Use multidraw for shadows when GPU culling is in use. #16692
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This patch makes shadows use multidraw when the camera they'll be drawn to has the `GpuCulling` component. This results in a significant reduction in drawcalls; Bistro Exterior drops to 3 drawcalls for each shadow cascade. Note that PR bevyengine#16670 will remove the `GpuCulling` component, making shadows automatically use multidraw. Beware of that when testing this patch; before bevyengine#16670 lands, you'll need to manually add `GpuCulling` to your camera in order to see any performance benefits.
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Testing the example runs before merging <3 |
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This patch makes shadows use multidraw when the camera they'll be drawn to has the `GpuCulling` component. This results in a significant reduction in drawcalls; Bistro Exterior drops to 3 drawcalls for each shadow cascade. Note that PR bevyengine#16670 will remove the `GpuCulling` component, making shadows automatically use multidraw. Beware of that when testing this patch; before bevyengine#16670 lands, you'll need to manually add `GpuCulling` to your camera in order to see any performance benefits.
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This patch makes shadows use multidraw when the camera they'll be drawn to has the
GpuCullingcomponent. This results in a significant reduction in drawcalls; Bistro Exterior drops to 3 drawcalls for each shadow cascade.Note that PR #16670 will remove the
GpuCullingcomponent, making shadows automatically use multidraw. Beware of that when testing this patch; before #16670 lands, you'll need to manually addGpuCullingto your camera in order to see any performance benefits.