Blender Kitsu: Refactor Shot Builder #183
@ -7,28 +7,45 @@ blender-kitsu is a Blender Add-on to interact with Kitsu from within Blender. It
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- [Table of Contents](#table-of-contents)
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- [Installation](#installation)
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- [How to get started](#how-to-get-started)
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- [**Setup Login Data**](#setup-login-data)
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- [**Setup Project Settings**](#setup-project-settings)
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- [**Setup Animation Tools**](#setup-animation-tools)
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- [**Setup Lookdev Tools**](#setup-lookdev-tools)
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- [**Setup Media Search Paths**](#setup-media-search-paths)
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- [**Setup Miscellaneous**](#setup-miscellaneous)
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- [Features](#features)
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- [Sequence Editor](#sequence-editor)
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- [Metadata](#metadata)
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- [Push](#push)
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- [Pull](#pull)
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- [Multi Edit](#multi-edit)
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- [Shot as Image Sequence](#shot-as-image-sequence)
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- [General Sequence Editor Tools](#general-sequence-editor-tools)
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- [Context](#context)
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- [Animation Tools](#animation-tools)
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- [Lookdev Tools](#lookdev-tools)
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- [Error System](#error-system)
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- [Sequence Editor](#sequence-editor)
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- [Metastrips](#metastrips)
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- [Create a Metastrip](#create-a-metastrip)
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- [Initialize a Shot](#initialize-a-shot)
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- [Metadata](#metadata)
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- [Push](#push)
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- [Pull](#pull)
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- [Multi Edit](#multi-edit)
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- [Shot as Image Sequence](#shot-as-image-sequence)
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- [Advanced Settings](#advanced-settings)
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- [General Sequence Editor Tools](#general-sequence-editor-tools)
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- [Context](#context)
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- [Animation Tools](#animation-tools)
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- [Lookdev Tools](#lookdev-tools)
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- [Error System](#error-system)
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- [Shot Builder](#shot-builder)
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- [Features](#features)
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- [Getting Started](#getting-started)
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- [Shot Setup](#shot-setup)
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- [Asset Setup](#asset-setup)
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- [Kitsu Server](#kitsu-server)
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- [Asset Index](#asset-index)
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- [Example asset_index.json](#example-asset_indexjson)
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- [Hooks Setup](#hooks-setup)
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- [Editorial Exports](#editorial-exports)
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- [Run Shot Builder](#run-shot-builder)
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- [Development](#development)
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- [Update Dependencies](#update-dependencies)
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- [Troubleshoot](#troubleshoot)
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- [Credits](#credits)
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<!-- /TOC -->
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blender-kitsu is a Blender Add-on to interact with Kitsu from within Blender. It also has features that are not directly related to Kitsu but support certain aspects of the Blender Studio Pipeline.
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[Blender-Kitsu blogpost](https://studio.blender.org/blog/kitsu-addon-for-blender/)
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## Table of Contents
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@ -274,250 +291,83 @@ blender-kitsu has different checks that are performed during file load or during
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## Shot Builder
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Shot Builder is an Add-on that helps studios to work with task specific
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Blend-files. The shot builder is part of the shot-tools repository. The main functionalities are
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Shot Builder is a Feature of the Blender Kitsu Add-on To automatically build shot files, using the data from Kitsu server and the file structures defined on the [Blender Studio](https://studio.blender.org/pipeline/naming-conventions/svn-folder-structure) website.
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* Build blend files for a specific task and shot.
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* Sync data back from work files to places like kitsu, or `edit.blend`.
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### Features
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- Saves a 'Shot' File for each of the Shot's Task Types on Kitsu Server.
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- Automatically Names Scenes based on Shot and Task Type names
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- Creates output collections for certain Task Types (anim, fx, layout, lighting, previz, storyboard)
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- Links output collections between Task Types based on [Shot Assembly](https://studio.blender.org/pipeline/pipeline-overview/shot-production/shot-assembly) specifications
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- Loads Editorial Export (defined in preferences) into Shot file's VSE area (if available)
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- Loads Assets via `asset_index.json` file stored at `your_production/svn/pro/assets/asset_index.json`
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- Executes a `hook.py` file stored at `your_production/svn/pro/assets/shot-builder/hooks.py`
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### Design Principles
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### Getting Started
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#### Shot Setup
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The Shot Builder requires shot data including Name, Frame Rate, and Duration to be stored on a Kitsu Server. Please follow the [Sequence Editor](#sequence-editor) guide to create metastrips and Push that data to the Kitsu server or follow the [Kitsu First Production](https://kitsu.cg-wire.com/first_production/) to manually enter this data into the Kitsu Server.
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The main design principles are:
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#### Asset Setup
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##### Kitsu Server
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The Shot Builder requires all Asset to be stored on the Kitsu Server with a [Metadata Column](https://kitsu.cg-wire.com/production_advanced/#create-custom-metadata-columns) with the exact name `slug` exactly matching the name of the asset's collection.
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* The core-tool can be installed as an add-on, but the (production specific)
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configuration should be part of the production repository.
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* The configuration files are a collection of python files. The API between
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the configuration files and the add-on should be easy to use as pipeline
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TDs working on the production should be able to work with it.
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* TDs/artists should be able to handle issues during building without looking
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at how the add-on is structured.
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* The tool contains connectors that can be configured to read/write data
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from the system/file that is the main location of the data. For example
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The start and end time of a shot could be stored in an external production tracking application.
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Assets needs to be associated with each shot in your production. Please follow the [Kitsu Breakdown](https://kitsu.cg-wire.com/getting-started-production/) guide to Cast your assets to shots.
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### Connectors
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##### Asset Index
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To match Assets File to the casting breakdown on the Kitsu server, we need to create an Asset Index. This is a json file that contains the mapping of the asset's name to the asset's filepath. Any collection Marked as an Asset in Blender in the directory `your_project/svn/pro/assets` will be added to this index.
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Connectors are components that can be used to read or write to files or
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systems. The connectors will add flexibility to the add-on so it could be used
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in multiple productions or studios.
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In the configuration files the TD can setup the connectors that are used for
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the production. Possible connectors would be:
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* Connector for text based config files (json/yaml).
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* Connector for kitsu (https://www.cg-wire.com/en/kitsu.html).
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* Connector for blend files.
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### Layering & Hooks
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The configuration of the tool is layered. When building a work file for a sequence
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there are multiple ways to change the configuration.
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* Configuration for the production.
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* Configuration for the asset that is needed.
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* Configuration for the asset type of the loaded asset.
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* Configuration for the sequence.
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* Configuration for the shot.
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* Configuration for the task type.
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For any combination of these configurations hooks can be defined.
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```
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@shot_tools.hook(match_asset_name='Spring', match_shot_code='02_020A')
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def hook_Spring_02_020A(asset: shot_tools.Asset, shot: shot_tools.Shot, **kwargs) -> None:
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"""
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Specific overrides when Spring is loaded in 02_020A.
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"""
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@shot_tools.hook(match_task_type='anim')
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def hook_task_anim(task: shot_tools.Task, shot: shot_tools.Shot, **kwargs) -> None:
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"""
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Specific overrides for any animation task.
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"""
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```
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#### Data
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All hooks must have Python’s `**kwargs` parameter. The `kwargs` contains
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the context at the moment the hook is invoked. The context can contain the
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following items.
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* `production`: `shot_tools.Production`: Include the name of the production
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and the location on the filesystem.
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* `task`: `shot_tools.Task`: The task (combination of task_type and shot)
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* `task_type`: `shot_tools.TaskType`: Is part of the `task`.
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* `sequence`: `shot_tools.Sequence`: Is part of `shot`.
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* `shot`: `shot_tools.Shot` Is part of `task`.
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* `asset`: `shot_tools.Asset`: Only available during asset loading phase.
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* `asset_type`: `shot_tools.AssetType`: Only available during asset loading phase.
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#### Execution Order
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The add-on will internally create a list containing the hooks that needs to be
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executed for the command in a sensible order. It will then execute them in that
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order.
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By default the next order will be used:
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* Production wide hooks
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* Asset Type hooks
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* Asset hooks
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* Sequence hooks
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* Shot hooks
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* Task type hooks
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A hook with a single ‘match’ rule will be run in the corresponding phase. A hook with
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multiple ‘match’ rules will be run in the last matching phase. For example, a hook with
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‘asset’ and ‘task type’ match rules will be run in the ‘task type’ phase.
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###### Events
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Order of execution can be customized by adding the optional `run_before`
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or `run_after` parameters.
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```
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@shot_tools.hook(match_task_type='anim',
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requires={shot_tools.events.AssetsLoaded, hook_task_other_anim},
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is_required_by={shot_tools.events.ShotOverrides})
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def hook_task_anim(task: shot_tools.Task, shot: shot_tools.Shot, **kwargs) -> None:
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"""
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Specific overrides for any animation task run after all assets have been loaded.
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"""
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```
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Events could be:
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* `shot_tools.events.BuildStart`
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* `shot_tools.events.ProductionSettingsLoaded`
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* `shot_tools.events.AssetsLoaded`
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* `shot_tools.events.AssetTypeOverrides`
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* `shot_tools.events.SequenceOverrides`
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* `shot_tools.events.ShotOverrides`
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* `shot_tools.events.TaskTypeOverrides`
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* `shot_tools.events.BuildFinished`
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* `shot_tools.events.HookStart`
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* `shot_tools.events.HookEnd`
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During usage we should see which one of these or other events are needed.
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`shot_tools.events.BuildStart`, `shot_tools.events.ProductionSettingsLoaded`
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and `shot_tools.events.HookStart` can only be used in the `run_after`
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parameter. `shot_tools.events.BuildFinished`, `shot_tools.events.HookFinished`
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can only be used in the `run_before` parameter.
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### API
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The shot builder has an API between the add-on and the configuration files. This
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API contains convenience functions and classes to hide complexity and makes
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sure that the configuration files are easy to maintain.
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```
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register_task_type(task_type="anim")
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register_task_type(task_type="lighting")
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```
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```
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# shot_tool/characters.py
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class Asset(shot_tool.some_module.Asset):
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asset_file = "/{asset_type}/{name}/{name}.blend"
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collection = “{class_name}”
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name = “{class_name}”
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class Character(Asset):
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asset_type = ‘char’
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class Ellie(Character):
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collection = “{class_name}-{variant_name}”
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variants = {‘default’, ‘short_hair’}
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class Victoria(Character): pass
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class Rex(Character): pass
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# shot_tool/shots.py
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class Shot_01_020_A(shot_tool.some_module.Shot):
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shot_id = ‘01_020_A’
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assets = {
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characters.Ellie(variant=”short_hair”),
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characters.Rex,
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sets.LogOverChasm,
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##### Example `asset_index.json`
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```json
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{
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"CH-rain": {
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"type": "Collection",
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"filepath": "your_project/svn/pro/assets/chars/rain/rain.blend"
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},
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"CH-snow": {
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"type": "Collection",
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"filepath": "your_project/svn/pro/assets/chars/snow/snow.blend"
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}
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class AllHumansShot(shot_tool.some_module.Shot):
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assets = {
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characters.Ellie(variant=”short_hair”),
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characters.Rex,
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characters.Victoria,
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}
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class Shot_01_035_A(AllHumansShot):
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assets = {
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sets.Camp,
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}
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}
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```
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This API is structured/implemented in a way that it keeps track of what
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is being done. This will be used when an error occurs so a descriptive
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error message can be generated that would help the TD to solve the issue more
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quickly. The goal would be that the error messages are descriptive enough to
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direct the TD into the direction where the actual cause is. And when possible
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propose several solutions to fix it.
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To create/update the Asset Index:
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1. Enter Asset Index directory `cd blender-studio-pipeline/scripts/index_assets`
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2. Run using `./run_index_assets.py your_poduction` replace `your_production` with the path to your project's root directory
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3. This will create an index file at `your_production/svn/pro/assets/asset_index.py`
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### Setting up the tool
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#### Hooks Setup
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Shot Builder uses hooks to extend the functionality of the shot builder. To create a hook file
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1. Open `Edit>Preferences>Add-Ons`
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2. Search for the `Blender Kitsu` Add-On
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3. In the `Blender Kitsu` Add-On preferences find the `Shot Builder` section
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4. Run the Operator `Save Shot Builder Hook File`
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5. Edit the file `your_project/svn/pro/assets/scripts/shot-builder/hooks.py` to customize your hooks.
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The artist/TD can configure their current local project directory in the add-on preferences.
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This can then be used for new blend files. The project associated with an opened (so existing)
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blend file can be found automatically by iterating over parent directories until a Shot Builder
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configuration file is found. Project-specific settings are not configured/stored in the add-on,
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but in this configuration file.
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The add-on will look in the root of the production repository to locate the
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main configuration file `/project_root_directory/pro/shot-builder/config.py`. This file contains general
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settings about the production, including:
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* The name of the production for reporting back to the user when needed.
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* Naming standards to test against when reporting deviations.
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* Location of other configuration (`tasks.py`, `assets.py`) relative to the `shot-builder` directory of the production.
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* Configuration of the needed connectors.
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#### Directory Layout
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``` bash
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└── project-name/ # Project Root Directory
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└── pro/
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├── assets/
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├── shot-builder/
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│ ├── assets.py
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│ ├── config.py
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│ ├── hooks.py
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│ └── shots.py
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└── shots/
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```
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Arguments to use in hooks
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scene: bpy.types.Scene # current scene
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shot: Shot class from blender_kitsu.types.py
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prod_path: str # path to production root dir (your_project/svn/)
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shot_path: str # path to shot file (your_project/svn/pro/shots/{sequence_name}/{shot_name}/{shot_task_name}.blend)
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Notes
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matching_task_type = ['anim', 'lighting', 'fx', 'comp'] # either use list or just one string
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output_col_name = shot.get_output_collection_name(task_type_short_name="anim")
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### Usage
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```
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#### Editorial Exports
|
||||
Shot Builder can load Exports from Editorial to the .blend's VSE for reference.
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|
||||
Any artist can open a shot file via the `File` menu. A modal panel appears
|
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where the user can select the task type and sequence/shot. When the file
|
||||
already exists, it will be opened. When the file doesn't exist, the file
|
||||
will be built.
|
||||
1. Open `Edit>Preferences>Add-Ons`
|
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2. Search for the `Blender Kitsu` Add-On
|
||||
3. In the `Blender Kitsu` Add-On preferences find the `Shot Builder` section
|
||||
4. Set your `Editorial Export Directory` to `your_project/shared/editorial/export/`
|
||||
5. Set your `Editorial File Pattern` to `your_project_v\d\d\d.mp4` where `\d` represents a digit. This pattern matches a file named `your_movie_v001.mp4`.
|
||||
|
||||
In the future other use cases will also be accessible, such as:
|
||||
|
||||
* Syncing data back from a work file to the source of the data.
|
||||
* Report of errors/differences between the shot file and the configuration.
|
||||
|
||||
### Open Issues
|
||||
|
||||
#### Security
|
||||
|
||||
* Security keys needed by connectors need to be stored somewhere. The easy
|
||||
place is to place inside the production repository, but that isn't secure
|
||||
Anyone with access to the repository could misuse the keys to access the
|
||||
connector. Other solution might be to use the OS key store or retrieve the
|
||||
keys from an online service authenticated by the blender cloud add-on.
|
||||
|
||||
We could use `keyring` to access OS key stores.
|
||||
#### Run Shot Builder
|
||||
1. Open Blender
|
||||
2. Select File>New
|
||||
3. From dialogue box, select the desired Sequence/Shot/Task Type
|
||||
4. Hit `ok` to run the tool. The tool will create a new file in the directory `your_project/svn/pro/shots/{sequence_name}/{shot_name}/{shot_name}+{task_type_name}.blend`
|
||||
|
||||
## Development
|
||||
### Update Dependencies
|
||||
|
||||
Loading…
Reference in New Issue
Block a user