PixiJS

Class: GlContextSystem

GlContextSystem

System plugin to the renderer to manage the context

new GlContextSystem (renderer)

ts:123
Name Type Description
renderer WebGLRenderer

The renderer this System works for.

Implements

Members

extensions object readonly

Extensions available.

Properties:
Name Type Description
anisotropicFiltering EXT_texture_filter_anisotropic

WebGL v1 and v2 extension
depthTexture WEBGL_depth_texture

WebGL v1 extension
drawBuffers WEBGL_draw_buffers

WebGL v1 extension
floatTexture OES_texture_float

WebGL v1 extension
loseContext WEBGL_lose_context

WebGL v1 extension
vertexArrayObject OES_vertex_array_object

WebGL v1 extension

isLost boolean readonly

true if the context is lost

supports object readonly

Features supported by current renderer.

Properties:
Name Type Default Description
msaa boolean true

Support for MSAA (antialiasing of dynamic textures)
nonPowOf2mipmaps boolean true

Support for mipmaps if a texture is non-power of two
nonPowOf2wrapping boolean true

Support for wrapping modes if a texture is non-power of two
srgbTextures boolean true

Support for SRGB texture format
uint32Indices boolean true

Support for 32-bit indices buffer.
uniformBufferObject boolean true

Support for UniformBufferObjects
vertexArrayObject boolean true

Support for VertexArrayObjects

Methods

contextChange (gl) void protected

ts:144

Handles the context change event.

Name Type Description
gl WebGLRenderingContext

New WebGL context.

createContext (preferWebGLVersion, options) void protected

ts:211

Initialize from context options

Name Type Description
preferWebGLVersion 1 | 2
options object

context attributes
See:

getExtensions () void protected

ts:244

Auto-populate the extensions.

handleContextLost (event) void protected

ts:294

Handles a lost webgl context

Name Type Description
event WebGLContextEvent

The context lost event.

handleContextRestored () void protected

ts:303

Handles a restored webgl context.

initFromContext (gl) void protected

ts:188

Initializes the context.

Name Type Description
gl WebGLRenderingContext

WebGL context

validateContext (gl) void protected

ts:327

Validate context.

Name Type Description
gl WebGLRenderingContext

Render context.