Continuing the discussion from Beta release 14 comments:
This is an ongoing problem. At present it is not possible for an avatar to walk up a set of stairs unless the vertical stairstep separation is minimal. Even using primitive shapes does not work for more than 0.2m verticals, and then it tends to be nondeterministic if the strike angle is greater than 45 degrees, more or less. It would be really nice to get this one out of the way.
The use of an invisible ramp mitigation does not work well, because:
- it mars the scene by having the avatar’s feet float well over the stair steps. In an HMD based view or in close-up machinima, it damages the verisimilitude of the world
- The avatar slides downhill when they stop (stiction is not implemented, and no signs it ever will be)
IRL, people can walk up stairs easily with riser spacing up to 0.21m (the IBT standard is 7.75" 20cm). In practice people can climb stairs nearly up to their knee height (2.5ft 0.75m). 0.75m is Second Life’s standard “can climb” limit.
This request is to make the changes to permit avatars to walk up obstacles of up to 0.75m height. A bonus implementation would be to base the height limit on the avatar’s standing knee height. @Caitlyn