[Perf] ResliceCursorWidget setImage(imgdataset); Setting data crashes above 120MB on iOS mobile devices

[linhuanfeng]

High-level description

Setting data crashes above 120MB on iOS mobile devices

Steps to reproduce

Setting data crashes above 120MB on iOS mobile devices

Detailed Current Behavior

Setting data crashes above 120MB on iOS mobile devices

Environment

• vtk.js version:"@kitware/vtk.js": "28.12.4",
• Browsers: all
• OS:ios

[finetjul]

Is this the widget that crashes or the display ?
Have you tried to only allocate vtkImageReslice (as many times as there are views) and without reslice cursor widget ?
The reslice cursor widget does not consume memory proportionaly to the image size (rendering is performed outside the reslice cursor widget).

[linhuanfeng]

        const reader = vtkITKImageReader.newInstance();
        reader.setFileName(fileName);
        await reader.parseAsArrayBuffer()

oom

[finetjul]

You might want to try with a VTI image that can be read by VTK.js (vtkXMLImageDataReader) without ITK.wasm.