Crate willow

Willow is a library for using the WebGL API in WebAssembly projects. It generates type-safe wrappers for WebAssembly programs using a macro syntax.

Re-exports

• pub use anyhow;

Macros

• create_programs
  This macro allows efficient batch creation of programs by compiling and linking in parallel.

Structs

• Attribute
  In a Program-deriving struct, a field of type Attribute<T> indicates that the vertex shader has an attribute with the type compatible with T.
• Buffer
  Wraps a WebGL buffer.
• Context
  A wrapper for a WebGL rendering context.
• Error
  The Error type, a wrapper around a dynamic error type.
• Indices
  Stores the indices of a buffer.
• ProgramData
  An internal type used to hold program-specific resources. There must be exactly one field in a Program-deriving struct holding ProgramData as the value.
• Uniform
  In a Program-deriving struct, a field of type Uniform<T> indicates that the vertex shader has a uniform with the type compatible with T.

Enums

• BufferDataUsage
  The usage parameter passed to bufferData.
• RenderPrimitiveType
  The type of rendering primitive.

Traits

• AttrStruct
  The trait implemented by attribute structs.
• AttributeType
  Types that can be used as an attribute argument type.
• Program
  Represents WebGL programs.
• UniformType
  Types that can be used as a uniform argument type.

Type Aliases

• Result
  Result<T, Error>

Derive Macros

• Program
  Derives a user-friendly wrapper for WebGlProgram from a struct.