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# Objective - Fixes https://github.com/bevyengine/bevy/issues/16556 - Closes https://github.com/bevyengine/bevy/issues/11807 ## Solution - Simplify custom projections by using a single source of truth - `Projection`, removing all existing generic systems and types. - Existing perspective and orthographic structs are no longer components - I could dissolve these to simplify further, but keeping them around was the fast way to implement this. - Instead of generics, introduce a third variant, with a trait object. - Do an object safety dance with an intermediate trait to allow cloning boxed camera projections. This is a normal rust polymorphism papercut. You can do this with a crate but a manual impl is short and sweet. ## Testing - Added a custom projection example --- ## Showcase - Custom projections and projection handling has been simplified. - Projection systems are no longer generic, with the potential for many different projection components on the same camera. - Instead `Projection` is now the single source of truth for camera projections, and is the only projection component. - Custom projections are still supported, and can be constructed with `Projection::custom()`. ## Migration Guide - `PerspectiveProjection` and `OrthographicProjection` are no longer components. Use `Projection` instead. - Custom projections should no longer be inserted as a component. Instead, simply set the custom projection as a value of `Projection` with `Projection::custom()`. |
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Bevy Animation
