# Objective
Since #8446, example `shader_prepass` logs the following error on my mac
m1:
```
ERROR bevy_render::render_resource::pipeline_cache: failed to process shader:
error: Entry point fragment at Fragment is invalid
= Argument 1 varying error
= Capability MULTISAMPLED_SHADING is not supported
```
The example display the 3d scene but doesn't change with the preps
selected
Maybe related to this update in naga:
|
||
|---|---|---|
| .. | ||
| android-res/mipmap-mdpi | ||
| branding | ||
| data | ||
| environment_maps | ||
| fonts | ||
| models | ||
| pixel | ||
| scenes | ||
| shaders | ||
| sounds | ||
| textures | ||