Bevy 0.18 release notes: PBR fixes#2341
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| There were two core issues: | ||
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| 1. Point/area lights had an overly bright specular component. | ||
| 2. For our initial PBR shader, we chose to do "roughness dependent fresnel", as [defined here](https://bruop.github.io/ibl/). This generally did not behave the way we wanted it to, so we switched to the more direct approach ... using the "typical" fresnel term directly. |
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Fyi, this was just for EnvironmentMapLight. Other light sources behaved fine.
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