Skip bloom rendering if HDR is disabled #15856
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# Objective Ensure that components that are conditionally extracted do not linger in the render world when not extracted from the main world. ## Solution If the `ExtractComponent` returns `None`, we'll remove the render world component. I think this is the most sensible behavior here. In the future if there really is a use case for keeping the previous render component around, we could add a `Option<Self::Out>` parameter for the previous render component to the method, or something similar. I think that this follows the principle of least surprise here relative to what `None` would suggest and the way that render nodes are typically written. The alternative would be to add an `enabled` field to pretty much every camera settings component, or duplicate the extraction condition as #15856 does. ## Testing `transmission` no longer crashes. ## Migration Guide Components that implement `ExtractComponent` and return `None` will cause the extracted component to be removed from the render world.
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Objective
camera.hdrwhile havingBloomcomponent, which can be reproduced withtransmissionexample where you can toggle it withHkey. Several examples appear broken following recent changes #15570 (comment)Bloomcomponent is conditionally extracted here, so before retained rendering world the component existed in rendering world only when HDR is enabled.Solution
!camera.hdr.It seems that conditional extraction is no longer a valid pattern, because
extract_componentreturningNonewill keep the previous value if it existed.Testing
transmissionexample no longer crashes when toggling HDR