I modified the multi frame branch to use render.FORMAT_RGBA32F you can clearly see the differences.
Before
After
render.FORMAT_RGBA16F for reference
If you want to use these values make sure you check in your script if they are nil or not. Older/mobile platforms may not support.
Here is the main branch with render.FORMAT_RGBA32F enabled.
Without
There is no “render.FORMAT_DEPTH32F” (I don’t know why).