Fog support, Draw distance cutoff

[tklajnscek]

Robert, I've added support for fog so that the lights shafts fade into it nicely. I also added a draw distance parameter to stop drawing the effect beyond a certain distance as a performance optimization. Tried to keep the changes as minimal as possible. Feel free to use any parts of it if you feel like it's useful for you :)

Log:

• Support fading into fog (all Unity fog modes supported, using shader keywords to optimize shader runtime)
• Added 'Draw distance' parameter to stop the effect from rendering after a certain distance from the camera. Hardcoded fade out at the final 10% of the range for now.

[robcupisz]

Thanks, good stuff :)

I think I'll refrain from merging it to keep light shafts from being bloated - there's dozens of little features like that which could be added ;) So if someone will need these particular changes, they'll get them from your pr.

[TimNick151297]

Hi Robert, is it possible to add lightshafts for point lights? :) Would be cool, if a point light could also cast realtime lightshafts :)