i control a HDA by script. In some loops i set parameters and do a recook followed by a rebuild (See https://www.sidefx.com/forum/topic/67971/). But the rebuild doesn't reset the AssetCookStatus. After the rebuild it's set to COOKING (Set in StartHoudiniCookNode), but should be NONE for recook to work.
Hmm, that sounds like a bug. You shouldn't force set the cook status because it is there to make the Recook and Rebuild properly finish (otherwise you can end up doing a Rebuild before a Recook is finished which guarantees a bad state). Do you have a reproducible HDA that you can submit with a bug report?
seelan Hmm, that sounds like a bug. You shouldn't force set the cook status because it is there to make the Recook and Rebuild properly finish (otherwise you can end up doing a Rebuild before a Recook is finished which guarantees a bad state). Do you have a reproducible HDA that you can submit with a bug report?
Thanks.
The HDA doesn't matter in this case, could be anything, e.g. just a simple heightfield. In unity you can reproduce this problem with:
HEU_HoudiniAsset houdiniAsset; ... houdiniAsset.RequestReload(false); // -> Now we have AssetCookStatus.COOKING houdiniAsset.RequestCook(true, false, true, true); // Fails because it required AssetCookStatus.NONE
I debugged this a bit more. It seems the problem is inherent to the current implementation of the unity plugin. Both methods “RequestCook” and “RequestReload” in “HEU_HoudiniAsset” have the flag “bool bAsync” in their signature. But if you look closer at the possible code paths you find some hardcoded “bAsync = true”. As a result if you want to make the calls blocking they simple aren't in all cases.
The steps i tried in code:
* Rebuild the asset * Loop over all tiles (have a exposed parameter for tilesplit node) * Cook the current tile
This lead to:
* Rebuild returned, but some parts were still running (due to bAsync = true in some code paths) * Cook can't start because AssetCookStatus says it is still not finished
I sent this update to the opened bug report.
My next step is to try the new EditorCoroutines unity package and to wait for the status to be NONE to be able to proceed.
So this is the Recook step in the Rebuild cook where it applies the parm presets, then cooks again. It should be the blocking Recook, not the async version. If you make this change, does it solve your issue?
Also I believe this is the only spot where a blocking cook becomes async. Let me know if there are other spots.
