This What's New covers changes made in 2019, 2019.1, and 2019.2.

New in 2019.2

The MPxTransform_BoundingBox class added as a temporary fix for the issue where MPxTransform::boundingBox() is not called from a command when MPxTransform::treatAsTransform() returns false. However, this issue was fixed in Maya 2020, and this temporary class was removed from the API.

Important: If you are using MPxTransform_BoundingBox-derived classes, you will need to change back to MPxTransform-derived classes in Maya 2020.

A change was made so that MPxImagePlane no longer needed to be associated with MPxImagePlaneOverride when drawing a custom image plane in VP2.0. Consequently, the customImagePlane example was updated to use MPxImagePlane instead of MPxImagePlaneOverride.

Important: If you have any code that uses MPxImagePlaneOverride, you should update it to use only MPxImagePlane.

New in 2019.1

Only the example plug-ins were modified between 2019 and 2019.1

The following example plug-ins were removed from the devkit:

• geometryOverrideHighPerformance
• AnimEngine A similar example is available from https://github.com/Autodesk/animx

The following example plug-ins were updated:

• geometryOverrideExample1
• geometryOverrideExample2
• footPrintNode_GeometryOverride_AnimatedMaterial

New in 2019

Building with CMake was introduced in 2019.

The embedded version of Python on MacOSX was updated to Python 2.7.15.

As of 2019, Maya sets the SSL_CERT_FILE environment variable to point to the cert.pem file within its embedded Python Framework if SSL_CERT_FILE is unset. To keep SSL_CERT_FILE unset, the MAYA_DO_NOT_SET_SSL_CERT_FILE environment variable must be set to 1 before launching Maya.

The following new classes were added to Maya 2019:

• MColorManagementNodes
• MCameraMessage
• MPxCacheConfigRuleFilter
• MColorPickerUtilities

The following new types were added to Maya 2019:

• MFn::kPinToGeometryUV
• MFn::kPinToGeometryProx
• MPolyMessage::kColorSetAdded
• MPolyMessage::kColorSetDeleted
• MPolyMessage::kCurrentColorSetChanged
• MPyMSceneMessage::kAfterCreateReference

The following new methods were added to Maya 2019:

• MPxGeometryOverride::requiresGeometryUpdate()
• MPxGeometryOverride::requiresUpdateRenderItems()
• MPxGeometryOverride::supportsEvaluationManagerParallelUpdate()
• MPxGeometryOverride::supportsVP2CustomCaching()
• MRenderItem::shadingComponent()
• MRenderItem::setAllowIsolateSelectCopy()
• MRenderItem::allowIsolateSelectCopy()
• MRenderItem::isIsolateSelectCopy()
• MFnDependencyNode::setAllowedToAnimate()
• MFnDependencyNode::allowedToAnimate()
• MGraphEditorInfo::isStackedViewportMode()
• MGraphEditorInfo::isNormalizedViewportMode()
• MProfiler::getCategoryInfo()
• MUIDrawManager::cylinder()
• MUIDrawManager::capsule()
• MUIDrawManager::sphere()
• MUIDrawManager::circle()
• MUIDrawManager::circle2d()
• MUIDrawManager::arc()
• MUIDrawManager::arc2d()
• MUIDrawManager::cone()
• MPolyMessage::addColorSetChangedCallback()
• MGlobal::executeTaskOnIdle() (C++ only)
• MMessage::stopRegisteringCallableScript()

The following methods were modified in Maya 2019:

• MProfiler::addCategory()
• MProfiler::getAllCategories()
• MFnMesh::create()
• MnCloth::setAddCrossLinks()

The following methods were deprecated in Maya 2019:

• MHardwareRenderer::theRenderer()
• MHardwareRenderer::backEndString()
• MHardwareRenderer::makeResourceContextCurrent()
• MHardwareRenderer::addDrawProcedure()
• MHardwareRenderer::removeDrawProcedure()
• MHardwareRenderer::insertDrawProcedure()
• MHardwareRenderer::getDrawProcedureCount()
• MHardwareRenderer::getDrawProcedureListNames()
• MHardwareRenderer::findDrawProcedure()
• MHardwareRenderer::restoreCurrent()
• MHardwareRenderer::getBufferSize()
• MHardwareRenderer::getColorBufferPixelFormat()
• MHardwareRenderer::getDepthBufferPixelFormat()
• MHardwareRenderer::dereferenceGeometry()
• MHardwareRenderer::glFunctionTable()
• M3dView::beginGL()
• M3dView::endGL()
• M3dView::setDrawColor(unsigned int, ColorTable)
• M3dView::setDrawColor(const MColor& )
• M3dView::setDrawColorAndAlpha()
• M3dView::colorMask()
• M3dView::setColorMask()
• M3dView::drawText()
• M3dView::readColorBuffer()
• M3dView::writeColorBuffer()
• M3dView::readDepthMap()
• M3dView::readBufferTo2dTexture()
• M3dView::setMultipleDrawEnable()
• M3dView::multipleDrawPassCount()
• M3dView::setMultipleDrawPassCount()
• M3dView::beginProjMatrixOverride()
• M3dView::endProjMatrixOverride()

The following examples were updated in Maya 2019:

• apiMeshShape
• captureViewRenderCmd
• footPrintNode_GeometryOverride
• uiDrawManager

The following examples were added to Maya 2019:

• geometryOverrideExample1
• geometryOverrideExample2
• tessellatedQuad
• NameFilter
• cameraMessageCmd