Can't dirty and cook, PDG for Unity Terrain 2020.3.34f1

Forums Houdini Engine for Unity Can't dirty and cook, PDG for Unity Terrain 2020.3.34f1

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slient: Member; 1 posts; Joined: 5月 2022; Offline

2022年5月17日 23:19

Hello, I have a problem, which can't be solved after checking a lot of information.
unity:2020.3.34f1, houdini:19.0.589
The first time I cooked, the result was correct. But i dirty&cook, and the result is wrong. At this point, the terrain will be flattened into a height map and the size will be reduced.
After checking, I found that the reason is that houdini's node added attributes other than mask and height to terrain, such as base, water, cliff, etc. If only the mask and height attributes are kept, I can normally dirty&cook.
How can I solve this problem? I'd appreciate any information!

Attachments:
FirstCook.png (337.2 KB)
DirtyAndCook.png (113.1 KB)


cgwill: Member; 7 posts; Joined: 8月 2022; Offline

2022年10月7日 11:49

I am having the same issue. Did you ever find a real solution to it? Thanks in advance.


grumiauxl: Member; 9 posts; Joined: 10月 2018; Offline

2022年10月7日 12:48

Did you try to blast other layers than height & mask just before your output? Other layers cames from Erode node I guess

Edited by grumiauxl - 2022年10月7日 12:50:10


cgwill: Member; 7 posts; Joined: 8月 2022; Offline

2022年10月14日 5:57

You are right, with blasting away the other layer it works. Some of those layers would be needed though for the texturing. But i guess i have to figure something out. Cheers


fayju: Member; 1 posts; Joined: 4月 2018; Offline

2022年11月7日 10:05

Hi guys I'm having the same issue. Has anyone found a work around? I need the other layers for texturing.

I feel like I used to be able to have more than the Height and Mask layers, but updated recently so is this a new bug?

Also I'm getting an error in the unity console -

Assertion failed on expression: 'spResult == PixelAccessReturnCode::kOk'
UnityEngine.TerrainData:SetAlphamaps (int,int,single)

Cheers for any help


swSharkBoy_02: Member; 10 posts; Joined: 9月 2019; Offline

2023年3月19日 6:02

I also have this problem, I only include layers I need for texturing:
I get the same error:

Assertion failed on expression: 'spResult == PixelAccessReturnCode::kOk'

Edited by swSharkBoy_02 - 2023年3月19日 06:37:53

Attachments:
Screenshot 2023-03-19 110053.png (498.4 KB)
Screenshot 2023-03-19 113727.png (1.2 MB)


swSharkBoy_02: Member; 10 posts; Joined: 9月 2019; Offline

2023年4月6日 2:52

Ill answer my own post, this was because the splatmap layers was not power of two. It's only the height that needs power of 2 +1


arjan_meerten: Member; 3 posts; Joined: 8月 2019; Online

2023年9月9日 11:55

swSharkBoy_02
Ill answer my own post, this was because the splatmap layers was not power of two. It's only the height that needs power of 2 +1

Thank you for this!

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