Incorrect transformations after origin update for a few frames

[manuel-kroeter]

Whenever an origin update happens, you can notice some incorrect jumps for a few frames. You can reproduce it with the attached example by pressing move camera twice.

index.html

origin_update_jump.webm

Note: Problem does not appear with stochastic splat rendering.

[mrxz]

I did some debugging and it seems that when an new accumulator is allocated there might still be in-flight sorting operation associated with the previous accumulator. When the sorting completes it swaps out the PackedSplat texture used for rendering, causing a mismatch.

This would explain why it doesn't happen with stochastic splat rendering as there won't be any ongoing sorting operation.

[manuel-kroeter]

Thanks, looking forward to a fix for this and the other issue since they are basically blocking any large-scale tiling / LOD implementation based on spark.

[dmarcos]

Fixed by #200