I enjoy the book so far. I am fairly new to OpenGLES 2 and it really helps me moving forward a bit faster.
At the moment, however, I am stucked on chapter 7 exercises. I am wondering if you can shed some lights.
The first exercise, loading a different image is fairly straight forward. I can load another image on top of the blue table, partly covering it.
However, I am lost on how to blend the new image with the current one (blue table). The TextureShaderProgram.java and the texture_shader_fragment.glsl only has one texture unit associated with them. Are we suppose to modify both files to have another new texture unit?
Thanks for any pointers on this one,