The graphics-programming pipeline-analysis and debugging tool RenderDoc made it to version 1.0.
You can inspect the stages of your rendering, buffer contents, call stacks, etc. with visualizations. It is a valuable tool to get your rendering code right and improve it. Just start your Vulkan, D3D11, D3D12 or OpenGL application via RenderDoc, take a snapshot and start the investigation.
Check out the in-depth release notes on github.