v3.0.0

Highlights

• New website
• Comprehensive documentation
• All Core Layers updated (API, features, performance)
• 64-bit Layers (High Precision)
• METERS projection mode (High Precision)
• Multi-Primitive Layer Support
• Composite Layer Support

React Integration

• DeckGL (DeckGLOverlay in v2) component now requires a separate
  import (import DeckGL from 'deck.gl/react'). This allows the core
  deck.gl library to be imported by non-React applications without
  pulling in React.
• Adds onLayerClick and onLayerHover props to the DeckGL React
  component.
• The DeckGL component now cancels animation loop on unmount,
  important when repeatedly creating/destroying deck.gl components.
• The DeckGL component no longer manages WebGL blending modes,
  as this is better done directly by layers.

Layers

• All layers now support accessors, removing the need for applications to
  transform data before passing it to deck.gl.
• Layer props and accessors now always expect arrays (e.g. colors
  are expected as [r,g,b,a] instead of {r,g,b,a} etc).
• line widths now takes device pixel ratio into account for more consistent
  look between displays
• METERS projection mode allows specifying positions in meter offsets in
  addition to longitude/latitude.
• Layers now receive viewport information from the DeckGL component.
  This implies that apps no longer need to pass the width, height,
  longitude, latitude, zoom, pitch, bearing and bearing
  props to each layer.
  These properties only need to be passed to the DeckGL react component.

Base Layer

• deepCompare prop replaced with more flexible dataComparator

ArcLayer

• Specify separate start and end color for each arc.
• Renders smoother arcs, especially for bottom arc segments close to map
• Fixes flickering last segments

ScatterplotLayer.

• Adds drawOutline option.

ScreenGridLayer

• New name for deck.gl v2 GridLayer
• Now have accessors (getPosition, getWeight)
• Custom color ramps (minColor, maxColor)

ChoroplethLayer

• Now renders MultiPolygons and Polygons with holes

HexagonLayer (removed)

• The v2 HexagonLayer has not yet been ported to v3.

64bit layers

A set of new high precision layers that support extreme zoom levels

ArcLayer64

ChoroplethLayer64

ScatterplotLayer64

64bit ExtrudedChoroplethLayer

• Great for rendering 3D buildings on top of maps
• Includes a basic shading model

Sample Layers

Sample layers now available through import 'deck.gl/samples';

GeoJsonLayer (experimental)

• Initial composite layer, only Polygons for now.

Changes affecting Custom Layers

Streamlined life cycle methods

• The Layer life cycle methods are now optimized for deck.gl's needs
  and no longer try to mimic React.
• Limited compatibility with deck.gl v2 is provided but it is strongly
  recommended to update layers to the new methods

Optimizations

• Uint8Array encoding is now supported for color and picking color
  attributes, which provides significant GPU memory savings.

GLSL package manager and modules

• All layers now use assembleShaders to inject GLSL packages and platform
  fixes
• GLSL project package -
• GLSL fp64 emulated double precision floating point package
• GLSL fp32 package - 32bit improved precision library
  • Adds high precision version of trigonometry functions and tan
  • Especially for Intel GPUs

numInstances fix

Merge pull request #23 from heshan0131/performance-fix

Performance fix