Animation events

[almarklein]

Having events that represent ticks at a fixed interval can help in certain animation and games. Apart for a ticker, it'd also need a scalar time_since_last_tick at draw-time, so rendering code can interpolate between ticks.

[hmaarrfk]

i found that i also needed a global variable for "time" in the shader. i added this to the standard defines.

[Vipitis]

Time since first frame (or startup) as well as a time since last frame would make sense. Perhaps in a context when recording something faster or slower than realtime... you might want to manually provide these and precalculated intervals. Which then again makes this too complex.

If I recall correctly, the stats (to put fps in title) already keep track of this. But it's not publicly exposed.