Blender Git Loki

WIP changes

Fixed crash when creating a new particle system with any colliders

update comment

Use the triangle normal if the hit point lies inside the triangle

Deduplicated the "nudge particle out of face" code

Clamp bayu weights to prevent extrapolated velocity values

Minor clean up

Added a variable to keep track of delta time collision for colliders

Added friction and fixed some issue that were discovered when doing so.

Deflection fixes and cleanup

Update velocity calculation to be better and move the normal constraint check

Make colliders be able to push particles even if dampeing is 1

Fixed "popping" and some tunneling issues with moving colliders

Calculate normals from collision triangles using the closest point

Fix particles colliding twice because they didn't have time to move

Hooked up perlimenary dampening and multiple collision per time step

More experiments

More tweaking to the collision reponse.

Simplified the moving triangle collision check algo

Work on trying to get the collision responses of moving object correct

Still broken now though...