LineSystem. Demo here (jerome)Buffer object and then use buffer.createVertexBuffer to specify the vertex buffers (benaadams)overridenInstanceCount set to specify the number of meshes to draw when custom instancing is used (benaadams)Earcut module). The PolygonMeshBuilder class now relies on Earcut. (nockawa)renderTargetTexture.useCameraPostProcesses to control postprocesses for render targets (deltakosh)mesh.toLefthanded() to convert a mesh from right handed system (kesshi)node._children to track children hierarchy (deltakosh)digest() (jerome)computeBoundingBox (jerome)isVisible (jerome)Engine.updateDynamicVertexBuffer now has optional count as well as offset to allow partial updates (benaadams)SolidParticleSystem documented (jerome)MeshBuilder documented (jerome)Mesh documented (jerome)DynamicTexture.clone() now preserves height in addition to width (dahlbyk)MeshBuilder.CreateGroundFromHeightMap() and MeshBuilder.CreateTiledGround() (jerome)SolidParticleSystem (jerome)VertexData.CreateLines() removed as MeshBuilder.CreateLines() now calls MeshBuilder.CreateLineSystem()scene.onNewXXXAdded and scene.onXXXRemoved callbacks were removed and replaced by scene.onNewXXXAddedObservable and scene.onXXXRemovedObservableMaterial.dispose does not dispose textures by default. You have to call material.dispose(false, true) to get the previous behavior.SSAORenderingPipeline.getBlurHPostProcess and SSAORenderingPipeline.getBlurVPostProcess. The SSAO rendering pipeline doesn't use standard blur post-process anymore. A bilateral blur post-process is used instead.Engine.bindBuffers is now Engine.bindBuffersDirectly (benaadams)Engine.bindMultiBuffers is now Engine.bindBuffers and strongly typed { [key: string]: VertexBuffer; } of buffers (benaadams)Engine.createDynamicVertexBuffer takes vertices rather than capacity, creating and initalizing in one gpu instruction (benaadams)Engine.bindBuffer is used rather than gl.bindBuffer which only binds when the bound buffer is changing (benaadams)DynamicTexture no longer forces height/width to exponents of 2 if MIP maps are disabled (dahlbyk)