the data later doesn't seem to generate a complaint.