AIR 3.0 and Stage3D

Question

There isn't any tutorials on the web on how to use Stage3D on AIR 3.0. How do I enable it in Flash Builder 4?

I have countless trial and error when testing 2D/3D framework:

VerifyError: Error #1014: Class flash.display::Stage3D could not be found.

Answer 1

You will need the flex 4.5.1 SDK installed, as well as a playerglobal.swc from FP11. Check out this tutorial: Creating a Custom Flex 4.5 SDK to Target Flash 11 and AIR 3

Answer 2

You need to edit your app's XML file. That's the descriptor file with settings like the icons, resolutions etc. You need to add or edit:

<renderMode>gpu</renderMode>

This goes inside the <initialWindow> tag.