It would sometimes be useful to visualise some or all of the following:
visualize all cloned (from other portal) geometry in the player's portal environment
different colors for holy wall vs sides
change opacity based on whether this tick's movement trace was testing against the surfaces (when ray is considered to be intersecting portal hole, which actually starts a bit into the portal)
draw line visualizing attempted movement trace, and somehow show instantaneous steps upwards
These ideas are geared less towards TASing and more towards glitch research.
It would sometimes be useful to visualise some or all of the following:
These ideas are geared less towards TASing and more towards glitch research.