“Almost Native Graphics Layer Engine,” or ANGLE for short is a new Google’s open source project – aims to implement most of OpenGL ES 2.0 API over DirectX 9.0c API calls. “We're open-sourcing ANGLE under BSD license as an early work-in-progress, but when complete, it’ll enable browsers like Google Chrome to run WebGL content on Windows computers without having to rely on OpenGL drivers.” “Current browser implementations of WebGL need to be able to issue graphics commands to desktop OpenGL to render content. This requirement isn't a problem on computers running OS X or Linux, where OpenGL is primary 3D API and therefore enjoys solid support. On Windows, however, most graphics-intensive apps use Microsoft Direct3D APIs instead of OpenGL, so OpenGL drivers aren’t always available. Unfortunately, this situation means that even if they’ve powerful graphics hardware, many Windows machines can't render WebGL content because they don't have necessary OpenGL drivers installed. ANGLE will allow Windows users to run WebGL content without having to find and install new drivers for their system,” notes Google.
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