Write release notes for anamorphic bloom (#2071)

Author: alice-i-cecile

content/news/2025-XX-XX-bevy-0.16/anamorphic-car-bloom.png

@@ -1,4 +1,12 @@
-<!-- Anamorphic Bloom -->
-<!-- https://github.com/bevyengine/bevy/pull/17096 -->
+Bloom is that soft glow bleeding out from bright areas of light: in the real world, this is caused by sensors on your camera (or eyes) becoming fully saturated.
+In games, it's a powerful artistic tool for creating everything from cyberpunk neon signs to tastefully glowing windows to juicy geometrically-inspired arcade games.
 
-<!-- TODO -->
+Bevy has had bloom since version 0.9, but we're giving artists another simple lever to tweak: the ability to stretch, squash and otherwise distort the effect by setting the 2-dimensional `scale` parameter on the [`Bloom`] component on your camera.
+
+![A realistic high-polygon model of a fancy black Porsche 911 demonstrating anamorphic bloom in its stretched-out tail light glow. Rendered in Bevy 0.16!](anamorphic-car-bloom.png)
+
+When heavily skewed (usually horizontally), this effect is known as **anamorphic bloom**.
+This effect is associated with a cinematic, futuristic vibe, and emulates the unusual geometry of certain film cameras as they compress a wider image onto narrower film.
+But, regardless of why it occurs, it simply looks neat!
+
+[`Bloom`]: https://dev-docs.bevyengine.org/bevy/core_pipeline/bloom/struct.Bloom.html