Crate dear_imgui_glow 

Glow (OpenGL) renderer for Dear ImGui

This crate provides a Glow-based renderer for Dear ImGui, allowing you to render Dear ImGui interfaces using the Glow OpenGL abstraction.

Features

• Basic rendering: Render Dear ImGui draw data using OpenGL
• Texture support: Handle font textures and user textures
• Multi-viewport support: Support for multiple windows (feature-gated)
• OpenGL compatibility: Support for OpenGL 2.1+ and OpenGL ES 2.0+

Example

use dear_imgui_rs::Context;
use dear_imgui_glow::GlowRenderer;
use glow::HasContext;

// Initialize your OpenGL context and Dear ImGui context
let gl = unsafe { glow::Context::from_loader_function(|s| {
    // Your OpenGL loader function
    std::ptr::null()
}) };
let mut imgui = Context::create();

// Create the renderer (simple usage)
let mut renderer = GlowRenderer::new(gl, &mut imgui).unwrap();

// In your render loop:
// imgui.new_frame();
// ... build your UI ...
// let draw_data = imgui.render();
// renderer.render(draw_data).unwrap();

Re-exports

pub use glow;

Structs

GlVersion

OpenGL version information

GlowRenderer

Main renderer for Dear ImGui using Glow (OpenGL)

GlslVersion

GLSL version information

SimpleTextureMap

Simple texture map implementation using a HashMap with modern texture management

Enums

InitError

Errors that can occur during renderer initialization

RenderError

Errors that can occur during rendering

Traits

TextureMap

Trait for managing texture mappings with modern Dear ImGui texture system

Functions

create_texture_from_alpha

Create a texture from raw alpha data (single channel)

create_texture_from_rgba

Create a texture from raw RGBA data

update_imgui_texture

Update texture from ImGui texture data (similar to ImGui_ImplOpenGL3_UpdateTexture)

update_texture

Update a texture with new data

Type Aliases

GlBuffer

GlProgram

GlTexture

GlUniformLocation

GlVertexArray

InitResult

Result type for initialization operations

RenderResult

Result type for rendering operations