Class ShaderProgram

Shader program, corresponding to the GPU shader program.

Hierarchy

ShaderProgram

Constructors

constructor

new ShaderProgram(engine: Engine, vertexSource: string, fragmentSource: string): ShaderProgram
Parameters
- engine: Engine
- vertexSource: string
- fragmentSource: string
Returns ShaderProgram
- Defined in core/shader/ShaderProgram.ts:51

Properties

`Private` _activeTextureUint

_activeTextureUint: number = 0

Currently active texture unit.

`Private` _engine

_engine: Engine

`Private` _fragmentShader

_fragmentShader: WebGLShader

`Private` _gl

_gl: WebGLRenderingContext

`Private` _glProgram

_glProgram: WebGLProgram

`Private` _isValid

_isValid: boolean

`Private` _vertexShader

_vertexShader: WebGLShader

attributeLocation

attributeLocation: Record<string, number> = ...

Attribute variable location in webgl.

`Readonly` cameraUniformBlock

cameraUniformBlock: ShaderUniformBlock = ...

id

id: number

Shader program id.

`Readonly` materialUniformBlock

materialUniformBlock: ShaderUniformBlock = ...

`Readonly` otherUniformBlock

otherUniformBlock: ShaderUniformBlock = ...

`Readonly` rendererUniformBlock

rendererUniformBlock: ShaderUniformBlock = ...

`Readonly` sceneUniformBlock

sceneUniformBlock: ShaderUniformBlock = ...

`Static` `Private` _counter

_counter: number = 0

Shader program counter.

Accessors

glProgram

get glProgram(): WebGLProgram
WebGL program.

Returns WebGLProgram
- Defined in core/shader/ShaderProgram.ts:40

isValid

get isValid(): boolean
Whether this shader program is valid.

Returns boolean
- Defined in core/shader/ShaderProgram.ts:47

Methods

`Private` _createProgram

_createProgram(vertexSource: string, fragmentSource: string): WebGLProgram
Create a webgl program instance.

Returns
WebGL program.
Parameters
- vertexSource: string
  
  Vertex source code.
- fragmentSource: string
  
  Fragment source code.
Returns WebGLProgram
- Defined in core/shader/ShaderProgram.ts:74

`Private` _createShader

_createShader(shaderType: number, shaderSource: string): WebGLShader
Create and compile shader.

Returns
WebGLShader | null
Parameters
- shaderType: number
  
  Fragment shader code or vertex shader code.
- shaderSource: string
  
  Fragment shader source code or vertex shader source code.
Returns WebGLShader
- Defined in core/shader/ShaderProgram.ts:119

`Private` _getAttributeInfos

_getAttributeInfos(): WebGLActiveInfo[]
Get the address of the active attribute variable in the current webgl program.

Returns
Array of attribute variable addresses.

Returns WebGLActiveInfo[]
- Defined in core/shader/ShaderProgram.ts:320

`Private` _getUniformInfos

_getUniformInfos(): WebGLActiveInfo[]
Get the address of the active uniform variable in the current webgl program.

Returns
Array of uniform variable addresses.

Returns WebGLActiveInfo[]
- Defined in core/shader/ShaderProgram.ts:303

`Private` _groupingUniform

_groupingUniform(uniform: ShaderUniform, group: ShaderDataGroup, isTexture: boolean): void
Push texture data or uniform data into the block of the corresponding group.
Parameters
- uniform: ShaderUniform
  
  Shader uniform.
- group: ShaderDataGroup
  
  Shader data group: Scene, Camera, Renderer and Material.
- isTexture: boolean
  
  Is it a texture or a uniform variable.
Returns void
- Defined in core/shader/ShaderProgram.ts:153

`Private` _recordLocation

_recordLocation(): void
Record the location of uniform/attribute.

Returns void
- Defined in core/shader/ShaderProgram.ts:195

bind

bind(): boolean
Bind this shader program.

Returns
Whether the shader program is switched.

Returns boolean
- Defined in core/shader/ShaderProgram.ts:393

destroy

destroy(): void
Returns void
- Defined in core/shader/ShaderProgram.ts:403

uploadAll

uploadAll(uniformBlock: ShaderUniformBlock, shaderData: ShaderData): void
Upload all shader data in shader uniform block.
Parameters
- uniformBlock: ShaderUniformBlock
  
  shader Uniform block
- shaderData: ShaderData
  
  shader data
Returns void
- Defined in core/shader/ShaderProgram.ts:339

uploadTextures

uploadTextures(uniformBlock: ShaderUniformBlock, shaderData: ShaderData): void
Upload texture shader data in shader uniform block.
Parameters
- uniformBlock: ShaderUniformBlock
  
  shader Uniform block
- shaderData: ShaderData
  
  shader data
Returns void
- Defined in core/shader/ShaderProgram.ts:372

uploadUniforms

uploadUniforms(uniformBlock: ShaderUniformBlock, shaderData: ShaderData): void
Upload constant shader data in shader uniform block.
Parameters
- uniformBlock: ShaderUniformBlock
  
  shader Uniform block
- shaderData: ShaderData
  
  shader data
Returns void
- Defined in core/shader/ShaderProgram.ts:349

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