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When I write OpenGL (1.0) programs for Android, I found it not easy to debug my programs. OpenGL is just a fixed pipeline of several steps which process vertex coordintates. Is there any way to peek and see what are results of consecutive steps of the pipeline?
Added: Mad Scientist, thanks for your advice. However, I tried to use Tracer for OpenGL ES (following instructions from http://developer.android.com/tools/help/gltracer.html ) and I'm still not sure on how do I find the information I need. I can see slider to choose a frame, then I can see a list of functions called. When I choose one of functions, I can see GL state. But when I look (inside this GL state) at context 0 -> vertex array data -> generic vertex attributes, all coordinates I can see are zeroes. Is it normal? My main hope is that in those situations when I can see nothing but a black screen I would be able to see what are vertexes' coordinates before and after multiplication by matrices and this will help me find out why they are invisible.
Use the OpenGL Tracer for Android, it is part of the Android SDK. Just start the
Monitorprogram and trace your App.I found the Tracer a bit temperamental and it does not work with my Nexus 10, but if it works it provides a lot of information.