Update usage_examples.rst

[shaneantrim]

Changed Displaying an image, using the GPU (Full Viewport Pipeline) to Displaying an image, using the CPU (Full Viewport Pipeline) Added Python example under Displaying an image, using the CPU (Full Viewport Pipeline) Added Displaying an image, using the GPU comment section.

[linux-foundation-easycla[bot]]

The committers listed above are authorized under a signed CLA.

• :white_check_mark: login: shaneantrim / name: shaneantrim (c9c6f07725a52e8d4d16363e822d4183b99c5862, 1b7e50ce8da547ba8185c5478278c9179258625a, 7bcb52b9912efa87a35fe51ffeda6c5ce6138c0a)

[carolalynn]

Hi @shaneantrim, thanks for this! In general it looks good, but we required signed commits (git commit -s). To fix this since you've already committed it:

git commit --amend -s
git push <your_remote_fork_name> <your_branch_name> --force

[shaneantrim]

My commit has been updated and signed off on.

[KelSolaar]

@doug-walker : I was wondering, do we want the C++ and Python match a bit more in what they actually implement so that it is possible to compare the difference between languages? I think that would be useful for users and maybe show that C++ is not "scary".

[KelSolaar]

Put another way, do we want the C++ and Python examples to match almost exactly?

[doug-walker]

@KelSolaar , yes, ideally the C++ and Python should match, and that is the case for the other examples on this page where both languages are present. Shane is adding a new Python example (based on the old documentation but with the new API), since he is a Python dev. Ideally at some point a C++ dev could add the corresponding code.