Houdini 17.5 / PilotPDG 発表時に、機械学習での PDG の使用事例を、データ合成、データ拡張そしてハイパーパラメータ空間検索の形で紹介しました。 ここでは、PDG によるデータ合成と拡張の側面について詳しく説明しています。


機械学習でのハイパーパラメータ空間検索の概念とアイデアは、このレッスンの範囲外になります。


浸食

erosion_synthesis.hipを開き、提供されているアセットが正しくインストールされていることを確認してください (Assets -> Install Asset Library)。 /obj/topnet1に移動し、imagemagick ノードをクックします。


地形生成

PDG-ML-TrainingData-DL.hipを開き、提供されたアセットが正しくインストールされていることを確認してください (Assets -> Install Asset Library)。 /obj/TOP_PDG_ML_TrainingData に移動し、imagemagickノードをクックします。

ファイルのダウンロード

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SideFX
SIDEFX

For over thirty five years, SideFX has been providing artists with procedural 3D animation and visual effects tools designed to create the highest-quality cinematic results. We are passionate about what our customers do because our roots are in production, both as artists and as pioneering technical innovators.

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コメント

  • wesw 5 年, 8 ヶ月 前  | 

    Been waiting for this one, thanks for releasing!

  • pclaes 5 年, 8 ヶ月 前  | 

    Thank you for these!
    Would be great to share some links/pointers in regards to:
    "The topic of hyper-parameter space search in Machine Learning covers concepts and ideas that lie outside the scope of this lesson. "

    For now I'm going to start learning more about pytorch. and machine learning.
    https://pytorch.org/tutorials/

    Would be great to share the second part specific to the machine learning portion too. Or put a masterclass together on that - I would think a lot of houdini power users would want to extend Houdini/PDG with machine learning knowledge.

  • zhaoxinchen007 5 年, 8 ヶ月 前  | 

    I can not read flt file

  • mobel 5 年, 8 ヶ月 前  | 

    @pclaes: I can recommend the 5 course intro to machine learning by Andrew Ng. He goes into the barebone maths. Course one is mostly about backpropagation and fundamentals, at the end of course 1, but specifically during course 2, it is all about hyper parm optimization and tuning. Very nice one: https://www.coursera.org/specializations/deep-learning

  • pclaes 5 年, 8 ヶ月 前  | 

    Thanks for the recommendation Patrick, I will check out the coursera lectures.

  • mobel 5 年, 8 ヶ月 前  | 

    On another note: I seem to be having the same problems as zhaoxinchen007 , unable to read USGS *.flt files. Is this something that Houdini should be able to do? Tried to convert the flts to dxf files but couldn't find a suitable converter right away...

  • takanori 5 年, 8 ヶ月 前  | 

    Houdini supports .flt file after 17.5.174. You should upgrade to the latest daily build.
    https://www.sidefx.com/changelog/?journal=&categories=&body=flt&version=17.5.174&build_0=&build_1=&show_versions=on&show_compatibility=on&items_per_page=

  • sascha 5 年, 1 ヶ月 前  | 

    Thanks for making them available!

  • FranciscoMurias 4 年, 10 ヶ月 前  | 

    Where can we find more about developing a ML Tool like the one shown in the second tutorial? Is the source code available somewhere?
    I would love to find more about its development and learn to do something similar with ML

  • dpernuit 4 年, 6 ヶ月 前  | 

    Just a quick note for those of you looking to use the Terrain_Gen sample with H18:
    - you will actually need to replace the "decompress_downloaded_files" with a new one, as the file_decompress node has changed between H17.5 and H18.0.
    Just create a new decompress TOP, and copy the value of the "Output Folder" param 1from the old file decompress node.

    You should be able to cook the graph without any issue after that.

  • Eche 3 年, 7 ヶ月 前  | 

    The example files only contain the preprocessing steps, none of the ML implementation shown in the video.

  • pixelpicnic 2 年, 4 ヶ月 前  | 

    The example urls of the USGS data appear to no longer work.
    What format does this topographical data come in?
    Are there updated links, or something similar I can try with this example?
    Thanks!

  • CoreyMetcalfe 1 年, 10 ヶ月 前  | 

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