bevy-glsl-to-spirv is 38 MB of source code

[jyn514]

Bevy version

f61e44d

Operating system & version

Ubuntu 20.04

What you did

git clone https://github.com/bevyengine/bevy && cargo check

What you expected to happen

Downloading bevy sources takes very little time.

What actually happened

Cargo takes over 38 MB to download the source code alone.

Downloaded 62 crates (48.4 MB) in 9.61s (largest was `bevy-glsl-to-spirv` at 37.9 MB)

[jyn514]

I haven't looked into why it's so big, but 38 MB seems pretty giant.

[GrygrFlzr]

The problem is that it’s delivering literal binaries. It’s possible to always compile from source, but that brings a penalty to compilation times.

[mockersf]

You can find more information, and the path forward for that in #1073

TL;DR:

• short term: provide easer support to shaderc (better compatibility and no binary to download, but more complicated setup)
• long term: replace bevy-glsl-to-spirv by naga
• hypothetical longer term? support rust-gpu

[james7132]

Closing this as all shader transpilation is now done via naga, as of the 0.6 render rework.