VVL warning in 18_vertex_input

[asuessenbach]

I'm getting lots of VVL messages on running 18_vertex_input:

validation layer: type { Validation } msg: vkCmdDraw(): the last bound pipeline has pVertexBindingDescriptions[0].binding (0) (pointing to Locations [0, 1]) which didn't have a buffer bound from any vkCmdBindVertexBuffers call in this command buffer.

I think, we should either

• document (via output in the program!) that those messages are expected and resolved with 19_vertex_input
  -> ok-ish, but might look a bit strange
• use the vertexInputInfo in createGraphicsPipeline and the actual shaders from the previous chapters
  -> the difference to 17_swap_chain_recreation would be almost negligible: just the struct Vertex and the array of vertices that are still not used
• just completely remove 18_vertex_input
  -> I'd vote for this one. What would you lose if this program were skipped?

[SaschaWillems]

I agree with point 3. This is one of the biggest structural issues of the original tutorial: Some chapters are incomplete and simply won't work.