3e1a9ee386
This patch contains the following changes: - the vertices and edges arrays would be assigned default values, and then reassigned new ones right away. It appears that those arrays were once global and then made local (rB06a2ee4afed4237398b69ddf253e29a730b2f9f0), so it makes sense now to initialize them with the right values. - the flame spectrum texture was created whether it was needed or not, so now it's only created if there's flame to be drawn, also split the code in a separate function. - reduce the number of parameters to the main draw function, as most of them are member of SmokeDomainSettings. - some other minor cleanups: fold multiple operations into one to get rid of one local variable, mark variables as `const` when necessary, unecessary gl draw calls, reorder the code a bit... Reviewers: campbellbarton, psy-fi Differential Revision: https://developer.blender.org/D1368