Hi Jencir C J, The Wikitude Native SDK does not include any rendering components. As you can see in our examples, augmentations are drawn in OpenGL ES 2. You can either render your video or image using Open GL ES 2 (there are plenty of tutorials on the web) or use the OpenGL matrix, provided in the callback you mentioned, to transform an iOS view into the correct perspective so that is appears to be an augmentation. For the second option, the following thread in our forum might be helpful.
almost 5 years ago