dEngine: iOS 3D renderer source code I've decided to release the source code of the OpenGS ES 1.0/2.0 renderers I wrote in the summer of 2009 nicknamed "dEngine". It was the first renderer to feature Shadow Mapping and Bump Mapping on iPhone at the time. Note that shadow mapping was achieved by packing the depth informations in a color texture but now you have access to GL_OES_depth_texture so you