バイオームデモ (Biome Demo)
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現実世界のバイオームの特性、環境からの影響、植物同士の関係に基づき、植物を配置する方法を見ていきます。この解説付プロジェクトでは、SideFX Labs からリリースされたアルファバイオームツールセットの各ツールを紹介しています。
この高度で科学に根差したシステムは、自然界の根幹をなす様々な営みを見本にしています。ユーザは、複数のバイオーム領域を生成し、それを使って最初の環境系アトリビュートを地形上に配置していきます。これらのアトリビュートは地形によって変化し、雨蔭や風への露出、土性、標高に伴う気温変化といった環境由来の様々な影響を再現します。その後、各々に適した気象条件や土壌を持つ領域に植物がマッチングされます。それらの領域では養分を巡り、周囲の植物との生存競争が繰り広げられています。
一部のバイオームツールには 20.5以降の Houdini が必要です。
コメント
spiderbr 1年, 7ヶ月 前 |
Thanks very much for that!
IsStuff 1年, 6ヶ月 前 |
I gave the tools a good go a few months ago. one thing I did at the end that I wished I did sooner was test my plants in a grid with temperature rising in X and precipitation rising in Z. this simple grid with not too many plants scattered showed me why some plants were not covering areas I thought they should. I could see where there were places where no plant would grow and when I blurred values in temperature and precipitation, it made inhospitable areas. I ended up tweaking some generic shrubs to fill in areas like that. Perfect for debugging
TravisFX 1年, 2ヶ月 前 |
Hi Bailey, I'm going through the example scene and I'm having trouble getting the instanced plants into Solaris from the SOP level. I have a hunch it has something to do with the way the instance paths are assigned to the points, or @instancepath attrib. When using the Plant Definition node and sourcing from disk it generates a path to the asset on disk, VS sourcing from a merge node it generates an op:* path to the imported assets. When merging in the instances using the direct file path to the asset, soloraris returns an error, but using the define plants from merge it seems to work fine.
Example:
Source "From Directory" @instancepath
= F:/git/SideFx/SideFXLabsExamples/projects/dryad/alpha/biome_demo/assets/mesh/SM_Alpine_Forest_Shrub_Growth_1.fbx
Source "From Merge Path" *Done inside of a lops Create Sop Node with megascan assets*
= op:/obj/Scatter/lopnet1/sopcreate1/sopnet/create/Var11_LOD0
Do you think an update to the Biome toolkit Example scene can include a Solaris setup?
Thanks!
baileyh 1年, 2ヶ月 前 |
Hi Travis,
Good find. It seems the instanced assets in Solaris will only work with operator paths or usd files. I will fix the referenced geometry and add a Solaris setup to the updated file. Thanks for bringing it to my attention.
Thanks,
Bailey
Aten 2週間, 3日 前 |
when I load either of those scenes I get a ton of warnings about 'Ignoring data for locked node:...' and no trees are visible. Also the HDA for plant definitions seems to have errors I am on latest labs and Houdini 21.0.631
cheers
baileyh 1週間, 1日 前 |
Hi Aten,
Weird. There is no locked node in the hip file. plant define, plant definitions file, and plant scatter have all upgraded to minor version 1.3. I've double checked the biome demo hip file and I see trees and no warnings on my machine but I'll have another developer double check on their machine. The tree assets are no longer embedded in the plant define hda so if you are opening an older hip file that uses opdef: references, you'll either need to downgrade plant_define to version 1.2 or preferably use version 1.3 and change the file path to point to assets in $SIDEFXLABS/geo.
If there are others seeing similar issues, please leave a comment.
-Bailey
baileyh 1週間, 1日 前 |
Another dev confirmed there were trees in the file. He did run into a segmentation fault and some UI warnings opening this 21.0.631 hip file in H22 but all was well after opening the file the second time.
tto-houdini 4日 前 |
Hey Bailey,
Thank you so much for the breakdown of these tools, I have been trying to figure out how to best use them! Is the practice file for Houdini 21.0.631? I am on 21.0.512, would there be any adaptability for that Houdini version? When I did open the file I got a bunch of errors and the tree references weren't working.
One major step I am held up on is the biome region assign, I can't see the guide geometry and it gets stuck on a cook. Would my HF be too dense? I tried the different versions of the tool but for every one of them it gets stalled out on the guide geometry cook.
Thank you for any help!
Charles
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