The Khronos Group

Reference Guides

The Khronos Group Reference Guides are available as downloadable PDFs, online viewable format using Slideshare and a hardcopy format from LuLu.
If you find a mistake in any of the reference guides, please submit a bug.

COLLADA

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1.4
Slideshare (1.4)

glTF

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2.0
Slideshare (2.0)

EGL

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1.4
Slideshare (1.4)

OpenCL

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1.1, 1.2, 2.0, 2.1, 2.2
3.0
Slideshare (3.0)

OpenGL

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4.1, 4.2, 4.3, 4.4, 4.5
4.6
Slideshare (4.6)

OpenGL ES

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2.0, 3.0, 3.1, 3.2
Slideshare (3.2)

OpenGL SC

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2.0
Slideshare (2.0)

OpenVG

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1.1
Slideshare (1.1)

OpenVX

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1.0, 1.1, 1.2, 1.3
Slideshare (1.3)

OpenXR

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1.0
Slideshare (1.0)

SYCL

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1.2, 1.2.1
Slideshare (2020)

Vulkan

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1.0, 1.1
Slideshare (1.1)

WebGL

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2.0, 1.0
Slideshare (2.0)