DearDaniel wrote

I have two big questions regarding to the VAO. (It might be helpful to understand my question if you know the coding of the gl3 version of hello triangle )

1. How should I store my vertex information into the array? I know it is user-defined but what is the usual practice? I am puzzled because, in the hello triangle version, I saw 5 floats for each vertex but there are no description about their identity. What are they? Why can't just x,y,z,w? Is it recommended to combining the colors and coordinates into a single VAO?

2. Is it recommended to ArrayList to hold the vertex information before packaging it into a buffer? If yes, could you kindly give an example of putting an ArrayList into a buffer usable in opengl3?

If there are any conceptual mistakes in my questions, please fill free to point it out. I am still new to opengl 3. thanks.

Daniel