Version 1.36.3

Merged shader code generation and physically-based shading nodes from Autodesk's ShaderX extensions. Added a default MaterialX viewer based on GLSL shader generation.

Added

• Added the MaterialXGenShader library, supporting shader code generation in GLSL and OSL.
• Added the MaterialXRender library, providing helper functionality for rendering MaterialX content.
• Added the MaterialXView library, providing a default MaterialX viewer.
• Added the physically-based shading node library (libraries/pbrlib).
• Added a root-level 'cmake' folder, including a standard FindMaterialX module.
• Added a root-level 'resources' folder, including example materials and meshes.
• Added documents for the 1.37 specification.

Changed

• Moved the MaterialX data libraries from 'documents/Libraries' to 'libraries'.
• Updated MaterialX node definitions to the 1.37 specification.
• Updated the PyBind11 library to version 2.2.4.

Removed

• Removed customizations of PyBind11 to support Python 2.6. Only Python versions 2.7 and 3.x are now supported.

Version 1.36.2

Added

• Added support for 'nodedef' attributes on MaterialX::Node, integrating this usage into GraphElement::addNodeInstance.
• Added the MaterialX::GeomPropDef class for geometric input declarations.
• Added the Document::getGeomAttrValue method.
• Added the ValueElement::getResolvedValue method.
• Added support for the MATERIALX_SEARCH_PATH environment variable.
• Added support for GCC 8 and Clang 7.

Changed

• Added callbacks Observer::onCopyContent and Observer::onClearContent, and removed callback Observer::onInitialize.
• Moved the standard document library to the 'documents/Libraries/stdlib' folder.

Version 1.36.1

Added

• Added support for interface tokens, including the MaterialX::BindToken class and ‘[TOKEN]’ syntax in filenames.
• Added support for Clang 6.

Changed

• Updated geometry token syntax from ‘%TOKEN’ to ‘<TOKEN>’.
• Replaced readXIncludes boolean with a readXIncludeFunction callback in the XmlReadOptions structure.
• Combined individual options into an XmlWriteOptions argument for the XML write functions.
• Extended functionality of the vector and matrix classes.
• Updated PyBind11 library to version 2.2.3.
• Updated PugiXML library to version 1.9.

Fixed

• Fixed graph implementations of range, extract, tiledimage, and ramp4 nodes.

Version 1.36.0

Updated the MaterialX library to the v1.36 specification.

Added

• Added support for Element namespaces.
• Added support for NodeDef inheritance.
• Added support for root-level node elements.
• Added support for inheritance attributes on MaterialX::Material and MaterialX::Look.
• Added support for include and exclude attributes on MaterialX::Collection.
• Added the MaterialX::Token class for string substitutions.
• Added the MaterialX::Variant, MaterialX::VariantSet, and MaterialX::VariantAssign classes.
• Added the MaterialX::GeomPath class for geometry name comparisons.
• Added the Collection::matchesGeomString method, for testing matches between collections and geometries.
• Added the Material::getGeometryBindings method, for finding the bindings of a material to specific geometries.

Removed

• Removed the MaterialX::MaterialInherit and MaterialX::LookInherit classes.
• Removed the MaterialX::CollectionAdd and MaterialX::CollectionRemove classes.
• Removed the MaterialX::Override class and support for public names.
• Removed the 'channels' attribute from MaterialX::InterfaceElement.
• Removed the Material::getReferencingMaterialAssigns method (deprecated in Python).

Version 1.35.5

Added

• Added material inheritance support to graph traversal and the high-level Material API.
• Added Material methods getActiveShaderRefs and getActiveOverrides.
• Added PropertySet methods setPropertyValue and getPropertyValue.
• Added Element methods setInheritsFrom, getInheritsFrom, traverseInheritance, hasInheritanceCycle, and getDescendant.
• Added function templates MaterialX::fromValueString and MaterialX::toValueString.
• Added math functionality to the vector and matrix classes.
• Added support for Visual Studio 2017, GCC 7, and Clang 5.

Changed

• Renamed Matrix3x3 to Matrix33 and Matrix4x4 to Matrix44.
• Renamed VectorN::length to VectorN::numElements.
• Updated Python bindings to PyBind11 2.2.1.

Version 1.35.4

Added

• Added high-level Material API, including getPrimaryShaderParameters, getPrimaryShaderInputs, getBoundGeomStrings, and getBoundGeomCollections.
• Added methods ValueElement::getBoundValue and ValueElement::getDefaultValue.
• Added support for multi-output nodes.
• Added support for TypeDef members.
• Added StringResolver class, for applying substring modifiers to data values.
• Added example interfaces for the Disney BRDF, Disney BSDF, and alSurface shaders.

Changed

• Renamed method Material::getReferencedShaderDefs to Material::getShaderNodeDefs.
• Renamed method ShaderRef::getReferencedShaderDef to ShaderRef::getNodeDef.
• Renamed method Node::getReferencedNodeDef to Node::getNodeDef.
• Added a 'string' suffix to all accessors for 'node', 'nodedef', and 'collection' strings.
• Combined individual booleans into an XmlReadOptions argument for the XML read functions.

Removed

• Removed method Document::applyStringSubstitutions (deprecated in Python).
• Removed method InterfaceElement::getParameterValueString (deprecated in Python).

Version 1.35.3

Added

• Added support for Python 3.
• Added support for standard TypeDef attributes.
• Added support for values of type 'stringarray'.
• Added method Element::setName.
• Extended Python bindings for Document, NodeGraph, MaterialAssign, and Collection.

Changed

• Modified NodeGraph::topologicalSort to return elements in a more intuitive top-down order, with upstream elements preceding downstream elements.
• Removed special cases for string return values in MaterialX Python, with all strings now returned as 'unicode' in Python 2 and 'str' in Python 3.
• Updated OSL reference implementations.

Fixed

• Fixed handling of empty names in Element::addChildOfCategory.
• Fixed an edge case in Document::upgradeVersion.

Version 1.35.2

Added

• Added OSL source files for the standard nodes.
• Added example document 'PostShaderComposite.mtlx'.
• Added method MaterialX::prependXInclude.

Changed

• Argument 'writeXIncludes' defaults to true in MaterialX::writeToXmlStream and MaterialX::writeToXmlString.

Fixed

• Fixed handling of BindInput elements with missing connections.