Sergey Sharybin
1dd7156c4c
This was in fact really nasty bug, caused by multitex_nodes function using global variable R (which is a copy of current renderer). this variable is not initialized to anything meaningful for until first rendering (preview or final) happened. Since multitex_nodes might be used outside of render pipeline, made it so whether CM is on or off as an argument to functions multitex_ext_safe and multitex_ext. Now multitex_nodes() is only shall be used for stuff happening from render pipeline! Also needed to make some changes to other places, so all the usages of texture sampling knows for the fact whether CM is on or off. And one more change is related on behavior of dispalcement, wave, warp, weightvg modifiers and smoke. They'll be always using CM off since texture is used for influence, not for color. It's rather bigger patch, but it's mostly straightforward changes, which we really need to be done. Reviewed by Brecht, thanks!