#3161: Bouncing smoke particles

git-svn-id: https://svn.thedarkmod.com/svn/darkmod_src/trunk@6237 49c82d7f-2e2a-0410-a16f-ae8f201b507f
#3878 Soft particles tweak. Do not enforce vertex coloring.

git-svn-id: https://svn.thedarkmod.com/svn/darkmod_src/trunk@6259 49c82d7f-2e2a-0410-a16f-ae8f201b507f