Commits on Oct 10, 2022

1. Vulkan Clustered: Fix culling of negatively-scaled objects …

   Negatively scaled objects should be mirrored. This is already implemented, but it breaks when mirrored and non-mirrored instances of the same object are visible together.
   
   It turns out that the code that skips-over repeats in `RenderForwardClustered::_render_list_template` also skips the code that accounts for the culling mode of mirrored objects.
   
   The solution here is to consider the `mirror` flag when determining repeats. This might result in more draw commands than necessary since a mirrored object can split a group of non-mirrored instances in two.
   
   This problem doesn't appear in the mobile renderer because the repeat optimization isn't implemented there yet.
   
   The problem still appears in MultiMeshInstance3D in *all* renderers.
   
   Fixes godotengine#62879 and godotengine#58546.

   

   cooperra committed Oct 10, 2022
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