C++ API Changes in Maya 2016

Inheritance

MPxDeformerNode now derives from MPxGeometryFilter.

New class methods

M3dView	M3dView::makeSharedContextCurrent()
MAnimCurveClipboardItemArray	New constructor that accepts an initial array size and default value. MAnimCurveClipboardItemArray::setLength()
MCommandResult	Can now return MInt64 results.
MDGMessage	MDGMessage::addNodeChangeUuidCheckCallback()
MDGModifier	MDGModifier::newPlugValueInt64() MDGModifier::pythonCommandToExecute()
MDataHandle	MDataHandle::asInt64() MDataHandle::asGenericInt64() MDataHandle::setInt64() MDataHandle::setGenericInt64()
MDrawRegistry	MDrawRegistry::registerComponentConverter() MDrawRegistry::deregisterComponentConverter()
MFloatPoint MPoint MFloatVector MVector	These classes now have constructors for each other.
MFnCamera	MFnCamera::isDisplayGateMask()
MFnComponent	MFnComponent::setWeight() MFnComponent::setWeights()
MFnDagNode	MFnDagNode::objectColorType() MFnDagNode::setObjectColorType() MFnDagNode::objectColorIndex() MFnDagNode::objectColorRGB() MFnDagNode::objectColorRGB()
MFnDependencyNode	MFnDependencyNode::setUuid() MFnDependencyNode::uuid()
MFnMesh	MFnMesh::getAxisAtPoint() MFnMesh::getPinUVs() MFnMesh::setPinUVs()
MFnNumericAttribute	MInt64 versions of MFnNumericAttribute::getDefault() and MFnNumericAttribute::setDefault()
MFnPlugin	MFnPlugin::registerRenderer() MFnPlugin::deregisterRenderer() MFnPlugin::registerAnimCurveInterpolator() MFnPlugin::deregisterAnimCurveInterpolator()
MFnSingleIndexedComponent	MFnSingleIndexedComponent::elementMax()
MFragmentManager	MFragmentManager::removeFragment()
MFrameContext	MFrameContext::getHwFogParameters()
MGlobal	MGlobal::getAbsolutePathToResources() MGlobal::setRichSelection() MGlobal::getPreselectionHiliteList() MGlobal::setPreselectionHiliteList()
MItMeshPolygon	MItMeshPolygon::getAxisAtUV()
MMeshSmoothOptions	MMeshSmoothOptions::setOpenSubdivVertexBoundary() MMeshSmoothOptions::openSubdivVertexBoundary() MMeshSmoothOptions::setOpenSubdivFaceVaryingBoundary() MMeshSmoothOptions::openSubdivFaceVaryingBoundary() MMeshSmoothOptions::setOpenSubdivSmoothTriangles() MMeshSmoothOptions::openSubdivSmoothTriangles() MMeshSmoothOptions::setOpenSubdivCreaseMethod() MMeshSmoothOptions::openSubdivCreaseMethod()
MNodeMessage	MNodeMessage::addUuidChangedCallback()
MPlug	MPlug::asInt64() MPlug::setInt64()
MPolyMessage	MPolyMessage::addUVSetChangedCallback()
MPxConstraintCommand	MPxConstraintCommand::setRestPosition()
MPxContext	MPxContext::drawFeedback()
MPxDrawOverride	MPxDrawOverride::refineSelectionPath() MPxDrawOverride::updateSelectionGranularity()
MPxGeometryOverride	MPxGeometryOverride::refineSelectionPath() MPxGeometryOverride::updateSelectionGranularity()
MPxManipContainer	MPxManipContainer::addPlugToInViewEditor()
MPxManipulatorNode	MPxManipulatorNode::shouldDrawHandleAsSelected()
MPxNode	MPxNode::postEvaluation() MPxNode::preEvaluation() MPxNode::schedulingType()
MPxShaderOverride	MPxShaderOverride::overridesNonMaterialItems() MPxShaderOverride::nonTexturedShaderInstance()
MPxSubSceneOverride	MPxSubSceneOverride::setAllowTransparentInstances() MPxSubSceneOverride::areUIDrawablesDirty() MPxSubSceneOverride::hasUIDrawables() MPxSubSceneOverride::addUIDrawables() MPxSubSceneOverride::updateSelectionGranularity()
MPxSurfaceShape	MPxSurfaceShape::getComponentSelectionMask()
MRenderer	MRenderer::GPUmaximumOutputTargetSize() MRenderer::setOutputTargetOverrideSize() MRenderer::getOutputTargetOverrideSize() MRenderer::unsetOutputTargetOverrideSize() MRenderer::NotificationCallback (new callback typedef) MRenderer::addNotification() MRenderer::removeNotification() MRenderer::notificationCount() MRenderer::presentOnScreen() MRenderer::setPresentOnScreen() MRenderer::useGradient() MRenderer::clearColor() MRenderer::clearColor2()
MRenderItem	MRenderItem::setSupportsAdvancedTransparency() MRenderItem::supportsAdvancedTransparency() MRenderItem::setShaderFromNode() MRenderItem::isShaderFromNode() MRenderItem::selectionMask() MRenderItem::setSelectionMask() MRenderItem::availableShaderParameters() MRenderItem::getShaderBoolParameter() MRenderItem::getShaderIntParameter() MRenderItem::getShaderFloatParameter() MRenderItem::getShaderFloatArrayParameter() MRenderItem::LinkLostCallback (new callback typedef)
MRenderTarget	MRenderTarget::freeRawData()
MRenderUtil	MRenderUtil::noiseTableSize() MRenderUtil::noiseTableCubeSide() MRenderUtil::valueInNoiseTable() MRenderUtil::noise1() MRenderUtil::noise2() MRenderUtil::noise3() MRenderUtil::noise4()
MRenderUtilities	MRenderUtilities::drawSimpleMesh() MRenderUtilities::renderMaterialViewerGeometry()
MRichSelection	MRichSelection::setSelection()
MSceneMessage	MSceneMessage::addNamespaceRenamedCallback()
MSelectionList	MSelectionList::add() that takes a MUuid
MShaderInstance	MShaderInstance::annotationAsInt() MShaderInstance::annotationAsFloat() MShaderInstance::annotationAsString() MShaderInstance::parameterSemantic() MShaderInstance::parameterDefaultValue() MShaderInstance::resourceName() MShaderInstance::uiWidget() MShaderInstance::uiName() MShaderInstance::techniqueAnnotationAsString()
MShaderManager	MShaderManager::getEffectsTechniques()
MShaderInstance	MShaderInstance::createShaderInstanceWithColorManagementFragment() MShaderInstance::techniqueAnnotationAsInt() MShaderInstance::techniqueAnnotationAsFloat() MShaderInstance::passAnnotationAsInt() MShaderInstance::passAnnotationAsFloat() MShaderInstance::passAnnotationAsString()
MSwatchRenderBase	MSwatchRenderBase::enableSwatchRender()
MTexture	MTexture::freeRawData()
MTextureManager	MTextureManager::acquireTexture() that accepts MTextureArguments
MTimeArray	MTimeArray::copy()
MUIDrawManager	MUIDrawManager::setFontIncline() MUIDrawManager::setFontWeight() MUIDrawManager::setFontStretch() MUIDrawManager::setFontLine() MUIDrawManager::lineList() MUIDrawManager::lineStrip() MUIDrawManager::points() MUIDrawManager::icon() MUIDrawManager::getIconNames() MUIDrawManager::beginDrawable() that accepts name and nameIsPickable params
MWeight	MWeight::setInfluence() MWeight::setSeam()

Removed class methods

MPxGlBuffer

MPxGlBuffer::open()

MPxGlBuffer::close()

MPxGlBuffer::drawable()

MPxGlBuffer::context()

MPxGlBuffer::display()

MPxGlBuffer::visual()

MPxGlBuffer::setUseExternalDrawable()

MPxGlBuffer::setDoubleBuffer()

MPxGlBuffer::setDisplay()

MPxGlBuffer::setDrawable()

MPxGlBuffer::setVisual()

Modified class methods

MFnMesh	MFnMesh::extrudeFaces() and MFnMesh::extrudeEdges() now accept thickness and offset arguments.
MFnNurbsSurface	MFnNurbsSurface::projectCurve() now accepts a direction argument.
MPxPolyTweakUVInteractiveCommand	MPxPolyTweakUVInteractiveCommand::setUVs() now accepts a uvSet argument
MRenderUtilities	MRenderUtilities::acquireSwatchDrawContext() and MRenderUtilities::acquireUVTextureDrawContext() both now take optional color and depth targets. MRenderUtilities::releaseDrawContext() takes an optional releaseTargets flag.
MPxSubSceneOverride	MPxSubSceneOverride::getSelectionPath() was previously flagged as not implemented.
MPxSurfaceShape	MPxSurfaceShape::getShapeSelectionMask() was previously flagged as not implemented.

New public class members, enumerations and enumeration values

M3dView::DisplayObjects	M3dView::kDisplayParticleInstancers
MFn	enum Type MFn::kDeltaMush MFn::kMatrixArrayData MFn::kPolyPinUV MFn::kAnimLayerClipSingle MFn::kAnimLayerClipRotation MFn::kCaddyManipBase MFn::kPolyModifierManipContainer MFn::kPluginSkinCluster MFn::kPluginGeometryFilter MFn::kPluginBlendShape
MFnAnimCurve::TangentType	MFnAnimCurve::kTangentShared1 MFnAnimCurve::kTangentShared2 MFnAnimCurve::kTangentShared3 MFnAnimCurve::kTangentShared4 MFnAnimCurve::kTangentShared5 MFnAnimCurve::kTangentShared6 MFnAnimCurve::kTangentShared7 MFnAnimCurve::kTangentShared8 MFnAnimCurve::kTangentCustomStart MFnAnimCurve::kTangentCustomEnd MFnAnimCurve::kTangentTypeCount
MFnData	enum Type MFnData::kMatrixArray
MFnNumericData	enum Type MFnNumericData::kInt64
MFrameContext::PostEffectType	MFrameContext::kViewColorTransformEnabled
MFrameContext::DisplayStyle	MFrameContext::kFlatShaded MFrameContext::kShadeActiveOnly
MFrameContext::LightingMode	MFrameContext::kNoLighting MFrameContext::kCustomLights
MFrameContext	MFrameContext::FogMode MFrameContext::HwFogParams
MGeometry	MGeometry::DataType MGeometry::Semantic MGeometry::Primitive MGeometry::DrawMode
MMeshSmoothOptions	MMeshSmoothOptions::OpenSubdivVertexBoundary MMeshSmoothOptions::OpenSubdivCreaseMethod
MPassContext	MPassContext::kBeginRenderSemantic MPassContext::kEndRenderSemantic MPassContext::kBeginSceneRenderSemantic MPassContext::kEndSceneRenderSemantic MPassContext::kSelectionPassSemantic
MPxNode	enum Type MPxNode::kSkinCluster MPxNode::kGeometryFilter MPxNode::kBlendShape
MPxNode	MPxNode::SchedulingType MPxNode::frozen
MRenderItem	MRenderItem::sSelectionDepthPriority
MRenderItem::RenderItemType	MRenderItem::OverrideNonMaterialItem
MRenderUtilities	MRenderUtilities::MaterialViewerCamera MRenderUtilities::MaterialViewerLights
MSceneRender::MObjectTypeExclusions	MSceneRender::kExcludeHoldOuts
MSceneRender::MDisplayMode	MSceneRender::kFlatShaded MSceneRender::kShadeActiveOnly MSceneRender::kTextured
MSceneRender::MLightingMode	MSceneRender::kNoLight
MShaderManager::MStockShader	MShaderManager::k3dOpacityLookupFatPointShader MShaderManager::k3dColorOpacityLookupFatPointShader MShaderManager::k3dFloat2NumericShader
MUIDrawManager	MUIDrawManager::FontSize MUIDrawManager::TextIncline MUIDrawManager::TextWeight MUIDrawManager::TextStretch
TextLine

Removed public class members and enum values

MFn

MFn::kAnimLayerClipBlender

MFn::kAnimLayerTestClipBlenderBase

MFn::kAnimLayerTestClipBlender

MFn::kAnimLayerTestClipBlenderRotation

MFn::kPolyCaddyManipContainer

MSceneRender

MSceneRender::MDisplayMode::kShadeNonTextured