Class BlockBeginShader

A shader part that generates the beginning block of a shader function. This class creates GLSL function definitions with input and output parameters based on the provided shader sockets.

Hierarchy (view full)

Constructors

Properties

__webglResourceRepository?: WebGLResourceRepository = ...
__instance: CommonShaderPart

Accessors

  • get pixelShaderDefinitions(): string
  • Generates the pixel shader function definition. Returns the same definition as vertex shader since the function structure is identical.

    Returns string

    The GLSL function definition string for pixel shader

  • get vertexShaderDefinitions(): string
  • Generates the vertex shader function definition. Creates a GLSL function with the specified name, input parameters, and output parameters. The function body assigns input values to corresponding output values.

    Returns string

    The GLSL function definition string for vertex shader

Methods

  • Generates variable assignment statement with proper type declaration. Creates appropriate syntax for both WebGL (GLSL) and WebGPU (WGSL) based on the current process approach.

    Parameters

    • varName: string

      The name of the variable to declare

    • inputSocket: Socket<string, CompositionTypeEnum, ComponentTypeEnum, SocketDefaultValue>

      The socket containing type and default value information

    Returns string

    The variable assignment statement string

  • Generates varying variable assignment statement for vertex shaders. Creates code to write varying variables that will be passed to fragment shader.

    Parameters

    • inputNode: AbstractShaderNode

      The shader node that provides the varying variable

    • varNames: string[]

      Array of variable names to assign

    • j: number

      Index of the current variable in the varNames array

    Returns string

    The varying variable assignment statement string for vertex shader

  • Generates the main function beginning code for vertex or fragment shaders. Handles differences between WebGL (GLSL) and WebGPU (WGSL) shader languages.

    Parameters

    • isVertexStage: boolean

      True if generating code for vertex shader, false for fragment shader

    Returns string

    The shader code string for the main function beginning

  • Generates the main function ending code for vertex or fragment shaders. Handles differences between WebGL (GLSL) and WebGPU (WGSL) shader languages.

    Parameters

    • isVertexStage: boolean

      True if generating code for vertex shader, false for fragment shader

    Returns "\n return output;\n}\n" | "\n return rt0;\n}\n" | "\n}\n "

    The shader code string for the main function ending

  • Generates fragment/pixel shader prerequisites including definitions and varying variable declarations. Creates appropriate code for both WebGL (GLSL) and WebGPU (WGSL) based on the current process approach.

    Parameters

    • shaderNodes: AbstractShaderNode[]

      Array of shader nodes used to generate varying variables for WebGPU

    Returns string

    The complete fragment shader prerequisites code string

  • Generates vertex shader prerequisites including definitions, vertex inputs, and uniform declarations. Creates appropriate code for both WebGL (GLSL) and WebGPU (WGSL) based on the current process approach.

    Parameters

    • shaderNodes: AbstractShaderNode[]

      Array of shader nodes used to generate varying variables for WebGPU

    Returns string

    The complete vertex shader prerequisites code string