Make cascade split modifiable
Fix #1665 (kart hovering in pyramid after jump) by only cushioning with
half the computed impulse.
Merge branch 'master' of github.com:supertuxkart/stk-code
Intro cutscene fixes
Fixed --camera-wheel-debug command line option (better distance
computation, no smoothing); removed unused function.
Prepare compute shader to stretch lightcoord
Implement depth histogram to position cascade split
Merge branch 'sdsm'
Make envmap reflexion less blurry
Fix sqrt(int) in diffuseenvmap
Fix #966 Don't select a kart/keyboard configuration automatically in multiplayer