This enables PhantomJS as a headless WebGL renderer.

Drawback: OpenGL becomes a necessary requirement, at least when WebGL support is activated. In many scenarios (with full headless demand, e.g. continuous integration server), there is no guarantee that a decent graphics card is available.

Alternative approach: use OpenGL-based software rasterizer, e.g. from Mesa llvmpipe.

Working on a WebGL based project (p3d.in) this would make phantomjs a whole lot more interesting for us for testing, but also enable us to do server side rendering of thumbnails for user uploaded 3d models.

So +1 from me :)

Support?

Closing. This issue has been moved to GitHub: https://github.com/ariya/phantomjs/issues/10273