Fix asset extraction for GpuAutoExposureCompensationCurve

[Breakdown-Dog]

Objective

• When I am running the example auto_exposure on the main branch. I get errors, and the auto exposure effect does not work correctly.

2026-02-04T05:36:29.462198Z ERROR bevy_render::render_asset: bevy_post_process::auto_exposure::compensation_curve::GpuAutoExposureCompensationCurve with RenderAssetUsages == RENDER_WORLD cannot be extracted: The asset type does not support extraction. To clone the asset to the renderworld, use `RenderAssetUsages::default()`
2026-02-04T05:36:29.462407Z ERROR bevy_render::render_asset: bevy_post_process::auto_exposure::compensation_curve::GpuAutoExposureCompensationCurve with RenderAssetUsages == RENDER_WORLD cannot be extracted: The asset type does not support extraction. To clone the asset to the renderworld, use `RenderAssetUsages::default()`

• I believe the reason is that GpuAutoExposureCompensationCurve is missing the take_gpu_data function from the RenderAsset trait.

• The code snippet that outputs error information (crates\bevy_render\src\render_asset.rs).

for id in needs_extracting.drain() {
  if let Some(asset) = assets.get(id) {
      let asset_usage = A::asset_usage(asset);
      if asset_usage.contains(RenderAssetUsages::RENDER_WORLD) {
          if asset_usage == RenderAssetUsages::RENDER_WORLD {
              if let Some(asset) = assets.get_mut_untracked(id) {
                  let previous_asset = maybe_render_assets.as_ref().and_then(|render_assets| render_assets.get(id));
                  match A::take_gpu_data(asset, previous_asset) {
                      Ok(gpu_data_asset) => {
                          extracted_assets.push((id, gpu_data_asset));
                          added.insert(id);
                      }
                      Err(e) => {
                          error!("{} with RenderAssetUsages == RENDER_WORLD cannot be extracted: {e}", core::any::type_name::<A>());
                      }
                  };
              }
          } else {
              extracted_assets.push((id, asset.clone()));
              added.insert(id);
          }
      }
  }
}

Solution

• Add take_gpu_data() function.

Testing

• The example auto_exposure works correctly.
• CI

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[kfc35]

Looks like a straightforward fix. Approving for correctness

[greeble-dev]

This was accidentally regressed by #21732. Fix seems good and I've tested before/after. Just requesting one change to make the fix smaller.

[greeble-dev]

Adding to 0.18.1 milestone as this was a regression from 0.17 -> 0.18.