SketchUp API 13.1, SketchUp 2025.0.2

Added APIs for physically based material properties.
- SUMaterialSetNormalEnabled()
- SUMaterialSetAOEnabled()

SketchUp API 13.0, SketchUp 2025.0

Added APIs to perform overlay drawing on SketchUp's view.
Added rendering options support for Ambient Occlusion. The added keys are:
- AmbientOcclusion
- AmbientOcclusionDistance
- AmbientOcclusionIntensity

Added SUTextureGetFilePath()
Changed SUInstancePathSetLeaf() to accept SU_INVALID as an entity parameter to remove the leaf
Fixed SUEntitiesSetActiveSectionPlane() not accepting SU_INVALID as a section plane parameter.

Fixed possible crash when (1) an edge reference is created with SUGeometryInputAddEdge() by connecting two vertices so close that they are considered coincident; (2) that edge reference is added as the first edge of a curve with SUGeometryInputAddCurve(); and (3) geometry is subsquently created with SUEntitiesFill() with weld_vertices set to true. A crash would occur in an API call traversing that curve, such as SUCurveGetEdges()
Fixed SUEntitiesErase() that might leave the model in an invalid unfixable state.

Fixed a possible crash in SUTextureWriterWriteTexture() when the texture is corrupted.
Fixed several security issues.

Made fixes in the core texture mapping code to better catch certain invalid cases (such as UVs specified on colinear points, texture projection vector being perpendicular to a face normal vector). SUFacePositionMaterial() may now return SU_ERROR_INVALID_ARGUMENT in such cases where it would erroneously succeed before. SUEntitiesFill() will also detect these invalid cases, but it will apply a default texture mapping rather than returning an error.

Fixed SUComponentDefinitionSetName() such that it will automatically generate a unique name if the given name already exist in the model the definition belongs to.

Added SUFaceClearTexturePosition()
Added SUClassificationsGetNumSchemas()
Added SUClassificationsGetSchemas()
Added SUSceneGetDescription()
Added SUSceneSetDescription()
Added SUSchemaGetSchemaName()
Deprecated SUComponentInstanceSaveAs()
Added SUComponentDefinitionSaveToFile()
Added SUModelVersion_Current() to enum SUModelVersion
Moved SUModelVersion() to new model_version.h header file
Remove obsolete NamedOptions options provider that never worked correctly
Added missing rendering options DisplaySectionCuts, DrawBackEdges, SectionCutDrawEdges, DrawHiddenGeometry and DrawHiddenObjects to the SURenderingOptionsRef documentation.
Removed rendering option FaceColorMode from SURenderingOptionsRef documentation. This option was removed from the SDK in SketchUp 2019.1.

Added SUModelGetSelection()
Added SUModelGetActiveEntities()
Added SUModelGetActivePath()
Added SUSelectionRef
Added SUSelectionAdd()
Added SUSelectionRemove()
Added SUSelectionToggle()
Added SUSelectionClear()
Added SUSelectionInvert()
Added SUSelectionGetNumElements()
Added SUSelectionGetEntityList()
Added SUSelectionIsType()
Added SUModelPurgeUnusedLayers()
Added SUModelGetEntitiesOfTypeByPersistentIDs()
Deprecated SUModelGetLayersByPersistentIDs()
Deprecated SUModelGetEntitiesByPersistentIDs()
Added function to exchange between C API and Ruby API references:
- SUEntityToRuby()
- SUEntityFromRuby()
- SUImageRepToRuby()
- SUImageRepFromRuby()
Changed the behavior of SULineStyleSetLengthMultiplier() to accept negative multiplier values. The previous behavior was to reject all values less than or equal to zero. Negative values will now trigger "auto" stipple scaling which is described in the documentation. Zero is still an invalid input.
Changed the behavior of SULineStyleSetWidthPixels() to accept line widths less than one. The previous behavior was to reject widths less than one as invalid input. Input widths less than or equal to zero are still invalid.
Clarified dictionary ownership rules for SUEntityAddAttributeDictionary().

Added C++ sample projects ReadingFromAskpFile, WritingToAskpFile and TextureMapping.

Improved the performance of SUEntitiesAddGroup() when adding a large number of groups.
Added 64-bit SketchUpReader to the deprecated folder.

Fixed compilation issues on Mac while building against the deprecated SketchupReader.framework. Updated the framework to be able to read 2013 files. Also added some files missing from deprecated/SkpWriter/Headers. (Sorry about these omissions).
Added back the old Mac example SkpStats (under deprecated\SkpReader\Examples) that illustrates how to read SU files from a stand-alone program (i.e. not as an exporter).
Added missing SU_ERROR_INVALID_OUTPUT return values to code documentation comments for slapi *GetName() functions and others that return string data.

Fixed install paths of XmlExporter and XmlImporter plugin samples to link to slapi.framework as SketchUp does to prevent loader problems.
Updated deprecated SketchUpReader.dll to be able to read SU2013 format files.