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Utilities for the following tasks that require consideration of a USD asset's external dependencies: More...
Go to the source code of this file.
Typedefs | |
using | UsdUtilsModifyAssetPathFn = std::function< std::string(const std::string &assetPath)> |
Callback that is used to modify asset paths in a layer. | |
Functions | |
USDUTILS_API void | UsdUtilsExtractExternalReferences (const std::string &filePath, std::vector< std::string > *subLayers, std::vector< std::string > *references, std::vector< std::string > *payloads) |
Parses the file at filePath , identifying external references, and sorting them into separate type-based buckets. | |
USDUTILS_API bool | UsdUtilsComputeAllDependencies (const SdfAssetPath &assetPath, std::vector< SdfLayerRefPtr > *layers, std::vector< std::string > *assets, std::vector< std::string > *unresolvedPaths, const std::function< UsdUtilsProcessingFunc > &processingFunc=std::function< UsdUtilsProcessingFunc >()) |
Recursively computes all the dependencies of the given asset and populates layers with all the dependencies that can be opened as an SdfLayer. | |
USDUTILS_API void | UsdUtilsModifyAssetPaths (const SdfLayerHandle &layer, const UsdUtilsModifyAssetPathFn &modifyFn, bool keepEmptyPathsInArrays=false) |
Helper function that visits every asset path in layer , calls modifyFn and replaces the value with the return value of modifyFn . | |
Utilities for the following tasks that require consideration of a USD asset's external dependencies:
Definition in file dependencies.h.
using UsdUtilsModifyAssetPathFn = std::function<std::string( const std::string& assetPath)> |
Callback that is used to modify asset paths in a layer.
The assetPath
will contain the string value that's authored. The returned value is the new value that should be authored in the layer. If the function returns an empty string, that value will be removed from the layer.
Definition at line 80 of file dependencies.h.
USDUTILS_API bool UsdUtilsComputeAllDependencies | ( | const SdfAssetPath & | assetPath, |
std::vector< SdfLayerRefPtr > * | layers, | ||
std::vector< std::string > * | assets, | ||
std::vector< std::string > * | unresolvedPaths, | ||
const std::function< UsdUtilsProcessingFunc > & | processingFunc = std::function< UsdUtilsProcessingFunc >() |
||
) |
Recursively computes all the dependencies of the given asset and populates layers
with all the dependencies that can be opened as an SdfLayer.
All of the resolved non-layer dependencies are populated in assets
. Any unresolved (layer and non-layer) asset paths are populated in unresolvedPaths
.
If a function is provided for the processingFunc
parameter, it will be invoked on every asset path that is discovered during localization.
Refer to UsdUtilsDependencyInfo for general information on User processing functions. Any changes made to the paths during the invocation of this function will not be written to processed layers.
The input vectors to be populated with the results are cleared before any results are added to them.
Returns true if the given asset was resolved correctly.
USDUTILS_API void UsdUtilsExtractExternalReferences | ( | const std::string & | filePath, |
std::vector< std::string > * | subLayers, | ||
std::vector< std::string > * | references, | ||
std::vector< std::string > * | payloads | ||
) |
Parses the file at filePath
, identifying external references, and sorting them into separate type-based buckets.
Sublayers are returned in the sublayers
vector, references, whether prim references, value clip references or values from asset path attributes, are returned in the references
vector. Payload paths are returned in payloads
.
USDUTILS_API void UsdUtilsModifyAssetPaths | ( | const SdfLayerHandle & | layer, |
const UsdUtilsModifyAssetPathFn & | modifyFn, | ||
bool | keepEmptyPathsInArrays = false |
||
) |
Helper function that visits every asset path in layer
, calls modifyFn
and replaces the value with the return value of modifyFn
.
This modifies layer
in place. If the keepEmptyPathsInArrays
parameter is true, empty asset paths will be written in into arrays even if modifyFn
returns an empty string. This functionality is useful in cases where arrays are expected to have a specific length or such values may be meaningful.
This can be useful in preparing a layer for consumption in contexts that do not have access to the ArResolver for which the layer's asset paths were authored: we can replace all paths with their fully resolved equivalents, for example.