How TOPs Actually Work in Houdini (PDG) | Procedural Dependency Graph | Image Manipulation Tutorial скачать в хорошем качестве

How TOPs Actually Work in Houdini (PDG) | Procedural Dependency Graph | Image Manipulation Tutorial

In this video I am going to show you how TOPs actually work and go through the official "Tutorial 2 Image Manipulation" from Houdini documentation, clarify a few things, and point out some challenges and issues with the original documentation and show you the solutions. This is a very technical walkthrough and involves things like shell processing, python scripting and command line usage. Contents 00:00 Welcome =========== Basic Concepts =========== 00:50 What is PDG Really - A Batch Processing Framework 01:45 How Manually Command Line Processing Work 03:22 ImageMagick Command Line Usage 05:20 "Node Based Command Processing" 05:45 ImageMagick TOP Node 06:22 Configure ImageMagick Binary for ImageMagick TOP Node 07:19 Overview of Available TOP Node Operations 09:50 Understanding TOP Concepts 10:13 File Pattern TOP Node 11:45 The Two Kinds of Objects/Entities TOP Deal With 13:00 File Path Syntax Stuff 14:48 Inspect Nodes with Python (Python Shell) `hou` and `pdg` 15:00 `hou` Package API 16:38 `pdg` Package API 18:14 localVariables() and localAttributes() API =========== The Actual Tutorial =========== 18:55 Tutorial Overview 20:04 Software Installation (ffmpeg and imagemagick) 20:10 imagemagick 20:22 ffmpeg 21:12 Example Image Archives 21:35 Tutorial Outputs 22:07 General Setup and Interface Layout Overview 22:42 Walkthrough: File Pattern (Split Files into Separate Items) 24:40 Understanding Work Items & "Work Streams"/Threads/Processes 26:35 Walkthrough: File Decompress 27:00 Single Process vs Many Processes 28:27 Tutorial Walkthrough: Step 1 - Convert Images with Image Magick & Two Challenges 29:54 Convert Many Image in A Single Work Item vs Converting A Single Image At A Time 33:30 Input Attributes (on ImageMagick) 51:44 File Compress TOP Node 35:30 How Everything Works, Really, In A Single Sentence 36:30 Troubleshooting Attribute Name Reference in File Path 40:11 Tutorial Walkthrough: Step 2 - Montage Generation from Image Sequence (still uses ImageMagick node) =========== Additional Talk =========== 40:58 Recap 41:22 ☠️Part 3 of the Tutorial - How It Doesn't Work 41:56 Filter by Expression TOP Node 44:42 Debugging Python Expressions 46:42 Using `print()` to Debug Python Expressions 48:57 ❌Potential Bug of Filter by Expression Node??? 51:38 Partition by Attribute TOP Node