macOS intel with integrated gpu - strange shadows artefacts

## Bevy version

Current main de8edd3165c379e05aabb38359b3f4b97f46540a

## Operating system & version

macOS on an intel mac with an integrated GPU
not reproduced on an intel mac with a AMD Radeon Pro 5300M or on an arm mac

## What you did

`cargo run --example 3d_scene_pipelined --release`

## What you expected to happen

To have it display properly

## What actually happened

https://user-images.githubusercontent.com/8672791/145784752-a9d5228a-a214-4e47-88d4-a107b2c20663.mp4

## Additional information

I captured a gpu frame on the intel mac, loading it on the arm mac removes the artefacts from the frame