Delayed LOD / tile enabling when using large clipping areas

[Revmatek]

Delayed LOD / tile enabling when using large clipping areas

[daleeidd]

Thanks for the detailed report! It was indeed a bug. LOD data should always blend out when nearing the end of the LOD chain. This isn't ideal as some configurability would be good but fixing it is good enough for now.

[daleeidd]

Yes, I understand the implications of the change.

Anyway, the future wasn't that far away as I have already done it.

[Revmatek]

Thanks for the detailed report! It was indeed a bug. LOD data should always blend out when nearing the end of the LOD chain. This isn't ideal as some configurability would be good but fixing it is good enough for now.

I took at look at this just now, and it does seem to fix the delay, however it also seems to introduce a problem where the clipping area is no longer respected and the tiles can appear inside the area when below:

Below:

Above:

Its easier to see with a cube at the edge. Without the cube its hard to notice, but still happens.

[daleeidd]

That's expected. Default behaviour for all LOD data is to blend out between last set of tiles. A better approach for certain data would be to just prevent the data from bleeding over into the extents which is something I will look at doing in the future.

[Revmatek]

That's expected. Default behaviour for all LOD data is to blend out between last set of tiles. A better approach for certain data would be to just prevent the data from bleeding over into the extents which is something I will look at doing in the future.

I think understand what you are saying. To clarify though, it still requires setting the LOD higher (7->8) in my case. To ramble on a bit, I cannot use the clipping areas if it shows inside the area because it would appear water is leaking through something such as a water dam / drydock. So I am ok just setting the LOD higher to fix it for my needs. I don't think there is a case where this would show correctly in such a scenario with this change, adjusting the LOD in some way or maybe like a flag... but maybe that wouldn't really help. I'm not really sure what the answer is, but blending by default (at least for me) will cause problems, it works fine with LOD set to 8 instead of 7, delay. I guess I was expecting it to work with LOD 7 since it appeared correctly previously but was delayed, now it will not appear correctly unless I use 8. But I am ok using 8 so maybe it is a nonissue, but it feels sorta like trade between it not showing one part vs another at LOD 7 and both require a higher LOD (maybe that is fine).