gl-boilerplate

GLFW + GLAD

GL Version	Windows	macOS	Linux
Legacy	✅	⚠️*	✅
GL 3.3 Core	✅	✅**	✅
GL 4.1 Core	✅	✅	✅
GL 4.6 Core	✅	❌***	⚠️****
GLES 2.0	⚠️†	❌	⚠️‡
GLES 3.0	⚠️†	❌	⚠️‡

* Legacy OpenGL not supported on modern macOS (10.14+). GLAD with compatibility profile is required
** Requires forward compatible context
*** macOS only supports up to OpenGL 4.1
**** Requires recent GPU/driver with GL 4.6 support
† Requires proper drivers for GLES support (some of the latest AMD and NVIDIA drivers do)
‡ Mesa provides GLES support through translation layer or direct hardware support if available

GLFW + GLAD2

GL Version	Windows	macOS	Linux
Legacy	✅	⚠️*	✅
GL 3.3 Core	✅	✅**	✅
GL 4.1 Core	✅	✅	✅
GL 4.6 Core	✅	❌***	⚠️****
GLES 2.0	⚠️†	❌	⚠️‡
GLES 3.0	⚠️†	❌	⚠️‡

* Legacy OpenGL not supported on modern macOS (10.14+). GLAD with compatibility profile is required
** Requires forward compatible context
*** macOS only supports up to OpenGL 4.1
**** Requires recent GPU/driver with GL 4.6 support
† Requires proper drivers for GLES support (some of the latest AMD and NVIDIA drivers do)
‡ Mesa provides GLES support through translation layer or direct hardware support if available

GLFW + GLAD2 (EGL)

These demos are bounded to fail as they explicitly request EGL contexts which these platforms do not natively support.

GL Version	Windows	macOS	Linux
GLES 2.0	❌	❌	⚠️†
GLES 3.0	❌	❌	⚠️†

† Again, Linux survives because Mesa provides a compliant EGL interface

glfw_glad2_egl_200es.cpp

On Windows:

GLFW Error 65542: EGL: Library not found
Failed to create GLFW window

On macOS:

GLFW Error 65542: EGL: Library not found
Failed to create GLFW window

On Linux (wsl):

EGL Version: 1.5
EGL Vendor: Mesa Project
EGL Version: 1.5
EGL Client APIs: OpenGL OpenGL_ES
GL Vendor: Microsoft Corporation
GL Renderer: D3D12 (AMD Radeon(TM) Graphics)
GL Version: OpenGL ES 3.1 Mesa 23.0.4-0ubuntu1~22.04.1
GLSL Version: OpenGL ES GLSL ES 3.10
Max Viewport Dimensions: 16384x16384
GLAD GLES version: 3.1

GLFW + GLAD2 + ANGLE (EGL)

GL Version	Windows	macOS	Linux
GLES 2.0		✅
GLES 3.0		✅

glfw_glad2_angle_egl_200es.cpp

On Windows:

On macOS (2018 Mac mini):

EGL Version: 1.5
EGL Vendor: Google Inc. (Intel Inc.)
EGL Version: 1.5 (ANGLE 2.1.23876 git hash: fffbc739779a)
EGL Client APIs: OpenGL_ES
GL Vendor: Google Inc. (Intel Inc.)
GL Renderer: ANGLE (Intel Inc., Intel(R) UHD Graphics 630, OpenGL 4.1 INTEL-22.5.10)
GL Version: OpenGL ES 3.0.0 (ANGLE 2.1.23876 git hash: fffbc739779a)
GLSL Version: OpenGL ES GLSL ES 3.00 (ANGLE 2.1.23876 git hash: fffbc739779a)
Max Viewport Dimensions: 16384x16384
GLAD GLES version: 3.0

On Linux:

GLAD2 + SwANGLE

OpenGL ES on SwiftShader Vulkan

From SwiftShader repo:

SwiftShader is a high-performance CPU-based implementation of the Vulkan 1.3 graphics API. Its goal is to provide hardware independence for advanced 3D graphics.

NOTE: The ANGLE project can be used to achieve a layered implementation of OpenGL ES 3.1 (aka. "SwANGLE").

GL Version	Windows	macOS	Linux
GLES 2.0
GLES 3.0
GLES 3.1

OpenCL (or OpenCL ES) on ANGLE

CL Version	Windows	macOS	Linux
Legacy