Crate webglue 

Webglue: WebGL2 wrapper for Rust and WebAssembly

This library provides an OpenGL-like API for WebAssembly/Browser environments. This crate is WASM-only and must be compiled with --target wasm32-unknown-unknown.

Features

• 59 GL functions implemented (buffers, shaders, textures, uniforms, drawing)
• Handle-based registry - Translates u32 IDs to glow’s opaque handles
• Instanced rendering - DrawElementsInstanced for high-performance rendering
• Matrix math library - Perspective, lookAt, rotate, translate, scale
• Optional GLTF loading - Load and render GLTF/GLB models

Usage

// This crate requires wasm32 target
use webglue as gl;
 
unsafe {
    // Initialize once with WebGL2 context
    gl::init_with_webgl2_context(webgl2_context);

    // Use standard GL calls
    let mut vbo = 0;
    gl::GenBuffers(1, &mut vbo);
    gl::BindBuffer(gl::ARRAY_BUFFER, vbo);
    // ... rest of your WebGL code
}

Re-exports

pub use super::constants::*;

pub use super::types::*;

pub use types::*;

pub use constants::*;

Modules

constants

math

types

utils

Utility functions for webglue

Functions

ActiveTexture^⚠

AttachShader^⚠

BindBuffer^⚠

BindFramebuffer^⚠

BindRenderbuffer^⚠

BindTexture^⚠

BindVertexArray^⚠

BlendFunc^⚠

BlendFuncSeparate^⚠

BufferData^⚠

BufferSubData^⚠

CheckFramebufferStatus^⚠

Clear^⚠

ClearColor^⚠

CompileShader^⚠

CreateProgram^⚠

CreateShader^⚠

DeleteBuffers^⚠

DeleteProgram^⚠

DeleteShader^⚠

DeleteTextures^⚠

DeleteVertexArrays^⚠

DepthMask^⚠

Disable^⚠

DisableVertexAttribArray^⚠

DrawArrays^⚠

DrawElements^⚠

DrawElementsInstanced^⚠

Enable^⚠

EnableVertexAttribArray^⚠

Finish^⚠

FramebufferRenderbuffer^⚠

FramebufferTexture2D^⚠

GenBuffers^⚠

GenFramebuffers^⚠

GenRenderbuffers^⚠

GenTextures^⚠

GenVertexArrays^⚠

GenerateMipmap^⚠

GetError^⚠

GetGraphicsResetStatus^⚠

GetIntegerv^⚠

GetProgramInfoLog^⚠

GetProgramiv^⚠

GetShaderInfoLog^⚠

GetShaderiv^⚠

GetString^⚠

GetStringi^⚠

GetUniformLocation^⚠

LinkProgram^⚠

PixelStorei^⚠

PointSize^⚠

PointSize - Set point sprite size (not supported in WebGL2, use shader)

ReadPixels^⚠

ReadPixels - Read pixels from framebuffer (stub - use browser APIs instead)

RenderbufferStorage^⚠

ShaderSource^⚠

TexImage2D^⚠

TexParameteri^⚠

TexSubImage2D^⚠

Uniform1f^⚠

Uniform1i^⚠

Uniform2f^⚠

Uniform3f^⚠

Uniform3fv^⚠

Uniform3fv - Set vec3 array uniform (stub)

Uniform4f^⚠

Uniform4fv^⚠

Uniform4fv - Set vec4 array uniform (stub)

UniformMatrix3fv^⚠

Set 3x3 matrix uniform (mat3) Used for normal transforms in lighting calculations

UniformMatrix4fv^⚠

Set 4x4 matrix uniform (mat4) Critical for 3D transforms: Model-View-Projection matrices From gl-rs patterns for matrix uniforms

UseProgram^⚠

VertexAttribDivisor^⚠

VertexAttribPointer^⚠

Viewport^⚠

init_with_context^⚠

Initialize the GL context (must be called once from WASM entry point)

load_with

Stub for gl::load_with - no-op since glow context is already initialized This is re-exported from mod.rs but duplicated here for completeness