trying to render emojis causes system freeze about vello HOT 4 CLOSED

It's very hard to diagnose. Can you say more about what you're running it on?

I do have one place I'm seeing GPU timeouts, which is #139. I started digging into it but have put it on the back burner for now.

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so made sure that the thing panics before rendering to avoid system freezes. seems like the problem is that the glyph only provides a bitmap and no outlines which isn't handled and then causes a ctx.fill_glyph without a glyph being encoded. Letting make_path return None doesn't render the emoji, but it prevents a freeze.

next question would be, how to go about rendering the bitmap?

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There is FillImage support in the shaders, but the CPU-side support for it is currently missing. I will add it, but no guarantees when.

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Since this issue was opened, we've migrated to wgpu (in #193)

I think things are likely to be different enough since then, and since no reproduction was reached, I'm going to close this out.

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