Beginning Android Games, Third Edition

© Mario Zechner, J.F. DiMarzio and Robert Green 2016

Mario Zechner, J. F. DiMarzio and Robert Green, Beginning Android Games, 10.1007/978-1-4842-0472-6_10

10. OpenGL ES: Going 3D

Mario Zechner¹ , J. F. DiMarzio² and Robert Green³

(1)Graz, Steiermark, Austria

(2)Celebration, Florida, USA

(3)Portland, Oregon, USA

Super Jumper worked out rather well with the 2D OpenGL ES rendering engine. Now, it’s time to go full 3D. We actually already worked in a 3D space when we defined our view frustum and the vertices of our sprites. In the latter case, the z coordinate of each vertex was simply set to 0 by default. The difference from 2D rendering really isn’t all that big:

• Vertices have not only x and y coordinates, but also a z coordinate.

• Instead of an orthographic ...