Falling through Terrain

[CJO Games]

Playing newly created terrain sees the player falling through the terrain - unlike the last terrain issue the player falls continuously as though the physics in the map are not working at all.

Thea Mk2.zip Thea Mk1.zip

[Josh]

It looks like this has to do with scaling of the terrain...stay tuned...

[Josh]

Even unscaled terrain seems to not work too well against the player. I suspect this has to do with me adding half-floats into the terrain collider....

[Josh]

Maybe not. I switched to 32-bit floats and I still get the same strange behavior.  Standby...

[Josh]

There's also a slight mismatch between the terrain collider and the visible geometry, maybe a one-meter horizontal offset...

[Josh]

Okay, I found there was a small error in the terrain texcoord calculation, which caused heightmap lookups to be half a pixel off. This caused a mismatch between the visual and physics geometry. I will continue working on this tomorrow, but I suspect everything will work out correctly now.

[Josh]

I have fixed the horizontal scaling. However, it looks like vertical scaling of terrain is not supported. Something should be done to resolve this or prevent the user from creating the situation, but I am not sure what yet...

[CJO Games]

That's great - thanks. The vertical scaling was mostly borne out of mu own laziness rather than it needing to happen that way :-)

[Josh]

I think I have a solution.

In the terrain loading code, if the y component of the terrain scale is not one, then it gets set to one and every terrain point's height gets multiplied by that scale value.