Creating an unrelated buffer stops text from rendering

[MichaelBaker]

Hello, I'm not sure if this is a problem with wgpu, wgpu_glyph, or my understanding of wgpu so I'm posting it to both projects.

I've created a minimal runnable example here: https://github.com/MichaelBaker/wgpu-glyph-example

This is the line that causes the problem. If you comment this line out, the text renders correctly: https://github.com/MichaelBaker/wgpu-glyph-example/blob/5bcd7200d1a27df7add4a68b744b41df9b1de681/src/main.rs#L70

My best guess is that creating a buffer here corrupts or invalidates wgpu_glyph's cached transform buffer because if I remove this check from the pipeline it starts rendering correctly:

wgpu_glyph/src/pipeline.rs

Line 353 in e53659e

if transform != pipeline.current_transform {

Otherwise this library has worked great so thanks for putting it together.

I'm on a Macbook Pro running macOS 10.15.3 (Catalina).

Here is the wgpu issue: gfx-rs/wgpu-rs#288