WebGL2RenderingContext

常量

请看 WebGL 常量 页面。

状态信息

WebGL2RenderingContext.getIndexedParameter()

返回指定目标的索引值。

缓冲区

WebGL2RenderingContext.copyBufferSubData()

将缓冲区的部分数据复制到另一个缓冲区。

WebGL2RenderingContext.getBufferSubData()

从缓冲区中读取数据，然后将其写入到 ArrayBuffer 或 SharedArrayBuffer 中。

帧缓冲区

WebGL2RenderingContext.blitFramebuffer()

将一个像素块从读取帧缓冲区传输到绘制帧缓冲区。

WebGL2RenderingContext.framebufferTextureLayer()

附着一个单层的材质到帧缓冲区。

WebGL2RenderingContext.invalidateFramebuffer()

使附着到缓冲区的内容失效。

WebGL2RenderingContext.invalidateSubFramebuffer()

使附着到缓冲区的部分内容失效。

WebGL2RenderingContext.readBuffer()

选择一个颜色缓冲作为像素的 source。

渲染缓冲区

WebGL2RenderingContext.getInternalformatParameter()

Returns information about implementation-dependent support for internal formats.

WebGL2RenderingContext.renderbufferStorageMultisample()

Creates and initializes a renderbuffer object's data store and allows specifying the number of samples to be used.

纹理

WebGL2RenderingContext.texStorage2D()

Specifies all levels of two-dimensional texture storage.

WebGL2RenderingContext.texStorage3D()

Specifies all levels of a three-dimensional texture or two-dimensional array texture.

WebGL2RenderingContext.texImage3D()

Specifies a three-dimensional texture image.

WebGL2RenderingContext.texSubImage3D()

Specifies a sub-rectangle of the current 3D texture.

WebGL2RenderingContext.copyTexSubImage3D()

Copies pixels from the current WebGLFramebuffer into an existing 3D texture sub-image.

WebGL2RenderingContext.compressedTexImage3D()

Specifies a three-dimensional texture image in a compressed format.

WebGL2RenderingContext.compressedTexSubImage3D()

Specifies a three-dimensional sub-rectangle for a texture image in a compressed format.

程序和着色器

WebGL2RenderingContext.getFragDataLocation()

Returns the binding of color numbers to user-defined varying out variables.

Uniforms 和 Attributes

WebGL2RenderingContext.uniform[1234][fiu][v]()

指定一个 uniform 变量。

WebGL2RenderingContext.uniformMatrix[1234][fv]()

指定一个 uniform 矩阵变量。

WebGL2RenderingContext.vertexAttribI[iuv]()

Methods specifying integer values for generic vertex attributes.

WebGL2RenderingContext.vertexAttribIPointer()

Specifies integer data formats and locations of vertex attributes in a vertex attributes array.

绘图缓冲区

WebGL2RenderingContext.vertexAttribDivisor()

Modifies the rate at which generic vertex attributes advance when rendering multiple instances of primitives with gl.drawArraysInstanced() and gl.drawElementsInstanced().

WebGL2RenderingContext.drawArraysInstanced()

Renders primitives from array data. In addition, it can execute multiple instances of the range of elements.

WebGL2RenderingContext.drawElementsInstanced()

Renders primitives from array data. In addition, it can execute multiple instances of a set of elements.

WebGL2RenderingContext.drawRangeElements()

Renders primitives from array data in a given range.

WebGL2RenderingContext.drawBuffers()

Specifies a list of color buffers to be drawn into.

WebGL2RenderingContext.clearBuffer[fiuv]()

Clears buffers from the currently bound framebuffer.

查询对象

Methods for working with WebGLQuery objects.

WebGL2RenderingContext.createQuery()

创建一个新的 WebGLQuery 对象。

WebGL2RenderingContext.deleteQuery()

删除一个指定的 WebGLQuery 对象。

WebGL2RenderingContext.isQuery()

Returns true if a given object is a valid WebGLQuery object.

WebGL2RenderingContext.beginQuery()

开始一个异步查询。

WebGL2RenderingContext.endQuery()

Marks the end of an asynchronous query.

WebGL2RenderingContext.getQuery()

返回一个指定目标的 WebGLQuery 对象。

WebGL2RenderingContext.getQueryParameter()

返回关于一个查询的信息。

采样对象

WebGL2RenderingContext.createSampler()

Creates a new WebGLSampler object.

WebGL2RenderingContext.deleteSampler()

Deletes a given WebGLSampler object.

WebGL2RenderingContext.bindSampler()

Binds a given WebGLSampler to a texture unit.

WebGL2RenderingContext.isSampler()

Returns true if a given object is a valid WebGLSampler object.

WebGL2RenderingContext.samplerParameter[if]()

Sets sampler parameters.

WebGL2RenderingContext.getSamplerParameter()

Returns sampler parameter information.

同步对象

WebGL2RenderingContext.fenceSync()

创建一个 WebGLSync 对象并插入到 GL 命令流中。

WebGL2RenderingContext.isSync()

Returns true if the passed object is a valid WebGLSync object.

WebGL2RenderingContext.deleteSync()

删除一个指定的 WebGLSync 对象。

WebGL2RenderingContext.clientWaitSync()

Blocks and waits for a WebGLSync object to become signaled or a given timeout to be passed.

WebGL2RenderingContext.waitSync()

Returns immediately, but waits on the GL server until the given WebGLSync object is signaled.

WebGL2RenderingContext.getSyncParameter()

根据一个 WebGLSync 对象返回参数信息。

变换反馈

WebGL2RenderingContext.createTransformFeedback()

创建并初始化 WebGLTransformFeedback 对象。

WebGL2RenderingContext.deleteTransformFeedback()

删除一个指定的 WebGLTransformFeedback 对象。

WebGL2RenderingContext.isTransformFeedback()

Returns true if the passed object is a valid WebGLTransformFeedback object.

WebGL2RenderingContext.bindTransformFeedback()

Binds a passed WebGLTransformFeedback object to the current GL state.

WebGL2RenderingContext.beginTransformFeedback()

Starts a transform feedback operation.

WebGL2RenderingContext.endTransformFeedback()

Ends a transform feedback operation.

WebGL2RenderingContext.transformFeedbackVaryings()

Specifies values to record in WebGLTransformFeedback buffers.

WebGL2RenderingContext.getTransformFeedbackVarying()

Returns information about varying variables from WebGLTransformFeedback buffers.

WebGL2RenderingContext.pauseTransformFeedback()

Pauses a transform feedback operation.

WebGL2RenderingContext.resumeTransformFeedback()

Resumes a transform feedback operation.

Uniform 缓冲对象

WebGL2RenderingContext.bindBufferBase()

Binds a given WebGLBuffer to a given binding point (target) at a given index.

WebGL2RenderingContext.bindBufferRange()

Binds a range of a given WebGLBuffer to a given binding point (target) at a given index.

WebGL2RenderingContext.getUniformIndices()

Retrieves the indices of a number of uniforms within a WebGLProgram.

WebGL2RenderingContext.getActiveUniforms()

Retrieves information about active uniforms within a WebGLProgram.

WebGL2RenderingContext.getUniformBlockIndex()

Retrieves the index of a uniform block within a WebGLProgram.

WebGL2RenderingContext.getActiveUniformBlockParameter()

Retrieves information about an active uniform block within a WebGLProgram.

WebGL2RenderingContext.getActiveUniformBlockName()

Retrieves the name of the active uniform block at a given index within a WebGLProgram.

WebGL2RenderingContext.uniformBlockBinding()

Assigns binding points for active uniform blocks.

顶点数组对象

Methods for working with WebGLVertexArrayObject (VAO) objects.

WebGL2RenderingContext.createVertexArray()

创建一个新的 WebGLVertexArrayObject。

WebGL2RenderingContext.deleteVertexArray()

删除一个指定的 WebGLVertexArrayObject。

WebGL2RenderingContext.isVertexArray()

如果一个指定的 WebGLVertexArrayObject 对象有效则返回 true。

WebGL2RenderingContext.bindVertexArray()

绑定一个指定的 WebGLVertexArrayObject 到缓冲。

规范

浏览器兼容性

相关链接

• HTMLCanvasElement
• WebGLRenderingContext